diff --git a/.env.dist b/.env.dist
new file mode 100644
index 0000000..8d86528
--- /dev/null
+++ b/.env.dist
@@ -0,0 +1,12 @@
+# SERVICE
+SERVICE_URL=0.0.0.0
+SERVICE_PORT=5003
+
+# PRISMA
+DATABASE_URL="postgresql://configuration:configuration@v3-configuration-db:5432/configuration?schema=public"
+
+# RABBIT MQ
+RMQ_URI=amqp://v3-broker:5672
+
+# POSTGRES
+POSTGRES_IMAGE=postgres:15.0
diff --git a/.gitignore b/.gitignore
index 22f55ad..72abbee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,7 @@
+# custom
+.postgresql
+.env
+
 # compiled output
 /dist
 /node_modules
@@ -32,4 +36,4 @@ lerna-debug.log*
 !.vscode/settings.json
 !.vscode/tasks.json
 !.vscode/launch.json
-!.vscode/extensions.json
\ No newline at end of file
+!.vscode/extensions.json
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..04662d2
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,45 @@
+image: docker:20.10.22
+
+stages:
+  - test
+  - build
+
+##############
+# TEST STAGE #
+##############
+
+test:
+  stage: test
+  image: docker/compose:latest
+  variables:
+    DOCKER_TLS_CERTDIR: ""
+  services:
+    - docker:dind
+  script:
+    - docker-compose -f docker-compose.ci.yml --env-file ci/.env.ci up -d
+    - sh ci/wait-up.sh
+    - docker exec -t v3-configuration sh -c "npm run test:integration:ci"
+  coverage: /All files[^|]*\|[^|]*\s+([\d\.]+)/
+  rules:
+    - if: '$CI_MERGE_REQUEST_TARGET_BRANCH_NAME == $CI_DEFAULT_BRANCH || $CI_COMMIT_MESSAGE =~ /--check/ || $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH' 
+      when: always
+
+###############
+# BUILD STAGE #
+###############
+
+build:
+  stage: build
+  image: docker:20.10.22
+  variables:
+    DOCKER_TLS_CERTDIR: ""
+  services:
+    - docker:dind
+  before_script:
+    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
+  script:
+    - docker build --pull -t "$CI_REGISTRY_IMAGE" .
+    - docker push "$CI_REGISTRY_IMAGE"
+  only:
+    - main
+  when: manual
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..67d373d
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,72 @@
+###################
+# BUILD FOR LOCAL DEVELOPMENT
+###################
+
+FROM node:18-alpine3.16 As development
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Copy application dependency manifests to the container image.
+# A wildcard is used to ensure copying both package.json AND package-lock.json (when available).
+# Copying this first prevents re-running npm install on every code change.
+COPY --chown=node:node package*.json ./
+
+# Install app dependencies using the `npm ci` command instead of `npm install`
+RUN npm ci
+
+# Bundle app source
+COPY --chown=node:node . .
+
+# Use the node user from the image (instead of the root user)
+USER node
+
+###################
+# BUILD FOR PRODUCTION
+###################
+
+FROM node:18-alpine3.16 As build
+
+WORKDIR /usr/src/app
+
+COPY --chown=node:node package*.json ./
+
+# In order to run `npm run build` we need access to the Nest CLI.
+# The Nest CLI is a dev dependency,
+# In the previous development stage we ran `npm ci` which installed all dependencies.
+# So we can copy over the node_modules directory from the development image into this build image.
+COPY --chown=node:node --from=development /usr/src/app/node_modules ./node_modules
+
+COPY --chown=node:node . .
+
+# Copy prisma (needed for migrations)
+COPY --chown=node:node ./prisma prisma
+
+# Run the build command which creates the production bundle
+RUN npm run build
+
+# Set NODE_ENV environment variable
+ENV NODE_ENV production
+# Running `npm ci` removes the existing node_modules directory.
+# Passing in --only=production ensures that only the production dependencies are installed.
+# This ensures that the node_modules directory is as optimized as possible.
+RUN npm ci --only=production && npm cache clean --force
+
+USER node
+
+###################
+# PRODUCTION
+###################
+
+FROM node:18-alpine3.16 As production
+
+# Copy package.json to be able to execute migration command
+COPY --chown=node:node package*.json ./
+
+# Copy the bundled code from the build stage to the production image
+COPY --chown=node:node --from=build /usr/src/app/node_modules ./node_modules
+COPY --chown=node:node --from=build /usr/src/app/prisma ./prisma
+COPY --chown=node:node --from=build /usr/src/app/dist ./dist
+
+# Start the server using the production build
+CMD [ "node", "dist/main.js" ]
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d3e9117
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,661 @@
+  GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  Developers that use our General Public Licenses protect your rights
+with two steps: (1) assert copyright on the software, and (2) offer
+you this License which gives you legal permission to copy, distribute
+and/or modify the software.
+
+  A secondary benefit of defending all users' freedom is that
+improvements made in alternate versions of the program, if they
+receive widespread use, become available for other developers to
+incorporate.  Many developers of free software are heartened and
+encouraged by the resulting cooperation.  However, in the case of
+software used on network servers, this result may fail to come about.
+The GNU General Public License permits making a modified version and
+letting the public access it on a server without ever releasing its
+source code to the public.
+
+  The GNU Affero General Public License is designed specifically to
+ensure that, in such cases, the modified source code becomes available
+to the community.  It requires the operator of a network server to
+provide the source code of the modified version running there to the
+users of that server.  Therefore, public use of a modified version, on
+a publicly accessible server, gives the public access to the source
+code of the modified version.
+
+  An older license, called the Affero General Public License and
+published by Affero, was designed to accomplish similar goals.  This is
+a different license, not a version of the Affero GPL, but Affero has
+released a new version of the Affero GPL which permits relicensing under
+this license.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
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+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Remote Network Interaction; Use with the GNU General Public License.
+
+  Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    Mobicoop Interop
+    Copyright (C) 2022  Mobicoop / V3
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.
diff --git a/ci/.env.ci b/ci/.env.ci
new file mode 100644
index 0000000..bc9fdb7
--- /dev/null
+++ b/ci/.env.ci
@@ -0,0 +1,15 @@
+# SERVICE
+SERVICE_URL=0.0.0.0
+SERVICE_PORT=5001
+
+# PRISMA
+DATABASE_URL="postgresql://user:user@db:5432/user?schema=public"
+
+# RABBIT MQ
+RMQ_URI=amqp://broker:5672
+
+# MESSAGE BROKER
+BROKER_IMAGE=rabbitmq:3-alpine
+
+# POSTGRES
+POSTGRES_IMAGE=postgres:15.0
diff --git a/ci/Dockerfile b/ci/Dockerfile
new file mode 100644
index 0000000..4b2a20c
--- /dev/null
+++ b/ci/Dockerfile
@@ -0,0 +1,29 @@
+###################
+# BUILD FOR CI TESTING
+###################
+
+FROM node:18-alpine3.16
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# A wildcard is used to ensure both package.json AND package-lock.json are copied
+COPY package*.json ./
+
+# Install app dependencies
+RUN npm ci
+
+# Bundle app source
+COPY . .
+
+# Generate prisma client
+RUN npx prisma generate
+
+# Create a "dist" folder
+RUN npm run build
+
+# Run unit tests
+RUN npm run test:unit:ci
+
+# Start the server
+CMD [ "node", "dist/main.js" ]
diff --git a/ci/wait-up.sh b/ci/wait-up.sh
new file mode 100644
index 0000000..50146ef
--- /dev/null
+++ b/ci/wait-up.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+testlog() {
+	docker logs v3-configuration-db-test | grep -q "database system is ready to accept connections"
+}
+
+testlog 2> /dev/null
+while [ $? -ne 0 ];
+do
+    sleep 5
+    echo "Waiting for Test DB to be up..."
+	testlog 2> /dev/null
+done
diff --git a/docker-compose.ci.yml b/docker-compose.ci.yml
new file mode 100644
index 0000000..2e41f0c
--- /dev/null
+++ b/docker-compose.ci.yml
@@ -0,0 +1,41 @@
+version: '3.8'
+
+services:
+  api:
+    container_name: v3-configuration
+    build:
+      dockerfile: ci/Dockerfile
+      context: .
+    env_file:
+      - ci/.env.ci
+    ports:
+      - 5003:5003
+    depends_on:
+      - db
+      - broker
+    networks:
+      - v3-network
+
+  db:
+    container_name: v3-configuration-db-test
+    image: ${POSTGRES_IMAGE}
+    environment:
+      POSTGRES_DB: configuration
+      POSTGRES_USER: configuration
+      POSTGRES_PASSWORD: configuration
+    ports:
+      - 5603:5432
+    networks:
+      - v3-network
+
+  broker:
+    container_name: v3-broker
+    image: ${BROKER_IMAGE}
+    ports:
+      - 5672:5672
+    networks:
+      - v3-network
+
+networks:
+  v3-network:
+    name: v3-network
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..7f2a7a0
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,57 @@
+version: '3.8'
+
+services:
+  api:
+    container_name: v3-configuration
+    build:
+      dockerfile: Dockerfile
+      context: .
+      target: development
+    volumes:
+      - .:/usr/src/app
+    env_file:
+      - .env
+    command: npm run start:dev
+    ports:
+      - ${SERVICE_PORT:-5003}:${SERVICE_PORT:-5003}
+    depends_on:
+      - db
+    networks:
+      v3-network:
+        aliases:
+          - v3-configuration-api
+
+  db:
+    container_name: v3-configuration-db
+    image: ${POSTGRES_IMAGE}
+    environment:
+      POSTGRES_DB: configuration
+      POSTGRES_USER: configuration
+      POSTGRES_PASSWORD: configuration
+    ports:
+      - 5503:5432
+    volumes:
+      - .postgresql:/var/lib/postgresql/data:rw
+    networks:
+      v3-network:
+        aliases:
+          - v3-configuration-db
+
+  db-test:
+    container_name: v3-configuration-db-test
+    image: ${POSTGRES_IMAGE}
+    environment:
+      POSTGRES_DB: configuration
+      POSTGRES_USER: configuration
+      POSTGRES_PASSWORD: configuration
+    ports:
+      - 5603:5432
+    networks:
+      v3-network:
+        aliases:
+          - v3-configuration-db-test
+
+networks:
+  v3-network:
+    name: v3-network
+    external: true
diff --git a/test/jest-e2e.json b/jest-e2e.json
similarity index 100%
rename from test/jest-e2e.json
rename to jest-e2e.json
diff --git a/nest-cli.json b/nest-cli.json
index 2566481..5142bb1 100644
--- a/nest-cli.json
+++ b/nest-cli.json
@@ -1,5 +1,9 @@
 {
   "$schema": "https://json.schemastore.org/nest-cli",
   "collection": "@nestjs/schematics",
-  "sourceRoot": "src"
+  "sourceRoot": "src",
+  "compilerOptions": {
+    "assets": ["**/*.proto"],
+    "watchAssets": true
+  }
 }
diff --git a/package-lock.json b/package-lock.json
index bcdee19..1b02548 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,17 +1,28 @@
 {
-  "name": "configuration",
+  "name": "@mobicoop/configuration",
   "version": "0.0.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
-      "name": "configuration",
+      "name": "@mobicoop/configuration",
       "version": "0.0.1",
-      "license": "UNLICENSED",
+      "license": "AGPL",
       "dependencies": {
+        "@automapper/classes": "^8.7.7",
+        "@automapper/core": "^8.7.7",
+        "@automapper/nestjs": "^8.7.7",
+        "@grpc/grpc-js": "^1.8.5",
+        "@grpc/proto-loader": "^0.7.4",
         "@nestjs/common": "^9.0.0",
+        "@nestjs/config": "^2.2.0",
         "@nestjs/core": "^9.0.0",
+        "@nestjs/cqrs": "^9.0.1",
+        "@nestjs/microservices": "^9.2.1",
         "@nestjs/platform-express": "^9.0.0",
+        "@prisma/client": "^4.9.0",
+        "class-transformer": "^0.5.1",
+        "class-validator": "^0.14.0",
         "reflect-metadata": "^0.1.13",
         "rimraf": "^3.0.2",
         "rxjs": "^7.2.0"
@@ -31,6 +42,7 @@
         "eslint-plugin-prettier": "^4.0.0",
         "jest": "28.1.3",
         "prettier": "^2.3.2",
+        "prisma": "^4.9.0",
         "source-map-support": "^0.5.20",
         "supertest": "^6.1.3",
         "ts-jest": "28.0.8",
@@ -197,6 +209,39 @@
       "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==",
       "dev": true
     },
+    "node_modules/@automapper/classes": {
+      "version": "8.7.7",
+      "resolved": "https://registry.npmjs.org/@automapper/classes/-/classes-8.7.7.tgz",
+      "integrity": "sha512-FSbvt6QE8XnhKKQZA3kpKLuLrr9x1iW+lNYTrawVLjxQ05zsCGccLxe7moMNrg1wFAVAouQKupFgCGQ7XRjmJw==",
+      "engines": {
+        "node": ">=14.0.0"
+      },
+      "peerDependencies": {
+        "@automapper/core": "8.7.7",
+        "reflect-metadata": "~0.1.13"
+      }
+    },
+    "node_modules/@automapper/core": {
+      "version": "8.7.7",
+      "resolved": "https://registry.npmjs.org/@automapper/core/-/core-8.7.7.tgz",
+      "integrity": "sha512-YfpDJ/xqwUuC0S+BLNk81ZJfeL7CmjirUX/Gk9eQyx146DKvneBZgeZ9v5rDB51Ti14jTxVHis+5JuT7W/q0TA==",
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
+    "node_modules/@automapper/nestjs": {
+      "version": "8.7.7",
+      "resolved": "https://registry.npmjs.org/@automapper/nestjs/-/nestjs-8.7.7.tgz",
+      "integrity": "sha512-9/uYY2cmN7SJjr2QxnfyXsteHrn/RHD+Dg0VMBflzK/e8Bh/KWyOve7+kaFixlUoyHe44aXs2LVaCslqt8wnhQ==",
+      "engines": {
+        "node": ">=14.0.0"
+      },
+      "peerDependencies": {
+        "@automapper/core": "8.7.7",
+        "@nestjs/common": "^7.0.0 || ^8.0.0 || ^9.0.0",
+        "@nestjs/core": "^7.0.0 || ^8.0.0  || ^9.0.0"
+      }
+    },
     "node_modules/@babel/code-frame": {
       "version": "7.18.6",
       "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.18.6.tgz",
@@ -852,6 +897,71 @@
       "integrity": "sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==",
       "dev": true
     },
+    "node_modules/@grpc/grpc-js": {
+      "version": "1.8.5",
+      "resolved": "https://registry.npmjs.org/@grpc/grpc-js/-/grpc-js-1.8.5.tgz",
+      "integrity": "sha512-+hpNMAz+RdeckGdGRSHj8gjBEv8crcrTZjsagOZtYqCoWu4JXuNqRlxniwxhKFWxNrxZpSMQLmAjIkoDIgFjyQ==",
+      "dependencies": {
+        "@grpc/proto-loader": "^0.7.0",
+        "@types/node": ">=12.12.47"
+      },
+      "engines": {
+        "node": "^8.13.0 || >=10.10.0"
+      }
+    },
+    "node_modules/@grpc/proto-loader": {
+      "version": "0.7.4",
+      "resolved": "https://registry.npmjs.org/@grpc/proto-loader/-/proto-loader-0.7.4.tgz",
+      "integrity": "sha512-MnWjkGwqQ3W8fx94/c1CwqLsNmHHv2t0CFn+9++6+cDphC1lolpg9M2OU0iebIjK//pBNX9e94ho+gjx6vz39w==",
+      "dependencies": {
+        "@types/long": "^4.0.1",
+        "lodash.camelcase": "^4.3.0",
+        "long": "^4.0.0",
+        "protobufjs": "^7.0.0",
+        "yargs": "^16.2.0"
+      },
+      "bin": {
+        "proto-loader-gen-types": "build/bin/proto-loader-gen-types.js"
+      },
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/@grpc/proto-loader/node_modules/cliui": {
+      "version": "7.0.4",
+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-7.0.4.tgz",
+      "integrity": "sha512-OcRE68cOsVMXp1Yvonl/fzkQOyjLSu/8bhPDfQt0e0/Eb283TKP20Fs2MqoPsr9SwA595rRCA+QMzYc9nBP+JQ==",
+      "dependencies": {
+        "string-width": "^4.2.0",
+        "strip-ansi": "^6.0.0",
+        "wrap-ansi": "^7.0.0"
+      }
+    },
+    "node_modules/@grpc/proto-loader/node_modules/yargs": {
+      "version": "16.2.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-16.2.0.tgz",
+      "integrity": "sha512-D1mvvtDG0L5ft/jGWkLpG1+m0eQxOfaBvTNELraWj22wSVUMWxZUvYgJYcKh6jGGIkJFhH4IZPQhR4TKpc8mBw==",
+      "dependencies": {
+        "cliui": "^7.0.2",
+        "escalade": "^3.1.1",
+        "get-caller-file": "^2.0.5",
+        "require-directory": "^2.1.1",
+        "string-width": "^4.2.0",
+        "y18n": "^5.0.5",
+        "yargs-parser": "^20.2.2"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/@grpc/proto-loader/node_modules/yargs-parser": {
+      "version": "20.2.9",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.9.tgz",
+      "integrity": "sha512-y11nGElTIV+CT3Zv9t7VKl+Q3hTQoT9a1Qzezhhl6Rp21gJ/IVTW7Z3y9EWXhuUBC2Shnf+DX0antecpAwSP8w==",
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/@humanwhocodes/config-array": {
       "version": "0.11.8",
       "resolved": "https://registry.npmjs.org/@humanwhocodes/config-array/-/config-array-0.11.8.tgz",
@@ -1559,6 +1669,30 @@
         }
       }
     },
+    "node_modules/@nestjs/config": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/@nestjs/config/-/config-2.2.0.tgz",
+      "integrity": "sha512-78Eg6oMbCy3D/YvqeiGBTOWei1Jwi3f2pSIZcZ1QxY67kYsJzTRTkwRT8Iv30DbK0sGKc1mcloDLD5UXgZAZtg==",
+      "dependencies": {
+        "dotenv": "16.0.1",
+        "dotenv-expand": "8.0.3",
+        "lodash": "4.17.21",
+        "uuid": "8.3.2"
+      },
+      "peerDependencies": {
+        "@nestjs/common": "^7.0.0 || ^8.0.0 || ^9.0.0",
+        "reflect-metadata": "^0.1.13",
+        "rxjs": "^6.0.0 || ^7.2.0"
+      }
+    },
+    "node_modules/@nestjs/config/node_modules/uuid": {
+      "version": "8.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+      "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+      "bin": {
+        "uuid": "dist/bin/uuid"
+      }
+    },
     "node_modules/@nestjs/core": {
       "version": "9.2.1",
       "resolved": "https://registry.npmjs.org/@nestjs/core/-/core-9.2.1.tgz",
@@ -1597,6 +1731,85 @@
         }
       }
     },
+    "node_modules/@nestjs/cqrs": {
+      "version": "9.0.1",
+      "resolved": "https://registry.npmjs.org/@nestjs/cqrs/-/cqrs-9.0.1.tgz",
+      "integrity": "sha512-DsqkAaIHy9+Ot4FJybmlDQk0HBDTGztz0F3LcMnatFDQv1X56W0Y2+R/7jjwHsmHzQfbffT2FGyCOx2/9apFCg==",
+      "dependencies": {
+        "uuid": "8.3.2"
+      },
+      "peerDependencies": {
+        "@nestjs/common": "^9.0.0",
+        "@nestjs/core": "^9.0.0",
+        "reflect-metadata": "0.1.13",
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       "version": "1.0.3",
@@ -11562,8 +12173,7 @@
     "get-caller-file": {
       "version": "2.0.5",
       "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
-      "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==",
-      "dev": true
+      "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg=="
     },
     "get-intrinsic": {
       "version": "1.2.0",
@@ -11850,8 +12460,7 @@
     "is-fullwidth-code-point": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
-      "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==",
-      "dev": true
+      "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg=="
     },
     "is-generator-fn": {
       "version": "2.1.0",
@@ -12666,6 +13275,11 @@
         "type-check": "~0.4.0"
       }
     },
+    "libphonenumber-js": {
+      "version": "1.10.18",
+      "resolved": "https://registry.npmjs.org/libphonenumber-js/-/libphonenumber-js-1.10.18.tgz",
+      "integrity": "sha512-NS4ZEgNhwbcPz1gfSXCGFnQm0xEiyTSPRthIuWytDzOiEG9xnZ2FbLyfJC4tI2BMAAXpoWbNxHYH75pa3Dq9og=="
+    },
     "lines-and-columns": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/lines-and-columns/-/lines-and-columns-1.2.4.tgz",
@@ -12690,8 +13304,12 @@
     "lodash": {
       "version": "4.17.21",
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
-      "dev": true
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+    },
+    "lodash.camelcase": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/lodash.camelcase/-/lodash.camelcase-4.3.0.tgz",
+      "integrity": "sha512-TwuEnCnxbc3rAvhf/LbG7tJUDzhqXyFnv3dtzLOPgCG/hODL7WFnsbwktkD7yUV0RrreP/l1PALq/YSg6VvjlA=="
     },
     "lodash.memoize": {
       "version": "4.1.2",
@@ -12727,6 +13345,11 @@
         }
       }
     },
+    "long": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/long/-/long-4.0.0.tgz",
+      "integrity": "sha512-XsP+KhQif4bjX1kbuSiySJFNAehNxgLb6hPRGJ9QsUr8ajHkuXGdrHmFUTUUXhDwVX2R5bY4JNZEwbUiMhV+MA=="
+    },
     "lru-cache": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-5.1.1.tgz",
@@ -13269,6 +13892,15 @@
         }
       }
     },
+    "prisma": {
+      "version": "4.9.0",
+      "resolved": "https://registry.npmjs.org/prisma/-/prisma-4.9.0.tgz",
+      "integrity": "sha512-bS96oZ5oDFXYgoF2l7PJ3Mp1wWWfLOo8B/jAfbA2Pn0Wm5Z/owBHzaMQKS3i1CzVBDWWPVnOohmbJmjvkcHS5w==",
+      "devOptional": true,
+      "requires": {
+        "@prisma/engines": "4.9.0"
+      }
+    },
     "process-nextick-args": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
@@ -13284,6 +13916,32 @@
         "sisteransi": "^1.0.5"
       }
     },
+    "protobufjs": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/protobufjs/-/protobufjs-7.2.0.tgz",
+      "integrity": "sha512-hYCqTDuII4iJ4stZqiuGCSU8xxWl5JeXYpwARGtn/tWcKCAro6h3WQz+xpsNbXW0UYqpmTQFEyFWO0G0Kjt64g==",
+      "requires": {
+        "@protobufjs/aspromise": "^1.1.2",
+        "@protobufjs/base64": "^1.1.2",
+        "@protobufjs/codegen": "^2.0.4",
+        "@protobufjs/eventemitter": "^1.1.0",
+        "@protobufjs/fetch": "^1.1.0",
+        "@protobufjs/float": "^1.0.2",
+        "@protobufjs/inquire": "^1.1.0",
+        "@protobufjs/path": "^1.1.2",
+        "@protobufjs/pool": "^1.1.0",
+        "@protobufjs/utf8": "^1.1.0",
+        "@types/node": ">=13.7.0",
+        "long": "^5.0.0"
+      },
+      "dependencies": {
+        "long": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/long/-/long-5.2.1.tgz",
+          "integrity": "sha512-GKSNGeNAtw8IryjjkhZxuKB3JzlcLTwjtiQCHKvqQet81I93kXslhDQruGI/QsddO83mcDToBVy7GqGS/zYf/A=="
+        }
+      }
+    },
     "proxy-addr": {
       "version": "2.0.7",
       "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.7.tgz",
@@ -13407,8 +14065,7 @@
     "require-directory": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
-      "integrity": "sha512-fGxEI7+wsG9xrvdjsrlmL22OMTTiHRwAMroiEeMgq8gzoLC/PQr7RsRDSTLUg/bZAZtF+TVIkHc6/4RIKrui+Q==",
-      "dev": true
+      "integrity": "sha512-fGxEI7+wsG9xrvdjsrlmL22OMTTiHRwAMroiEeMgq8gzoLC/PQr7RsRDSTLUg/bZAZtF+TVIkHc6/4RIKrui+Q=="
     },
     "require-from-string": {
       "version": "2.0.2",
@@ -13790,7 +14447,6 @@
       "version": "4.2.3",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
       "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
-      "dev": true,
       "requires": {
         "emoji-regex": "^8.0.0",
         "is-fullwidth-code-point": "^3.0.0",
@@ -13801,7 +14457,6 @@
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
       "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
-      "dev": true,
       "requires": {
         "ansi-regex": "^5.0.1"
       }
@@ -14258,6 +14913,11 @@
         "convert-source-map": "^1.6.0"
       }
     },
+    "validator": {
+      "version": "13.7.0",
+      "resolved": "https://registry.npmjs.org/validator/-/validator-13.7.0.tgz",
+      "integrity": "sha512-nYXQLCBkpJ8X6ltALua9dRrZDHVYxjJ1wgskNt1lH9fzGjs3tgojGSCBjmEPwkWS1y29+DrizMTW19Pr9uB2nw=="
+    },
     "vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
@@ -14411,7 +15071,6 @@
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
       "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==",
-      "dev": true,
       "requires": {
         "ansi-styles": "^4.0.0",
         "string-width": "^4.1.0",
@@ -14441,8 +15100,7 @@
     "y18n": {
       "version": "5.0.8",
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
-      "integrity": "sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA==",
-      "dev": true
+      "integrity": "sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA=="
     },
     "yallist": {
       "version": "3.1.1",
diff --git a/package.json b/package.json
index 380cb45..eb9fdae 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,10 @@
 {
-  "name": "configuration",
+  "name": "@mobicoop/configuration",
   "version": "0.0.1",
-  "description": "",
-  "author": "",
+  "description": "Mobicoop V3 Configuration Service",
+  "author": "sbriat",
   "private": true,
-  "license": "UNLICENSED",
+  "license": "AGPL",
   "scripts": {
     "prebuild": "rimraf dist",
     "build": "nest build",
@@ -14,16 +14,33 @@
     "start:debug": "nest start --debug --watch",
     "start:prod": "node dist/main",
     "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
-    "test": "jest",
-    "test:watch": "jest --watch",
-    "test:cov": "jest --coverage",
-    "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
-    "test:e2e": "jest --config ./test/jest-e2e.json"
+    "test": "npm run migrate:test && dotenv -e .env.test jest",
+    "test:unit": "jest --testPathPattern 'tests/unit/' --verbose",
+    "test:unit:ci": "jest --testPathPattern 'tests/unit/' --coverage",
+    "test:integration": "npm run migrate:test && dotenv -e .env.test -- jest --testPathPattern 'tests/integration/' --verbose",
+    "test:integration:ci": "npm run migrate:test:ci && dotenv -e ci/.env.ci -- jest --testPathPattern 'tests/integration/'",
+    "test:cov": "jest --testPathPattern 'tests/unit/' --coverage",
+    "test:e2e": "jest --config ./test/jest-e2e.json",
+    "generate": "docker exec v3-configuration sh -c 'npx prisma generate'",
+    "migrate": "docker exec v3-configuration sh -c 'npx prisma migrate dev'",
+    "migrate:test": "dotenv -e .env.test -- npx prisma migrate deploy",
+    "migrate:test:ci": "dotenv -e ci/.env.ci -- npx prisma migrate deploy"
   },
   "dependencies": {
+    "@automapper/classes": "^8.7.7",
+    "@automapper/core": "^8.7.7",
+    "@automapper/nestjs": "^8.7.7",
+    "@grpc/grpc-js": "^1.8.5",
+    "@grpc/proto-loader": "^0.7.4",
     "@nestjs/common": "^9.0.0",
+    "@nestjs/config": "^2.2.0",
     "@nestjs/core": "^9.0.0",
+    "@nestjs/cqrs": "^9.0.1",
+    "@nestjs/microservices": "^9.2.1",
     "@nestjs/platform-express": "^9.0.0",
+    "@prisma/client": "^4.9.0",
+    "class-transformer": "^0.5.1",
+    "class-validator": "^0.14.0",
     "reflect-metadata": "^0.1.13",
     "rimraf": "^3.0.2",
     "rxjs": "^7.2.0"
@@ -43,6 +60,7 @@
     "eslint-plugin-prettier": "^4.0.0",
     "jest": "28.1.3",
     "prettier": "^2.3.2",
+    "prisma": "^4.9.0",
     "source-map-support": "^0.5.20",
     "supertest": "^6.1.3",
     "ts-jest": "28.0.8",
@@ -57,6 +75,11 @@
       "json",
       "ts"
     ],
+    "modulePathIgnorePatterns": [
+      ".controller.ts",
+      ".module.ts",
+      "main.ts"
+    ],
     "rootDir": "src",
     "testRegex": ".*\\.spec\\.ts$",
     "transform": {
diff --git a/prisma/migrations/20230125112738_init/migration.sql b/prisma/migrations/20230125112738_init/migration.sql
new file mode 100644
index 0000000..ee7399b
--- /dev/null
+++ b/prisma/migrations/20230125112738_init/migration.sql
@@ -0,0 +1,17 @@
+-- CreateEnum
+CREATE TYPE "Domain" AS ENUM ('USER');
+
+-- CreateTable
+CREATE TABLE "configuration" (
+    "uuid" UUID NOT NULL,
+    "domain" "Domain" NOT NULL,
+    "key" TEXT NOT NULL,
+    "value" TEXT NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "configuration_pkey" PRIMARY KEY ("uuid")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "configuration_domain_key_key" ON "configuration"("domain", "key");
diff --git a/prisma/migrations/migration_lock.toml b/prisma/migrations/migration_lock.toml
new file mode 100644
index 0000000..fbffa92
--- /dev/null
+++ b/prisma/migrations/migration_lock.toml
@@ -0,0 +1,3 @@
+# Please do not edit this file manually
+# It should be added in your version-control system (i.e. Git)
+provider = "postgresql"
\ No newline at end of file
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
new file mode 100644
index 0000000..fc5c0b6
--- /dev/null
+++ b/prisma/schema.prisma
@@ -0,0 +1,27 @@
+// This is your Prisma schema file,
+// learn more about it in the docs: https://pris.ly/d/prisma-schema
+
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "postgresql"
+  url      = env("DATABASE_URL")
+}
+
+model Configuration {
+  uuid      String   @id @default(uuid()) @db.Uuid
+  domain    Domain
+  key       String
+  value     String
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  @@unique([domain, key])
+  @@map("configuration")
+}
+
+enum Domain {
+  USER
+}
diff --git a/src/app.controller.spec.ts b/src/app.controller.spec.ts
deleted file mode 100644
index d22f389..0000000
--- a/src/app.controller.spec.ts
+++ /dev/null
@@ -1,22 +0,0 @@
-import { Test, TestingModule } from '@nestjs/testing';
-import { AppController } from './app.controller';
-import { AppService } from './app.service';
-
-describe('AppController', () => {
-  let appController: AppController;
-
-  beforeEach(async () => {
-    const app: TestingModule = await Test.createTestingModule({
-      controllers: [AppController],
-      providers: [AppService],
-    }).compile();
-
-    appController = app.get<AppController>(AppController);
-  });
-
-  describe('root', () => {
-    it('should return "Hello World!"', () => {
-      expect(appController.getHello()).toBe('Hello World!');
-    });
-  });
-});
diff --git a/src/app.controller.ts b/src/app.controller.ts
deleted file mode 100644
index cce879e..0000000
--- a/src/app.controller.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-import { Controller, Get } from '@nestjs/common';
-import { AppService } from './app.service';
-
-@Controller()
-export class AppController {
-  constructor(private readonly appService: AppService) {}
-
-  @Get()
-  getHello(): string {
-    return this.appService.getHello();
-  }
-}
diff --git a/src/app.module.ts b/src/app.module.ts
index 8662803..31d35cd 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -1,10 +1,16 @@
+import { classes } from '@automapper/classes';
+import { AutomapperModule } from '@automapper/nestjs';
 import { Module } from '@nestjs/common';
-import { AppController } from './app.controller';
-import { AppService } from './app.service';
+import { ConfigModule } from '@nestjs/config';
+import { ConfigurationModule } from './modules/configuration/configuration.module';
 
 @Module({
-  imports: [],
-  controllers: [AppController],
-  providers: [AppService],
+  imports: [
+    ConfigModule.forRoot({ isGlobal: true }),
+    AutomapperModule.forRoot({ strategyInitializer: classes() }),
+    ConfigurationModule,
+  ],
+  controllers: [],
+  providers: [],
 })
 export class AppModule {}
diff --git a/src/app.service.ts b/src/app.service.ts
deleted file mode 100644
index 927d7cc..0000000
--- a/src/app.service.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-import { Injectable } from '@nestjs/common';
-
-@Injectable()
-export class AppService {
-  getHello(): string {
-    return 'Hello World!';
-  }
-}
diff --git a/src/main.ts b/src/main.ts
index 13cad38..db4f1f8 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,8 +1,24 @@
 import { NestFactory } from '@nestjs/core';
+import { MicroserviceOptions, Transport } from '@nestjs/microservices';
+import { join } from 'path';
 import { AppModule } from './app.module';
 
 async function bootstrap() {
-  const app = await NestFactory.create(AppModule);
-  await app.listen(3000);
+  const app = await NestFactory.createMicroservice<MicroserviceOptions>(
+    AppModule,
+    {
+      transport: Transport.GRPC,
+      options: {
+        package: 'configuration',
+        protoPath: join(
+          __dirname,
+          'modules/configuration/adapters/primaries/configuration.proto',
+        ),
+        url: process.env.SERVICE_URL + ':' + process.env.SERVICE_PORT,
+        loader: { keepCase: true },
+      },
+    },
+  );
+  await app.listen();
 }
 bootstrap();
diff --git a/src/modules/configuration/adapters/primaries/configuration.controller.ts b/src/modules/configuration/adapters/primaries/configuration.controller.ts
new file mode 100644
index 0000000..a83d4c6
--- /dev/null
+++ b/src/modules/configuration/adapters/primaries/configuration.controller.ts
@@ -0,0 +1,144 @@
+import { Mapper } from '@automapper/core';
+import { InjectMapper } from '@automapper/nestjs';
+import { Controller, UsePipes } from '@nestjs/common';
+import { CommandBus, QueryBus } from '@nestjs/cqrs';
+import { GrpcMethod, RpcException } from '@nestjs/microservices';
+import { DatabaseException } from 'src/modules/database/src/exceptions/database.exception';
+import { ICollection } from 'src/modules/database/src/interfaces/collection.interface';
+import { RpcValidationPipe } from 'src/utils/pipes/rpc.validation-pipe';
+import { CreateConfigurationCommand } from '../../commands/create-configuration.command';
+import { DeleteConfigurationCommand } from '../../commands/delete-configuration.command';
+import { UpdateConfigurationCommand } from '../../commands/update-configuration.command';
+import { CreateConfigurationRequest } from '../../domain/dtos/create-configuration.request';
+import { FindAllConfigurationsRequest } from '../../domain/dtos/find-all-configurations.request';
+import { FindConfigurationByUuidRequest } from '../../domain/dtos/find-configuration-by-uuid.request';
+import { UpdateConfigurationRequest } from '../../domain/dtos/update-configuration.request';
+import { Configuration } from '../../domain/entities/configuration';
+import { FindAllConfigurationsQuery } from '../../queries/find-all-configurations.query';
+import { FindConfigurationByUuidQuery } from '../../queries/find-configuration-by-uuid.query';
+import { ConfigurationPresenter } from './configuration.presenter';
+
+@UsePipes(
+  new RpcValidationPipe({
+    whitelist: true,
+    forbidUnknownValues: false,
+  }),
+)
+@Controller()
+export class ConfigurationController {
+  constructor(
+    private readonly _commandBus: CommandBus,
+    private readonly _queryBus: QueryBus,
+    @InjectMapper() private readonly _mapper: Mapper,
+  ) {}
+
+  @GrpcMethod('ConfigurationService', 'FindAll')
+  async findAll(
+    data: FindAllConfigurationsRequest,
+  ): Promise<ICollection<Configuration>> {
+    const configurationCollection = await this._queryBus.execute(
+      new FindAllConfigurationsQuery(data),
+    );
+    return Promise.resolve({
+      data: configurationCollection.data.map((configuration: Configuration) =>
+        this._mapper.map(configuration, Configuration, ConfigurationPresenter),
+      ),
+      total: configurationCollection.total,
+    });
+  }
+
+  @GrpcMethod('ConfigurationService', 'FindOneByUuid')
+  async findOneByUuid(
+    data: FindConfigurationByUuidRequest,
+  ): Promise<ConfigurationPresenter> {
+    try {
+      const configuration = await this._queryBus.execute(
+        new FindConfigurationByUuidQuery(data),
+      );
+      return this._mapper.map(
+        configuration,
+        Configuration,
+        ConfigurationPresenter,
+      );
+    } catch (error) {
+      throw new RpcException({
+        code: 5,
+        message: 'Configuration not found',
+      });
+    }
+  }
+
+  @GrpcMethod('ConfigurationService', 'Create')
+  async createConfiguration(
+    data: CreateConfigurationRequest,
+  ): Promise<ConfigurationPresenter> {
+    try {
+      const configuration = await this._commandBus.execute(
+        new CreateConfigurationCommand(data),
+      );
+      return this._mapper.map(
+        configuration,
+        Configuration,
+        ConfigurationPresenter,
+      );
+    } catch (e) {
+      if (e instanceof DatabaseException) {
+        if (e.message.includes('Already exists')) {
+          throw new RpcException({
+            code: 6,
+            message: 'Configuration already exists',
+          });
+        }
+      }
+      throw new RpcException({});
+    }
+  }
+
+  @GrpcMethod('ConfigurationService', 'Update')
+  async updateConfiguration(
+    data: UpdateConfigurationRequest,
+  ): Promise<ConfigurationPresenter> {
+    try {
+      const configuration = await this._commandBus.execute(
+        new UpdateConfigurationCommand(data),
+      );
+
+      return this._mapper.map(
+        configuration,
+        Configuration,
+        ConfigurationPresenter,
+      );
+    } catch (e) {
+      if (e instanceof DatabaseException) {
+        if (e.message.includes('not found')) {
+          throw new RpcException({
+            code: 5,
+            message: 'Configuration not found',
+          });
+        }
+      }
+      throw new RpcException({});
+    }
+  }
+
+  @GrpcMethod('ConfigurationService', 'Delete')
+  async deleteConfiguration(
+    data: FindConfigurationByUuidRequest,
+  ): Promise<void> {
+    try {
+      await this._commandBus.execute(new DeleteConfigurationCommand(data.uuid));
+
+      return Promise.resolve();
+    } catch (e) {
+      if (e instanceof DatabaseException) {
+        if (e.message.includes('not found')) {
+          throw new RpcException({
+            code: 5,
+            message: 'Configuration not found',
+          });
+        }
+      }
+      throw new RpcException({});
+    }
+  }
+}
diff --git a/src/modules/configuration/adapters/primaries/configuration.presenter.ts b/src/modules/configuration/adapters/primaries/configuration.presenter.ts
new file mode 100644
index 0000000..6846d40
--- /dev/null
+++ b/src/modules/configuration/adapters/primaries/configuration.presenter.ts
@@ -0,0 +1,6 @@
+import { AutoMap } from '@automapper/classes';
+
+export class ConfigurationPresenter {
+  @AutoMap()
+  value: string;
+}
diff --git a/src/modules/configuration/adapters/primaries/configuration.proto b/src/modules/configuration/adapters/primaries/configuration.proto
new file mode 100644
index 0000000..0397587
--- /dev/null
+++ b/src/modules/configuration/adapters/primaries/configuration.proto
@@ -0,0 +1,38 @@
+syntax = "proto3";
+
+package configuration;
+
+service ConfigurationService {
+  rpc FindOneByUuid(ConfigurationByUuid) returns (Configuration);
+  rpc FindAll(ConfigurationFilter) returns (Configurations);
+  rpc Create(Configuration) returns (Configuration);
+  rpc Update(Configuration) returns (Configuration);
+  rpc Delete(ConfigurationByUuid) returns (Empty);
+}
+
+message ConfigurationByUuid {
+  string uuid = 1;
+}
+
+message Configuration {
+  string uuid = 1;
+  Domain domain = 2;
+  string key = 3;
+  string value = 4;
+}
+
+enum Domain {
+  user = 0;
+}
+
+message ConfigurationFilter {
+  optional int32 page = 1;
+  optional int32 perPage = 2;
+}
+
+message Configurations {
+  repeated Configuration data = 1;
+  int32 total = 2;
+}
+
+message Empty {}
diff --git a/src/modules/configuration/adapters/secondaries/configuration.repository.ts b/src/modules/configuration/adapters/secondaries/configuration.repository.ts
new file mode 100644
index 0000000..5259497
--- /dev/null
+++ b/src/modules/configuration/adapters/secondaries/configuration.repository.ts
@@ -0,0 +1,8 @@
+import { Injectable } from '@nestjs/common';
+import { ConfigRepository } from '../../../database/src/domain/configuration.repository';
+import { Configuration } from '../../domain/entities/configuration';
+
+@Injectable()
+export class ConfigurationRepository extends ConfigRepository<Configuration> {
+  protected _model = 'configuration';
+}
diff --git a/src/modules/configuration/commands/create-configuration.command.ts b/src/modules/configuration/commands/create-configuration.command.ts
new file mode 100644
index 0000000..2cd2ff3
--- /dev/null
+++ b/src/modules/configuration/commands/create-configuration.command.ts
@@ -0,0 +1,9 @@
+import { CreateConfigurationRequest } from '../domain/dtos/create-configuration.request';
+
+export class CreateConfigurationCommand {
+  readonly createConfigurationRequest: CreateConfigurationRequest;
+
+  constructor(request: CreateConfigurationRequest) {
+    this.createConfigurationRequest = request;
+  }
+}
diff --git a/src/modules/configuration/commands/delete-configuration.command.ts b/src/modules/configuration/commands/delete-configuration.command.ts
new file mode 100644
index 0000000..772a897
--- /dev/null
+++ b/src/modules/configuration/commands/delete-configuration.command.ts
@@ -0,0 +1,7 @@
+export class DeleteConfigurationCommand {
+  readonly uuid: string;
+
+  constructor(uuid: string) {
+    this.uuid = uuid;
+  }
+}
diff --git a/src/modules/configuration/commands/update-configuration.command.ts b/src/modules/configuration/commands/update-configuration.command.ts
new file mode 100644
index 0000000..56d18b9
--- /dev/null
+++ b/src/modules/configuration/commands/update-configuration.command.ts
@@ -0,0 +1,9 @@
+import { UpdateConfigurationRequest } from '../domain/dtos/update-configuration.request';
+
+export class UpdateConfigurationCommand {
+  readonly updateConfigurationRequest: UpdateConfigurationRequest;
+
+  constructor(request: UpdateConfigurationRequest) {
+    this.updateConfigurationRequest = request;
+  }
+}
diff --git a/src/modules/configuration/configuration.module.ts b/src/modules/configuration/configuration.module.ts
new file mode 100644
index 0000000..ab63e64
--- /dev/null
+++ b/src/modules/configuration/configuration.module.ts
@@ -0,0 +1,14 @@
+import { Module } from '@nestjs/common';
+import { CqrsModule } from '@nestjs/cqrs';
+import { DatabaseModule } from '../database/database.module';
+import { ConfigRepository } from '../database/src/domain/configuration.repository';
+import { ConfigurationController } from './adapters/primaries/configuration.controller';
+import { ConfigurationProfile } from './mappers/configuration.profile';
+
+@Module({
+  imports: [DatabaseModule, CqrsModule],
+  exports: [],
+  controllers: [ConfigurationController],
+  providers: [ConfigurationProfile, ConfigRepository],
+})
+export class ConfigurationModule {}
diff --git a/src/modules/configuration/domain/dtos/create-configuration.request.ts b/src/modules/configuration/domain/dtos/create-configuration.request.ts
new file mode 100644
index 0000000..0e8b416
--- /dev/null
+++ b/src/modules/configuration/domain/dtos/create-configuration.request.ts
@@ -0,0 +1,25 @@
+import { AutoMap } from '@automapper/classes';
+import { IsEmail, IsNotEmpty, IsOptional, IsString } from 'class-validator';
+import { Domain } from './domain.enum';
+
+export class CreateConfigurationRequest {
+  @IsString()
+  @IsOptional()
+  @AutoMap()
+  uuid?: string;
+
+  @IsString()
+  @IsNotEmpty()
+  @AutoMap()
+  domain: Domain;
+
+  @IsString()
+  @IsNotEmpty()
+  @AutoMap()
+  key: string;
+
+  @IsEmail()
+  @IsNotEmpty()
+  @AutoMap()
+  value: string;
+}
diff --git a/src/modules/configuration/domain/dtos/domain.enum.ts b/src/modules/configuration/domain/dtos/domain.enum.ts
new file mode 100644
index 0000000..6cb9b92
--- /dev/null
+++ b/src/modules/configuration/domain/dtos/domain.enum.ts
@@ -0,0 +1,3 @@
+export enum Domain {
+  user = 'user',
+}
diff --git a/src/modules/configuration/domain/dtos/find-all-configurations.request.ts b/src/modules/configuration/domain/dtos/find-all-configurations.request.ts
new file mode 100644
index 0000000..e41015e
--- /dev/null
+++ b/src/modules/configuration/domain/dtos/find-all-configurations.request.ts
@@ -0,0 +1,11 @@
+import { IsInt, IsOptional } from 'class-validator';
+
+export class FindAllConfigurationsRequest {
+  @IsInt()
+  @IsOptional()
+  page?: number;
+
+  @IsInt()
+  @IsOptional()
+  perPage?: number;
+}
diff --git a/src/modules/configuration/domain/dtos/find-configuration-by-uuid.request.ts b/src/modules/configuration/domain/dtos/find-configuration-by-uuid.request.ts
new file mode 100644
index 0000000..d116c84
--- /dev/null
+++ b/src/modules/configuration/domain/dtos/find-configuration-by-uuid.request.ts
@@ -0,0 +1,7 @@
+import { IsNotEmpty, IsString } from 'class-validator';
+
+export class FindConfigurationByUuidRequest {
+  @IsString()
+  @IsNotEmpty()
+  uuid: string;
+}
diff --git a/src/modules/configuration/domain/dtos/update-configuration.request.ts b/src/modules/configuration/domain/dtos/update-configuration.request.ts
new file mode 100644
index 0000000..77ec611
--- /dev/null
+++ b/src/modules/configuration/domain/dtos/update-configuration.request.ts
@@ -0,0 +1,25 @@
+import { AutoMap } from '@automapper/classes';
+import { IsNotEmpty, IsOptional, IsString } from 'class-validator';
+import { Domain } from './domain.enum';
+
+export class UpdateConfigurationRequest {
+  @IsString()
+  @IsNotEmpty()
+  @AutoMap()
+  uuid: string;
+
+  @IsString()
+  @IsOptional()
+  @AutoMap()
+  domain?: Domain;
+
+  @IsString()
+  @IsOptional()
+  @AutoMap()
+  key?: string;
+
+  @IsString()
+  @IsOptional()
+  @AutoMap()
+  value?: string;
+}
diff --git a/src/modules/configuration/domain/entities/configuration.ts b/src/modules/configuration/domain/entities/configuration.ts
new file mode 100644
index 0000000..1b1d5a6
--- /dev/null
+++ b/src/modules/configuration/domain/entities/configuration.ts
@@ -0,0 +1,16 @@
+import { AutoMap } from '@automapper/classes';
+import { Domain } from '../dtos/domain.enum';
+
+export class Configuration {
+  @AutoMap()
+  uuid: string;
+
+  @AutoMap()
+  domain: Domain;
+
+  @AutoMap()
+  key: string;
+
+  @AutoMap()
+  value: string;
+}
diff --git a/src/modules/configuration/domain/usecases/create-configuration.usecase.ts b/src/modules/configuration/domain/usecases/create-configuration.usecase.ts
new file mode 100644
index 0000000..0ff0ffb
--- /dev/null
+++ b/src/modules/configuration/domain/usecases/create-configuration.usecase.ts
@@ -0,0 +1,30 @@
+import { Mapper } from '@automapper/core';
+import { InjectMapper } from '@automapper/nestjs';
+import { CommandHandler } from '@nestjs/cqrs';
+import { ConfigurationRepository } from '../../adapters/secondaries/configuration.repository';
+import { CreateConfigurationCommand } from '../../commands/create-configuration.command';
+import { CreateConfigurationRequest } from '../dtos/create-configuration.request';
+import { Configuration } from '../entities/configuration';
+
+@CommandHandler(CreateConfigurationCommand)
+export class CreateConfigurationUseCase {
+  constructor(
+    private readonly _repository: ConfigurationRepository,
+    @InjectMapper() private readonly _mapper: Mapper,
+  ) {}
+
+  async execute(command: CreateConfigurationCommand): Promise<Configuration> {
+    const entity = this._mapper.map(
+      command.createConfigurationRequest,
+      CreateConfigurationRequest,
+      Configuration,
+    );
+
+    try {
+      const configuration = await this._repository.create(entity);
+      return configuration;
+    } catch (error) {
+      throw error;
+    }
+  }
+}
diff --git a/src/modules/configuration/domain/usecases/delete-configuration.usecase.ts b/src/modules/configuration/domain/usecases/delete-configuration.usecase.ts
new file mode 100644
index 0000000..89472aa
--- /dev/null
+++ b/src/modules/configuration/domain/usecases/delete-configuration.usecase.ts
@@ -0,0 +1,18 @@
+import { CommandHandler } from '@nestjs/cqrs';
+import { ConfigurationRepository } from '../../adapters/secondaries/configuration.repository';
+import { DeleteConfigurationCommand } from '../../commands/delete-configuration.command';
+import { Configuration } from '../entities/configuration';
+
+@CommandHandler(DeleteConfigurationCommand)
+export class DeleteConfigurationUseCase {
+  constructor(private readonly _repository: ConfigurationRepository) {}
+
+  async execute(command: DeleteConfigurationCommand): Promise<Configuration> {
+    try {
+      const configuration = await this._repository.delete(command.uuid);
+      return configuration;
+    } catch (error) {
+      throw error;
+    }
+  }
+}
diff --git a/src/modules/configuration/domain/usecases/find-all-configurations.usecase.ts b/src/modules/configuration/domain/usecases/find-all-configurations.usecase.ts
new file mode 100644
index 0000000..84ebd31
--- /dev/null
+++ b/src/modules/configuration/domain/usecases/find-all-configurations.usecase.ts
@@ -0,0 +1,19 @@
+import { QueryHandler } from '@nestjs/cqrs';
+import { ICollection } from 'src/modules/database/src/interfaces/collection.interface';
+import { ConfigurationRepository } from '../../adapters/secondaries/configuration.repository';
+import { FindAllConfigurationsQuery } from '../../queries/find-all-configurations.query';
+import { Configuration } from '../entities/configuration';
+
+@QueryHandler(FindAllConfigurationsQuery)
+export class FindAllConfigurationsUseCase {
+  constructor(private readonly _repository: ConfigurationRepository) {}
+
+  async execute(
+    findAllConfigurationsQuery: FindAllConfigurationsQuery,
+  ): Promise<ICollection<Configuration>> {
+    return this._repository.findAll(
+      findAllConfigurationsQuery.page,
+      findAllConfigurationsQuery.perPage,
+    );
+  }
+}
diff --git a/src/modules/configuration/domain/usecases/find-configuration-by-uuid.usecase.ts b/src/modules/configuration/domain/usecases/find-configuration-by-uuid.usecase.ts
new file mode 100644
index 0000000..c81dde0
--- /dev/null
+++ b/src/modules/configuration/domain/usecases/find-configuration-by-uuid.usecase.ts
@@ -0,0 +1,24 @@
+import { NotFoundException } from '@nestjs/common';
+import { QueryHandler } from '@nestjs/cqrs';
+import { ConfigurationRepository } from '../../adapters/secondaries/configuration.repository';
+import { FindConfigurationByUuidQuery } from '../../queries/find-configuration-by-uuid.query';
+import { Configuration } from '../entities/configuration';
+
+@QueryHandler(FindConfigurationByUuidQuery)
+export class FindConfigurationByUuidUseCase {
+  constructor(private readonly _repository: ConfigurationRepository) {}
+
+  async execute(
+    findConfigurationByUuid: FindConfigurationByUuidQuery,
+  ): Promise<Configuration> {
+    try {
+      const configuration = await this._repository.findOneByUuid(
+        findConfigurationByUuid.uuid,
+      );
+      if (!configuration) throw new NotFoundException();
+      return configuration;
+    } catch (error) {
+      throw error;
+    }
+  }
+}
diff --git a/src/modules/configuration/domain/usecases/update-configuration.usecase.ts b/src/modules/configuration/domain/usecases/update-configuration.usecase.ts
new file mode 100644
index 0000000..7103c0b
--- /dev/null
+++ b/src/modules/configuration/domain/usecases/update-configuration.usecase.ts
@@ -0,0 +1,33 @@
+import { Mapper } from '@automapper/core';
+import { InjectMapper } from '@automapper/nestjs';
+import { CommandHandler } from '@nestjs/cqrs';
+import { ConfigurationRepository } from '../../adapters/secondaries/configuration.repository';
+import { UpdateConfigurationCommand } from '../../commands/update-configuration.command';
+import { UpdateConfigurationRequest } from '../dtos/update-configuration.request';
+import { Configuration } from '../entities/configuration';
+
+@CommandHandler(UpdateConfigurationCommand)
+export class UpdateConfigurationUseCase {
+  constructor(
+    private readonly _repository: ConfigurationRepository,
+    @InjectMapper() private readonly _mapper: Mapper,
+  ) {}
+
+  async execute(command: UpdateConfigurationCommand): Promise<Configuration> {
+    const entity = this._mapper.map(
+      command.updateConfigurationRequest,
+      UpdateConfigurationRequest,
+      Configuration,
+    );
+
+    try {
+      const configuration = await this._repository.update(
+        command.updateConfigurationRequest.uuid,
+        entity,
+      );
+      return configuration;
+    } catch (error) {
+      throw error;
+    }
+  }
+}
diff --git a/src/modules/configuration/mappers/configuration.profile.ts b/src/modules/configuration/mappers/configuration.profile.ts
new file mode 100644
index 0000000..374b862
--- /dev/null
+++ b/src/modules/configuration/mappers/configuration.profile.ts
@@ -0,0 +1,29 @@
+import { createMap, forMember, ignore, Mapper } from '@automapper/core';
+import { AutomapperProfile, InjectMapper } from '@automapper/nestjs';
+import { Injectable } from '@nestjs/common';
+import { ConfigurationPresenter } from '../adapters/primaries/configuration.presenter';
+import { CreateConfigurationRequest } from '../domain/dtos/create-configuration.request';
+import { UpdateConfigurationRequest } from '../domain/dtos/update-configuration.request';
+import { Configuration } from '../domain/entities/configuration';
+
+@Injectable()
+export class ConfigurationProfile extends AutomapperProfile {
+  constructor(@InjectMapper() mapper: Mapper) {
+    super(mapper);
+  }
+
+  override get profile() {
+    return (mapper: any) => {
+      createMap(mapper, Configuration, ConfigurationPresenter);
+
+      createMap(mapper, CreateConfigurationRequest, Configuration);
+
+      createMap(
+        mapper,
+        UpdateConfigurationRequest,
+        Configuration,
+        forMember((dest) => dest.uuid, ignore()),
+      );
+    };
+  }
+}
diff --git a/src/modules/configuration/queries/find-all-configurations.query.ts b/src/modules/configuration/queries/find-all-configurations.query.ts
new file mode 100644
index 0000000..aa47297
--- /dev/null
+++ b/src/modules/configuration/queries/find-all-configurations.query.ts
@@ -0,0 +1,11 @@
+import { FindAllConfigurationsRequest } from '../domain/dtos/find-all-configurations.request';
+
+export class FindAllConfigurationsQuery {
+  page: number;
+  perPage: number;
+
+  constructor(findAllConfigurationsRequest?: FindAllConfigurationsRequest) {
+    this.page = findAllConfigurationsRequest?.page ?? 1;
+    this.perPage = findAllConfigurationsRequest?.perPage ?? 10;
+  }
+}
diff --git a/src/modules/configuration/queries/find-configuration-by-uuid.query.ts b/src/modules/configuration/queries/find-configuration-by-uuid.query.ts
new file mode 100644
index 0000000..744b66a
--- /dev/null
+++ b/src/modules/configuration/queries/find-configuration-by-uuid.query.ts
@@ -0,0 +1,9 @@
+import { FindConfigurationByUuidRequest } from '../domain/dtos/find-configuration-by-uuid.request';
+
+export class FindConfigurationByUuidQuery {
+  readonly uuid: string;
+
+  constructor(findConfigurationByUuidRequest: FindConfigurationByUuidRequest) {
+    this.uuid = findConfigurationByUuidRequest.uuid;
+  }
+}
diff --git a/src/modules/configuration/tests/unit/create-configuration.usecase.spec.ts b/src/modules/configuration/tests/unit/create-configuration.usecase.spec.ts
new file mode 100644
index 0000000..dc5260c
--- /dev/null
+++ b/src/modules/configuration/tests/unit/create-configuration.usecase.spec.ts
@@ -0,0 +1,74 @@
+import { classes } from '@automapper/classes';
+import { AutomapperModule } from '@automapper/nestjs';
+import { Test, TestingModule } from '@nestjs/testing';
+import { ConfigurationRepository } from '../../adapters/secondaries/configuration.repository';
+import { CreateConfigurationCommand } from '../../commands/create-configuration.command';
+import { CreateConfigurationRequest } from '../../domain/dtos/create-configuration.request';
+import { Domain } from '../../domain/dtos/domain.enum';
+import { Configuration } from '../../domain/entities/configuration';
+import { CreateConfigurationUseCase } from '../../domain/usecases/create-configuration.usecase';
+import { ConfigurationProfile } from '../../mappers/configuration.profile';
+
+const newConfigurationRequest: CreateConfigurationRequest = {
+  domain: Domain.user,
+  key: 'minAge',
+  value: '16',
+};
+const newConfigurationCommand: CreateConfigurationCommand =
+  new CreateConfigurationCommand(newConfigurationRequest);
+
+const mockConfigurationRepository = {
+  create: jest
+    .fn()
+    .mockImplementationOnce(() => {
+      return Promise.resolve({
+        ...newConfigurationRequest,
+        uuid: 'bb281075-1b98-4456-89d6-c643d3044a91',
+      });
+    })
+    .mockImplementation(() => {
+      throw new Error('Already exists');
+    }),
+};
+
+describe('CreateConfigurationUseCase', () => {
+  let createConfigurationUseCase: CreateConfigurationUseCase;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      imports: [AutomapperModule.forRoot({ strategyInitializer: classes() })],
+      providers: [
+        {
+          provide: ConfigurationRepository,
+          useValue: mockConfigurationRepository,
+        },
+        CreateConfigurationUseCase,
+        ConfigurationProfile,
+      ],
+    }).compile();
+
+    createConfigurationUseCase = module.get<CreateConfigurationUseCase>(
+      CreateConfigurationUseCase,
+    );
+  });
+
+  it('should be defined', () => {
+    expect(createConfigurationUseCase).toBeDefined();
+  });
+
+  describe('execute', () => {
+    it('should create and return a new configuration', async () => {
+      const newConfiguration: Configuration =
+        await createConfigurationUseCase.execute(newConfigurationCommand);
+
+      expect(newConfiguration.key).toBe(newConfigurationRequest.key);
+      expect(newConfiguration.uuid).toBeDefined();
+    });
+
+    it('should throw an error if configuration already exists', async () => {
+      await expect(
+        createConfigurationUseCase.execute(newConfigurationCommand),
+      ).rejects.toBeInstanceOf(Error);
+    });
+  });
+});
diff --git a/src/modules/configuration/tests/unit/delete-configuration.usecase.spec.ts b/src/modules/configuration/tests/unit/delete-configuration.usecase.spec.ts
new file mode 100644
index 0000000..491b7da
--- /dev/null
+++ b/src/modules/configuration/tests/unit/delete-configuration.usecase.spec.ts
@@ -0,0 +1,90 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { ConfigurationRepository } from '../../adapters/secondaries/configuration.repository';
+import { DeleteConfigurationCommand } from '../../commands/delete-configuration.command';
+import { Domain } from '../../domain/dtos/domain.enum';
+import { DeleteConfigurationUseCase } from '../../domain/usecases/delete-configuration.usecase';
+
+const mockConfigurations = [
+  {
+    uuid: 'bb281075-1b98-4456-89d6-c643d3044a91',
+    domain: Domain.user,
+    key: 'key1',
+    value: 'value1',
+  },
+  {
+    uuid: 'bb281075-1b98-4456-89d6-c643d3044a92',
+    domain: Domain.user,
+    key: 'key2',
+    value: 'value2',
+  },
+  {
+    uuid: 'bb281075-1b98-4456-89d6-c643d3044a93',
+    domain: Domain.user,
+    key: 'key3',
+    value: 'value3',
+  },
+];
+
+const mockConfigurationRepository = {
+  delete: jest
+    .fn()
+    .mockImplementationOnce((uuid: string) => {
+      let savedConfiguration = {};
+      mockConfigurations.forEach((configuration, index) => {
+        if (configuration.uuid === uuid) {
+          savedConfiguration = { ...configuration };
+          mockConfigurations.splice(index, 1);
+        }
+      });
+      return savedConfiguration;
+    })
+    .mockImplementation(() => {
+      throw new Error('Error');
+    }),
+};
+
+describe('DeleteConfigurationUseCase', () => {
+  let deleteConfigurationUseCase: DeleteConfigurationUseCase;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: ConfigurationRepository,
+          useValue: mockConfigurationRepository,
+        },
+        DeleteConfigurationUseCase,
+      ],
+    }).compile();
+
+    deleteConfigurationUseCase = module.get<DeleteConfigurationUseCase>(
+      DeleteConfigurationUseCase,
+    );
+  });
+
+  it('should be defined', () => {
+    expect(deleteConfigurationUseCase).toBeDefined();
+  });
+
+  describe('execute', () => {
+    it('should delete a configuration', async () => {
+      const savedUuid = mockConfigurations[0].uuid;
+      const deleteConfigurationCommand = new DeleteConfigurationCommand(
+        savedUuid,
+      );
+      await deleteConfigurationUseCase.execute(deleteConfigurationCommand);
+
+      const deletedConfiguration = mockConfigurations.find(
+        (configuration) => configuration.uuid === savedUuid,
+      );
+      expect(deletedConfiguration).toBeUndefined();
+    });
+    it('should throw an error if configuration does not exist', async () => {
+      await expect(
+        deleteConfigurationUseCase.execute(
+          new DeleteConfigurationCommand('wrong uuid'),
+        ),
+      ).rejects.toBeInstanceOf(Error);
+    });
+  });
+});
diff --git a/src/modules/configuration/tests/unit/find-all-configurations.usecase.spec.ts b/src/modules/configuration/tests/unit/find-all-configurations.usecase.spec.ts
new file mode 100644
index 0000000..ccc089d
--- /dev/null
+++ b/src/modules/configuration/tests/unit/find-all-configurations.usecase.spec.ts
@@ -0,0 +1,78 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { ConfigurationRepository } from '../../adapters/secondaries/configuration.repository';
+import { Domain } from '../../domain/dtos/domain.enum';
+import { FindAllConfigurationsRequest } from '../../domain/dtos/find-all-configurations.request';
+import { FindAllConfigurationsUseCase } from '../../domain/usecases/find-all-configurations.usecase';
+import { FindAllConfigurationsQuery } from '../../queries/find-all-configurations.query';
+
+const findAllConfigurationsRequest: FindAllConfigurationsRequest =
+  new FindAllConfigurationsRequest();
+findAllConfigurationsRequest.page = 1;
+findAllConfigurationsRequest.perPage = 10;
+
+const findAllConfigurationsQuery: FindAllConfigurationsQuery =
+  new FindAllConfigurationsQuery(findAllConfigurationsRequest);
+
+const mockConfigurations = [
+  {
+    uuid: 'bb281075-1b98-4456-89d6-c643d3044a91',
+    domain: Domain.user,
+    key: 'key1',
+    value: 'value1',
+  },
+  {
+    uuid: 'bb281075-1b98-4456-89d6-c643d3044a92',
+    domain: Domain.user,
+    key: 'key2',
+    value: 'value2',
+  },
+  {
+    uuid: 'bb281075-1b98-4456-89d6-c643d3044a93',
+    domain: Domain.user,
+    key: 'key3',
+    value: 'value3',
+  },
+];
+
+const mockConfigurationRepository = {
+  findAll: jest
+    .fn()
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    .mockImplementation((query?: FindAllConfigurationsQuery) => {
+      return Promise.resolve(mockConfigurations);
+    }),
+};
+
+describe('FindAllConfigurationsUseCase', () => {
+  let findAllConfigurationsUseCase: FindAllConfigurationsUseCase;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: ConfigurationRepository,
+          useValue: mockConfigurationRepository,
+        },
+        FindAllConfigurationsUseCase,
+      ],
+    }).compile();
+
+    findAllConfigurationsUseCase = module.get<FindAllConfigurationsUseCase>(
+      FindAllConfigurationsUseCase,
+    );
+  });
+
+  it('should be defined', () => {
+    expect(findAllConfigurationsUseCase).toBeDefined();
+  });
+
+  describe('execute', () => {
+    it('should return an array filled with configurations', async () => {
+      const configurations = await findAllConfigurationsUseCase.execute(
+        findAllConfigurationsQuery,
+      );
+
+      expect(configurations).toBe(mockConfigurations);
+    });
+  });
+});
diff --git a/src/modules/configuration/tests/unit/find-configuration-by-uuid.usecase.spec.ts b/src/modules/configuration/tests/unit/find-configuration-by-uuid.usecase.spec.ts
new file mode 100644
index 0000000..20071a8
--- /dev/null
+++ b/src/modules/configuration/tests/unit/find-configuration-by-uuid.usecase.spec.ts
@@ -0,0 +1,75 @@
+import { NotFoundException } from '@nestjs/common';
+import { Test, TestingModule } from '@nestjs/testing';
+import { ConfigurationRepository } from '../../adapters/secondaries/configuration.repository';
+import { Domain } from '../../domain/dtos/domain.enum';
+import { FindConfigurationByUuidRequest } from '../../domain/dtos/find-configuration-by-uuid.request';
+import { FindConfigurationByUuidUseCase } from '../../domain/usecases/find-configuration-by-uuid.usecase';
+import { FindConfigurationByUuidQuery } from '../../queries/find-configuration-by-uuid.query';
+
+const mockConfiguration = {
+  uuid: 'bb281075-1b98-4456-89d6-c643d3044a91',
+  domain: Domain.user,
+  key: 'key1',
+  value: 'value1',
+};
+
+const mockConfigurationRepository = {
+  findOneByUuid: jest
+    .fn()
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    .mockImplementationOnce((query?: FindConfigurationByUuidQuery) => {
+      return Promise.resolve(mockConfiguration);
+    })
+    .mockImplementation(() => {
+      return Promise.resolve(undefined);
+    }),
+};
+
+describe('FindConfigurationByUuidUseCase', () => {
+  let findConfigurationByUuidUseCase: FindConfigurationByUuidUseCase;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      imports: [],
+      providers: [
+        {
+          provide: ConfigurationRepository,
+          useValue: mockConfigurationRepository,
+        },
+        FindConfigurationByUuidUseCase,
+      ],
+    }).compile();
+
+    findConfigurationByUuidUseCase = module.get<FindConfigurationByUuidUseCase>(
+      FindConfigurationByUuidUseCase,
+    );
+  });
+
+  it('should be defined', () => {
+    expect(findConfigurationByUuidUseCase).toBeDefined();
+  });
+
+  describe('execute', () => {
+    it('should return a Configuration', async () => {
+      const findConfigurationByUuidRequest: FindConfigurationByUuidRequest =
+        new FindConfigurationByUuidRequest();
+      findConfigurationByUuidRequest.uuid =
+        'bb281075-1b98-4456-89d6-c643d3044a91';
+      const Configuration = await findConfigurationByUuidUseCase.execute(
+        new FindConfigurationByUuidQuery(findConfigurationByUuidRequest),
+      );
+      expect(Configuration).toBe(mockConfiguration);
+    });
+    it('should throw an error if Configuration does not exist', async () => {
+      const findConfigurationByUuidRequest: FindConfigurationByUuidRequest =
+        new FindConfigurationByUuidRequest();
+      findConfigurationByUuidRequest.uuid =
+        'bb281075-1b98-4456-89d6-c643d3044a90';
+      await expect(
+        findConfigurationByUuidUseCase.execute(
+          new FindConfigurationByUuidQuery(findConfigurationByUuidRequest),
+        ),
+      ).rejects.toBeInstanceOf(NotFoundException);
+    });
+  });
+});
diff --git a/src/modules/configuration/tests/unit/update-configuration.usecase.spec.ts b/src/modules/configuration/tests/unit/update-configuration.usecase.spec.ts
new file mode 100644
index 0000000..fcfb8ad
--- /dev/null
+++ b/src/modules/configuration/tests/unit/update-configuration.usecase.spec.ts
@@ -0,0 +1,75 @@
+import { classes } from '@automapper/classes';
+import { AutomapperModule } from '@automapper/nestjs';
+import { Test, TestingModule } from '@nestjs/testing';
+import { ConfigurationRepository } from '../../adapters/secondaries/configuration.repository';
+import { UpdateConfigurationCommand } from '../../commands/update-configuration.command';
+import { UpdateConfigurationRequest } from '../../domain/dtos/update-configuration.request';
+import { Configuration } from '../../domain/entities/configuration';
+import { UpdateConfigurationUseCase } from '../../domain/usecases/update-configuration.usecase';
+import { ConfigurationProfile } from '../../mappers/configuration.profile';
+
+const originalConfiguration: Configuration = new Configuration();
+originalConfiguration.uuid = 'bb281075-1b98-4456-89d6-c643d3044a91';
+originalConfiguration.key = 'key1';
+
+const updateConfigurationRequest: UpdateConfigurationRequest = {
+  uuid: 'bb281075-1b98-4456-89d6-c643d3044a91',
+  key: 'Dane',
+};
+
+const updateConfigurationCommand: UpdateConfigurationCommand =
+  new UpdateConfigurationCommand(updateConfigurationRequest);
+
+const mockConfigurationRepository = {
+  update: jest
+    .fn()
+    .mockImplementationOnce((uuid: string, params: any) => {
+      originalConfiguration.key = params.key;
+
+      return Promise.resolve(originalConfiguration);
+    })
+    .mockImplementation(() => {
+      throw new Error('Error');
+    }),
+};
+
+describe('UpdateConfigurationUseCase', () => {
+  let updateConfigurationUseCase: UpdateConfigurationUseCase;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      imports: [AutomapperModule.forRoot({ strategyInitializer: classes() })],
+
+      providers: [
+        {
+          provide: ConfigurationRepository,
+          useValue: mockConfigurationRepository,
+        },
+        UpdateConfigurationUseCase,
+        ConfigurationProfile,
+      ],
+    }).compile();
+
+    updateConfigurationUseCase = module.get<UpdateConfigurationUseCase>(
+      UpdateConfigurationUseCase,
+    );
+  });
+
+  it('should be defined', () => {
+    expect(updateConfigurationUseCase).toBeDefined();
+  });
+
+  describe('execute', () => {
+    it('should update a configuration', async () => {
+      const updatedConfiguration: Configuration =
+        await updateConfigurationUseCase.execute(updateConfigurationCommand);
+
+      expect(updatedConfiguration.key).toBe(updateConfigurationRequest.key);
+    });
+    it('should throw an error if configuration does not exist', async () => {
+      await expect(
+        updateConfigurationUseCase.execute(updateConfigurationCommand),
+      ).rejects.toBeInstanceOf(Error);
+    });
+  });
+});
diff --git a/src/modules/database/database.module.ts b/src/modules/database/database.module.ts
new file mode 100644
index 0000000..6cf2419
--- /dev/null
+++ b/src/modules/database/database.module.ts
@@ -0,0 +1,9 @@
+import { Module } from '@nestjs/common';
+import { PrismaService } from './src/adapters/secondaries/prisma-service';
+import { ConfigRepository } from './src/domain/configuration.repository';
+
+@Module({
+  providers: [PrismaService, ConfigRepository],
+  exports: [PrismaService, ConfigRepository],
+})
+export class DatabaseModule {}
diff --git a/src/modules/database/src/adapters/secondaries/prisma-repository.abstract.ts b/src/modules/database/src/adapters/secondaries/prisma-repository.abstract.ts
new file mode 100644
index 0000000..0c7fbb2
--- /dev/null
+++ b/src/modules/database/src/adapters/secondaries/prisma-repository.abstract.ts
@@ -0,0 +1,163 @@
+import { Injectable } from '@nestjs/common';
+import { PrismaClientKnownRequestError } from '@prisma/client/runtime';
+import { DatabaseException } from '../../exceptions/database.exception';
+import { ICollection } from '../../interfaces/collection.interface';
+import { IRepository } from '../../interfaces/repository.interface';
+import { PrismaService } from './prisma-service';
+
+/**
+ * Child classes MUST redefined _model property with appropriate model name
+ */
+@Injectable()
+export abstract class PrismaRepository<T> implements IRepository<T> {
+  protected _model: string;
+
+  constructor(protected readonly _prisma: PrismaService) {}
+
+  async findAll(
+    page = 1,
+    perPage = 10,
+    where?: any,
+    include?: any,
+  ): Promise<ICollection<T>> {
+    const [data, total] = await this._prisma.$transaction([
+      this._prisma[this._model].findMany({
+        where,
+        include,
+        skip: (page - 1) * perPage,
+        take: perPage,
+      }),
+      this._prisma[this._model].count({
+        where,
+      }),
+    ]);
+    return Promise.resolve({
+      data,
+      total,
+    });
+  }
+
+  async findOneByUuid(uuid: string): Promise<T> {
+    try {
+      const entity = await this._prisma[this._model].findUnique({
+        where: { uuid },
+      });
+
+      return entity;
+    } catch (e) {
+      if (e instanceof PrismaClientKnownRequestError) {
+        throw new DatabaseException(
+          PrismaClientKnownRequestError.name,
+          e.code,
+          e.message,
+        );
+      } else {
+        throw new DatabaseException();
+      }
+    }
+  }
+
+  async findOne(where: any, include?: any): Promise<T> {
+    try {
+      const entity = await this._prisma[this._model].findFirst({
+        where: where,
+        include: include,
+      });
+
+      return entity;
+    } catch (e) {
+      if (e instanceof PrismaClientKnownRequestError) {
+        throw new DatabaseException(PrismaClientKnownRequestError.name, e.code);
+      } else {
+        throw new DatabaseException();
+      }
+    }
+  }
+
+  async create(entity: Partial<T> | any, include?: any): Promise<T> {
+    try {
+      const res = await this._prisma[this._model].create({
+        data: entity,
+        include: include,
+      });
+
+      return res;
+    } catch (e) {
+      if (e instanceof PrismaClientKnownRequestError) {
+        throw new DatabaseException(
+          PrismaClientKnownRequestError.name,
+          e.code,
+          e.message,
+        );
+      } else {
+        throw new DatabaseException();
+      }
+    }
+  }
+
+  async update(uuid: string, entity: Partial<T>): Promise<T> {
+    try {
+      const updatedEntity = await this._prisma[this._model].update({
+        where: { uuid },
+        data: entity,
+      });
+
+      return updatedEntity;
+    } catch (e) {
+      if (e instanceof PrismaClientKnownRequestError) {
+        throw new DatabaseException(
+          PrismaClientKnownRequestError.name,
+          e.code,
+          e.message,
+        );
+      } else {
+        throw new DatabaseException();
+      }
+    }
+  }
+
+  async updateWhere(
+    where: any,
+    entity: Partial<T> | any,
+    include?: any,
+  ): Promise<T> {
+    try {
+      const updatedEntity = await this._prisma[this._model].update({
+        where: where,
+        data: entity,
+        include: include,
+      });
+
+      return updatedEntity;
+    } catch (e) {
+      if (e instanceof PrismaClientKnownRequestError) {
+        throw new DatabaseException(
+          PrismaClientKnownRequestError.name,
+          e.code,
+          e.message,
+        );
+      } else {
+        throw new DatabaseException();
+      }
+    }
+  }
+
+  async delete(uuid: string): Promise<T> {
+    try {
+      const entity = await this._prisma[this._model].delete({
+        where: { uuid },
+      });
+      return entity;
+    } catch (e) {
+      if (e instanceof PrismaClientKnownRequestError) {
+        throw new DatabaseException(
+          PrismaClientKnownRequestError.name,
+          e.code,
+          e.message,
+        );
+      } else {
+        throw new DatabaseException();
+      }
+    }
+  }
+}
diff --git a/src/modules/database/src/adapters/secondaries/prisma-service.ts b/src/modules/database/src/adapters/secondaries/prisma-service.ts
new file mode 100644
index 0000000..edf6532
--- /dev/null
+++ b/src/modules/database/src/adapters/secondaries/prisma-service.ts
@@ -0,0 +1,15 @@
+import { INestApplication, Injectable, OnModuleInit } from '@nestjs/common';
+import { PrismaClient } from '@prisma/client';
+
+@Injectable()
+export class PrismaService extends PrismaClient implements OnModuleInit {
+  async onModuleInit() {
+    await this.$connect();
+  }
+
+  async enableShutdownHooks(app: INestApplication) {
+    this.$on('beforeExit', async () => {
+      await app.close();
+    });
+  }
+}
diff --git a/src/modules/database/src/domain/configuration.repository.ts b/src/modules/database/src/domain/configuration.repository.ts
new file mode 100644
index 0000000..05bc368
--- /dev/null
+++ b/src/modules/database/src/domain/configuration.repository.ts
@@ -0,0 +1,3 @@
+import { PrismaRepository } from '../adapters/secondaries/prisma-repository.abstract';
+
+export class ConfigRepository<T> extends PrismaRepository<T> {}
diff --git a/src/modules/database/src/exceptions/database.exception.ts b/src/modules/database/src/exceptions/database.exception.ts
new file mode 100644
index 0000000..b0782a6
--- /dev/null
+++ b/src/modules/database/src/exceptions/database.exception.ts
@@ -0,0 +1,24 @@
+export class DatabaseException implements Error {
+  name: string;
+  message: string;
+
+  constructor(
+    private _type: string = 'unknown',
+    private _code: string = '',
+    message?: string,
+  ) {
+    this.name = 'DatabaseException';
+    this.message = message ?? 'An error occured with the database.';
+    if (this.message.includes('Unique constraint failed')) {
+      this.message = 'Already exists.';
+    }
+  }
+
+  get type(): string {
+    return this._type;
+  }
+
+  get code(): string {
+    return this._code;
+  }
+}
diff --git a/src/modules/database/src/interfaces/collection.interface.ts b/src/modules/database/src/interfaces/collection.interface.ts
new file mode 100644
index 0000000..6e9a96d
--- /dev/null
+++ b/src/modules/database/src/interfaces/collection.interface.ts
@@ -0,0 +1,4 @@
+export interface ICollection<T> {
+  data: T[];
+  total: number;
+}
diff --git a/src/modules/database/src/interfaces/repository.interface.ts b/src/modules/database/src/interfaces/repository.interface.ts
new file mode 100644
index 0000000..9228712
--- /dev/null
+++ b/src/modules/database/src/interfaces/repository.interface.ts
@@ -0,0 +1,16 @@
+import { ICollection } from './collection.interface';
+
+export interface IRepository<T> {
+  findAll(
+    page: number,
+    perPage: number,
+    params?: any,
+    include?: any,
+  ): Promise<ICollection<T>>;
+  findOne(where: any, include?: any): Promise<T>;
+  findOneByUuid(uuid: string, include?: any): Promise<T>;
+  create(entity: Partial<T> | any, include?: any): Promise<T>;
+  update(uuid: string, entity: Partial<T>, include?: any): Promise<T>;
+  updateWhere(where: any, entity: Partial<T> | any, include?: any): Promise<T>;
+  delete(uuid: string): Promise<T>;
+}
diff --git a/src/modules/database/tests/unit/prisma-repository.spec.ts b/src/modules/database/tests/unit/prisma-repository.spec.ts
new file mode 100644
index 0000000..064ba6e
--- /dev/null
+++ b/src/modules/database/tests/unit/prisma-repository.spec.ts
@@ -0,0 +1,244 @@
+import { Injectable } from '@nestjs/common';
+import { Test, TestingModule } from '@nestjs/testing';
+import { PrismaService } from '../../src/adapters/secondaries/prisma-service';
+import { PrismaRepository } from '../../src/adapters/secondaries/prisma-repository.abstract';
+import { DatabaseException } from '../../src/exceptions/database.exception';
+
+class FakeEntity {
+  uuid?: string;
+  name: string;
+}
+
+let entityId = 2;
+const entityUuid = 'uuid-';
+const entityName = 'name-';
+
+const createRandomEntity = (): FakeEntity => {
+  const entity: FakeEntity = {
+    uuid: `${entityUuid}${entityId}`,
+    name: `${entityName}${entityId}`,
+  };
+
+  entityId++;
+
+  return entity;
+};
+
+const fakeEntityToCreate: FakeEntity = {
+  name: 'test',
+};
+
+const fakeEntityCreated: FakeEntity = {
+  ...fakeEntityToCreate,
+  uuid: 'some-uuid',
+};
+
+const fakeEntities: FakeEntity[] = [];
+Array.from({ length: 10 }).forEach(() => {
+  fakeEntities.push(createRandomEntity());
+});
+
+@Injectable()
+class FakePrismaRepository extends PrismaRepository<FakeEntity> {
+  protected _model = 'fake';
+}
+
+class FakePrismaService extends PrismaService {
+  fake: any;
+}
+
+const mockPrismaService = {
+  $transaction: jest.fn().mockImplementation(async (data: any) => {
+    const entities = await data[0];
+    if (entities.length == 1) {
+      return Promise.resolve([[fakeEntityCreated], 1]);
+    }
+
+    return Promise.resolve([fakeEntities, fakeEntities.length]);
+  }),
+  fake: {
+    create: jest.fn().mockResolvedValue(fakeEntityCreated),
+
+    findMany: jest.fn().mockImplementation((params?: any) => {
+      if (params?.where?.limit == 1) {
+        return Promise.resolve([fakeEntityCreated]);
+      }
+
+      return Promise.resolve(fakeEntities);
+    }),
+    count: jest.fn().mockResolvedValue(fakeEntities.length),
+
+    findUnique: jest.fn().mockImplementation(async (params?: any) => {
+      let entity;
+
+      if (params?.where?.uuid) {
+        entity = fakeEntities.find(
+          (entity) => entity.uuid === params?.where?.uuid,
+        );
+      }
+
+      if (!entity) {
+        throw new Error('no entity');
+      }
+
+      return entity;
+    }),
+
+    findFirst: jest.fn().mockImplementation((params?: any) => {
+      if (params?.where?.name) {
+        return Promise.resolve(
+          fakeEntities.find((entity) => entity.name === params?.where?.name),
+        );
+      }
+    }),
+
+    update: jest.fn().mockImplementation((params: any) => {
+      const entity = fakeEntities.find(
+        (entity) => entity.uuid === params.where.uuid,
+      );
+      Object.entries(params.data).map(([key, value]) => {
+        entity[key] = value;
+      });
+
+      return Promise.resolve(entity);
+    }),
+
+    delete: jest.fn().mockImplementation((params: any) => {
+      let found = false;
+
+      fakeEntities.forEach((entity, index) => {
+        if (entity.uuid === params?.where?.uuid) {
+          found = true;
+          fakeEntities.splice(index, 1);
+        }
+      });
+
+      if (!found) {
+        throw new Error();
+      }
+    }),
+  },
+};
+
+describe('PrismaRepository', () => {
+  let fakeRepository: FakePrismaRepository;
+  let prisma: FakePrismaService;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        FakePrismaRepository,
+        {
+          provide: PrismaService,
+          useValue: mockPrismaService,
+        },
+      ],
+    }).compile();
+
+    fakeRepository = module.get<FakePrismaRepository>(FakePrismaRepository);
+    prisma = module.get<PrismaService>(PrismaService) as FakePrismaService;
+  });
+
+  it('should be defined', () => {
+    expect(fakeRepository).toBeDefined();
+    expect(prisma).toBeDefined();
+  });
+
+  describe('findAll', () => {
+    it('should return an array of entities', async () => {
+      jest.spyOn(prisma.fake, 'findMany');
+      jest.spyOn(prisma.fake, 'count');
+      jest.spyOn(prisma, '$transaction');
+
+      const entities = await fakeRepository.findAll();
+      expect(entities).toStrictEqual({
+        data: fakeEntities,
+        total: fakeEntities.length,
+      });
+    });
+
+    it('should return an array containing only one entity', async () => {
+      const entities = await fakeRepository.findAll(1, 10, { limit: 1 });
+
+      expect(prisma.fake.findMany).toHaveBeenCalledWith({
+        skip: 0,
+        take: 10,
+        where: { limit: 1 },
+      });
+      expect(entities).toEqual({
+        data: [fakeEntityCreated],
+        total: 1,
+      });
+    });
+  });
+
+  describe('create', () => {
+    it('should create an entity', async () => {
+      jest.spyOn(prisma.fake, 'create');
+
+      const newEntity = await fakeRepository.create(fakeEntityToCreate);
+      expect(newEntity).toBe(fakeEntityCreated);
+      expect(prisma.fake.create).toHaveBeenCalledTimes(1);
+    });
+  });
+
+  describe('findOne', () => {
+    it('should find an entity by uuid', async () => {
+      const entity = await fakeRepository.findOneByUuid(fakeEntities[0].uuid);
+      expect(entity).toBe(fakeEntities[0]);
+    });
+
+    it('should throw a DatabaseException if uuid is not found', async () => {
+      await expect(
+        fakeRepository.findOneByUuid('wrong-uuid'),
+      ).rejects.toBeInstanceOf(DatabaseException);
+    });
+  });
+
+  describe('update', () => {
+    it('should update an entity', async () => {
+      const newName = 'random-name';
+
+      await fakeRepository.update(fakeEntities[0].uuid, {
+        name: newName,
+      });
+      expect(fakeEntities[0].name).toBe(newName);
+    });
+
+    it("should throw an exception if an entity doesn't exist", async () => {
+      await expect(
+        fakeRepository.update('fake-uuid', { name: 'error' }),
+      ).rejects.toBeInstanceOf(DatabaseException);
+    });
+  });
+
+  describe('delete', () => {
+    it('should delete an entity', async () => {
+      const savedUuid = fakeEntities[0].uuid;
+
+      // eslint-disable-next-line @typescript-eslint/no-unused-vars
+      const res = await fakeRepository.delete(savedUuid);
+
+      const deletedEntity = fakeEntities.find(
+        (entity) => entity.uuid === savedUuid,
+      );
+      expect(deletedEntity).toBeUndefined();
+    });
+
+    it("should throw an exception if an entity doesn't exist", async () => {
+      await expect(fakeRepository.delete('fake-uuid')).rejects.toBeInstanceOf(
+        DatabaseException,
+      );
+    });
+  });
+
+  describe('findOne', () => {
+    it('should find one entity', async () => {
+      const entity = await fakeRepository.findOne({
+        name: fakeEntities[0].name,
+      });
+
+      expect(entity.name).toBe(fakeEntities[0].name);
+    });
+  });
+});
diff --git a/src/utils/pipes/rpc.validation-pipe.ts b/src/utils/pipes/rpc.validation-pipe.ts
new file mode 100644
index 0000000..f2b8c19
--- /dev/null
+++ b/src/utils/pipes/rpc.validation-pipe.ts
@@ -0,0 +1,14 @@
+import { Injectable, ValidationPipe } from '@nestjs/common';
+import { RpcException } from '@nestjs/microservices';
+
+@Injectable()
+export class RpcValidationPipe extends ValidationPipe {
+  createExceptionFactory() {
+    return (validationErrors = []) => {
+      return new RpcException({
+        code: 3,
+        message: this.flattenValidationErrors(validationErrors),
+      });
+    };
+  }
+}
diff --git a/test/app.e2e-spec.ts b/test/app.e2e-spec.ts
deleted file mode 100644
index 50cda62..0000000
--- a/test/app.e2e-spec.ts
+++ /dev/null
@@ -1,24 +0,0 @@
-import { Test, TestingModule } from '@nestjs/testing';
-import { INestApplication } from '@nestjs/common';
-import * as request from 'supertest';
-import { AppModule } from './../src/app.module';
-
-describe('AppController (e2e)', () => {
-  let app: INestApplication;
-
-  beforeEach(async () => {
-    const moduleFixture: TestingModule = await Test.createTestingModule({
-      imports: [AppModule],
-    }).compile();
-
-    app = moduleFixture.createNestApplication();
-    await app.init();
-  });
-
-  it('/ (GET)', () => {
-    return request(app.getHttpServer())
-      .get('/')
-      .expect(200)
-      .expect('Hello World!');
-  });
-});