diff --git a/.eslintrc.js b/.eslintrc.js
index 8f5aedb..259de13 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -2,7 +2,7 @@ module.exports = {
   parser: '@typescript-eslint/parser',
   parserOptions: {
     project: 'tsconfig.json',
-    tsconfigRootDir : __dirname, 
+    tsconfigRootDir: __dirname,
     sourceType: 'module',
   },
   plugins: ['@typescript-eslint/eslint-plugin'],
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 406ae1f..0283fdf 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -12,7 +12,7 @@ test:
   stage: test
   image: docker/compose:latest
   variables:
-    DOCKER_TLS_CERTDIR: ""
+    DOCKER_TLS_CERTDIR: ''
   services:
     - docker:dind
   script:
@@ -22,7 +22,7 @@ test:
     - docker exec -t v3-auth-api 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 == $CI_DEFAULT_BRANCH' 
+    - if: '$CI_MERGE_REQUEST_TARGET_BRANCH_NAME == $CI_DEFAULT_BRANCH || $CI_COMMIT_MESSAGE =~ /--check/ || $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
       when: always
 
 ###############
@@ -33,7 +33,7 @@ build:
   stage: build
   image: docker:20.10.22
   variables:
-    DOCKER_TLS_CERTDIR: ""
+    DOCKER_TLS_CERTDIR: ''
   services:
     - docker:dind
   before_script:
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000..192c132
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,6 @@
+node_modules
+*.log*
+.env
+dist
+coverage
+.prettierrc.json
diff --git a/.prettierrc b/.prettierrc.json
similarity index 100%
rename from .prettierrc
rename to .prettierrc.json
diff --git a/README.md b/README.md
index a224b76..ad221ff 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ A RabbitMQ instance is also required to send / receive messages when data has be
 
 ## Installation
 
-- copy `.env.dist` to `.env` :
+-   copy `.env.dist` to `.env` :
 
     ```bash
     cp .env.dist .env
@@ -22,13 +22,13 @@ A RabbitMQ instance is also required to send / receive messages when data has be
 
     Modify it if needed.
 
-- install the dependencies :
+-   install the dependencies :
 
     ```bash
     npm install
     ```
-    
-- start the containers :
+
+-   start the containers :
 
     ```bash
     docker compose up -d
@@ -150,7 +150,7 @@ For AuthZ, the app exposes the following [gRPC](https://grpc.io/) services :
     }
     ```
 
-    In return, the service gives an authorization response : 
+    In return, the service gives an authorization response :
 
     ```json
     {
@@ -158,15 +158,14 @@ For AuthZ, the app exposes the following [gRPC](https://grpc.io/) services :
     }
     ```
 
-
 ## Messages
 
 Various RabbitMQ messages are sent for logging purpose.
 
-## Tests
+## Tests / ESLint / Prettier
 
 Tests are run outside the container for ease of use (switching between different environments inside containers using prisma is complicated and error prone).
-The integration tests use a dedicated database (see *db-test* section of *docker-compose.yml*).
+The integration tests use a dedicated database (see _db-test_ section of _docker-compose.yml_).
 
 ```bash
 # run all tests (unit + integration)
@@ -180,6 +179,12 @@ npm run test:integration
 
 # coverage
 npm run test:cov
+
+# ESLint
+npm run lint
+
+# Prettier
+npm run pretty
 ```
 
 ## License
diff --git a/ci/Dockerfile b/ci/Dockerfile
index 4b2a20c..26b388a 100644
--- a/ci/Dockerfile
+++ b/ci/Dockerfile
@@ -25,5 +25,9 @@ RUN npm run build
 # Run unit tests
 RUN npm run test:unit:ci
 
+# ESLint / Prettier
+RUN npm run lint:check
+RUN npm run pretty:check
+
 # Start the server
 CMD [ "node", "dist/main.js" ]
diff --git a/package.json b/package.json
index 7ae696c..ab29c54 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,9 @@
     "start:debug": "nest start --debug --watch",
     "start:prod": "node dist/main",
     "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
+    "lint:check": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix-dry-run --ignore-path .gitignore",
+    "pretty:check": "./node_modules/.bin/prettier --check .",
+    "pretty": "./node_modules/.bin/prettier --write .",
     "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",