configuration/README.md

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# Mobicoop V3 - Configuration Service
Configuration items management. Used to configure and store configuration items for all Mobicoop V3 services using redis as database.
Each item consists in :
- a **domain** : each service is associated with one or more domains, represented by an uppercase string (eg. _USER_)
- a **key** : the key of the configuration item (a string)
- a **value** : the value of the configuration item (always a string, each service must cast the value if needed)
## Available domains
Domains are set in the [configuration package](https://gitlab.mobicoop.io/v3/packages/configuration).
## Requirements
You need [Docker](https://docs.docker.com/engine/) and its [compose](https://docs.docker.com/compose/) plugin.
You also need NodeJS installed locally : we **strongly** advise to install [Node Version Manager](https://github.com/nvm-sh/nvm) and use the latest LTS version of Node (check that your local version matches with the one used in the Dockerfile).
The API will run inside a docker container, **but** the install itself is made outside the container, because during development we need tools that need to be available locally (eg. ESLint, Prettier...).
## Installation
- copy `.env.dist` to `.env` :
```bash
cp .env.dist .env
```
Modify it if needed.
- install the dependencies :
```bash
npm install
```
- start the containers :
```bash
docker compose up -d
```
The app runs automatically on port **5003**.
## Database migration
Redis database is automatically populated at the start of the service. If keys already exists in the database, items are preserved.
## Usage
The app exposes the following [gRPC](https://grpc.io/) services :
- **Get** : get a configuration item by its domain and key
```json
{
"domain": "CARPOOL",
"key": "seatsProposed"
}
```
- **Set** : update a configuration item
```json
{
"domain": "CARPOOL",
"key": "seatsProposed",
"value": "3"
}
```
## Tests / ESLint / Prettier
Tests are run outside the container for ease of use.
```bash
# run all tests (unit + integration)
npm run test
# unit tests only
npm run test:unit
# integration tests only
npm run test:integration
# coverage
npm run test:cov
# ESLint
npm run lint
# Prettier
npm run pretty
```
## License
Mobicoop V3 - Configuration Service is [AGPL licensed](LICENSE).