A simple server built with NestJS that tracks the frequency of input keys submitted via HTTP requests.

1. POST /input
   • Description: Increments the count of the key if the key already exists, otherwise creates a new key with a count of 1. The key is case-sensitive and is trimmed before being stored.
   • Request Headers: Content-Type: text/plain. Otherwise, the server will respond with a 415 Unsupported Media Type error.
   • Request Body: Non-empty string containing the key to be stored. Throws a 400 Bad Request error if the body is empty.
   • Success Response: 204 No Content
2. GET /query
   • Description: Retrieves the count of the key. The key is case-sensitive and is trimmed before being queried.
   • Query Parameters: key - Non-empty string containing the key to be queried. Throws a 400 Bad Request error if the key is not provided.
   • Success Response: 200 OK with the count of the key in the response body.

1. Clone the repository:

   git clone [email protected]:toramanomer/key-counter.git

2. Navigate to the project directory, and install the dependencies:

   cd key-counter && npm install

3. Start the server in watch mode:

   npm run start:dev

After installing the dependencies, you can build the project with the following command:

npm run build && npm run start:prod

1. Build Script is provided to build the Docker image.

   chmod +x scripts/build.sh && scripts/build.sh

2. Run Script is provided to run the Docker container.

   chmod +x scripts/run.sh && scripts/run.sh

npm run test:e2e

• Prettier - Code formatter
• ESLint
• Docker if you want to run the server in a container
• REST Client for testing endpoints using the provided requests file