Go project to store data readings received via post request on a PostgreSQL database

• Go installed on the host
• PostgreSQL database setup with: CREATE TABLE users ( id SERIAL PRIMARY KEY, name VARCHAR(255) NOT NULL, rfid VARCHAR(255) NOT NULL, matricula VARCHAR(255) NOT NULL, categoria VARCHAR(255) NOT NULL ); CREATE TABLE readings ( id SERIAL PRIMARY KEY, user_id INT NOT NULL, timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP, value NUMERIC NOT NULL, FOREIGN KEY (user_id) REFERENCES Users(id) );

• Change the database connection parameters on main.go to be your database parameters;
• Run go install - installs dependencies and build;
• Run data-storage - starts the project;

- POST /users: Create a new user.
    Body: {"name": "User Name"}
    Responses: 200 OK, 400 Bad Request, 500 Internal Server Error

- GET /users: Retrieve all users.
    Responses: 200 OK, 500 Internal Server Error

- POST /readings: Create a new reading.
    Body: {"user_id": 1, "value": 42.5}
    Responses: 200 OK, 400 Bad Request, 500 Internal Server Error

- GET /readings: Retrieve all readings.
    Responses: 200 OK, 500 Internal Server Error

- GET /readings/{user_id}: Retrieve readings for a specific user.
    URL Parameter: user_id (integer)
    Responses: 200 OK, 400 Bad Request, 500 Internal Server Error