The Login Microservice allows the user/client to authenticate a user by sendin a POST request with a username and password. If all the informartion is correct then the service will respond with a JWT token that will be used to authenticate the request. Otherwise, if the information is wrong, then the service will return an error message.
POST - /login: This used to authenticate a user and receive the JWT token. * Resquest Body: - username - password * Reponse: - 200 (OK): returns JWT token when it's sucessful - 400 (Error): returns error messages if information is wrong
GET - /protected: This is a protected raoute that requires the JWT token to be able to acess. * Request header: - Authorization * Response: - 200 (OK): returns procted data and user information if the token is valid - 400 (Unauthorized): returns error messages if invalid or missing token
To request data from the microservice, there's needs to be a POST request to the "/login" endpoint with the user's information.
Example: Requesting a JWT token
var axios = require("axios")
axios.post("http://localhost:4001/login", { username: "user1", password: "WelcomeUser!" }) .then(({ data }) => console.log("Token:", data.token)) .catch(({ response }) => console.log("Error:", response?.data))
Receiving data happens once the login is successful and there's a JWT token, it can be used to acess the protected data by sending a GET request to "/protected" endpoint with the "Authorization" header that has the JWT token.
Example: Accessing procted data
axios.get("http://localhost:4001/protected", { headers: { Authorization: "Bearer YOUR_JWT_TOKEN" } }) .then(({ data }) => console.log("Data:", data)) .catch(({ response }) => console.log("Error:", response?.data))
