Software Architecture with Spring 5.0

Thin client

As mentioned previously, there are also thin clients, which don't include a lot of code to interact with the server; one good example of a thin RESTful web service client is curl.

In order to interact with the endpoints provided by the server example, we can use two curl commands, as follows:

• The following code provides for retrieving the authentication JWT token:

$ curl -H "Content-Type: application/json" \-X POST -d '{"username":"rene","password":"rene"}' \http://localhost:8080/api/public/auth

• The following code provides for using the JWT token to query the user's account balance:

$ curl -H "x-auth-token: JWT_TOKEN" \-X GET http://localhost:8080/api/secure/balance

For these kinds of clients, we don't have to write our own ...