Middlewares

SwiftServe offers us writing middleware in simple, efficient and modern way.

Here is an example of using middlewares for a specific route :

MyApplication.java

@WebServlet("/*")
public class MyApplication extends Application {
  @Override
  protected void execute() {
    post("/resource", new AuthAction());
    post("/resource", new MyAction());
    // ...
  }
}

For controlling the flow of middlewares, the request object contains next(boolean n) method for indication of passing this request for the next middleware or not.

Here AuthAction.java

AuthAction.java

public class AuthAction implements HttpRequestHandler {
  @Override
  public void method(Request req, Response res) {
      // ...
      if (isAuth) {
        req.next(true);
        return;
      }
      // ...
  }
}

for this example we assume the isAuth is a boolean variable which indicates if this user is authentificated or not. In the case of authentification, we forward this request to the next middlewares, in the other hand, we stop it for the current middleware.