Hands-On Server-Side Web Development with Swift

Checking login credentials

The login credentials are submitted through the HTTP POST request to the /journal/auth route. You can now implement the code to process the submitted login credentials.

Add the checkLogin handler to process the login credentials:

func checkLogin(_ req: Request) throws -> Future<Response> {    return try req.content.decode(Admin.self).flatMap { candidate in        return Admin.authenticate(username: candidate.login,                                  password: candidate.password,                                  using: BCryptDigest(),                                  on: req).map { admin in                                    guard let admin = admin else {                                        return req.redirect(to: self.loginPageWithError)                                    }                                    try req.authenticateSession(admin)                                    return req.redirect(to: self.mainPage)        }    }}

Since Admin implements the passwordAuthenticatable protocol, you can use ...