Building Enterprise JavaScript Applications

Checking the payload property's format

Lastly, the email address field may be present and have the correct data type, but it may still not be a valid email. So, the final check is to ensure the email is a valid email address. You should get the drill by now: define a new feature inside spec/cucumber/features/users/create/main.feature, and check back here for the solution:

Scenario Outline: Request Payload with invalid email format  When the client creates a POST request to /users  And attaches a Create User payload where the email field is exactly <email>  And sends the request  Then our API should respond with a 400 HTTP status code  And the payload of the response should be a JSON object And contains a message property which says "The email ...