Rules

• GET /users: list all users page by page;
• HEAD /users: show the overview information of user listing;
• POST /users: create a new user;
• GET /users/123: return the details of the user 123;
• HEAD /users/123: show the overview information of user 123;
• PATCH /users/123 and PUT /users/123: update the user 123;
• DELETE /users/123: delete the user 123;
• OPTIONS /users: show the supported verbs regarding endpoint /users;
• OPTIONS /users/123: show the supported verbs regarding endpoint /users/123.