Update a model data using PUT - rest

Question

I have a user model, I am providing a RESTful API so the client can call to update the necessary data for a given user. The following is the code and also the curl command that I used to update the user data, but it didn't work anyhow. Is there anything wrong with my code/command?
And I have the following route setup
PUT /user/{<\d+>id}/? Users.update
// Updates a single user.
public static void update(Long id) {
// Fetch from user from DB
User user = safeFindById(id);
// Set new values
user.edit("user", params.all());
// Persist user
user.validateAndSave();
// return the user rendered based on template
get(id);
}
Using Curl - add a new user
$ curl d '{"email":"admin#foo.com","password":"secret","firstname":"who","lastname":"is"}' -X POST http://localhost:9001/user/add
To update the user, both commands below didn't work
$ curl -H "Accept: application/json" -X PUT -d "firstname=test" http://localhost:9001/user/1
$ curl -H "Accept: application/json" -H "X-HTTP-Method-Override: PUT" -X POST -d "firstname=test" http://localhost:9001/user/1

Answer 1

Well without the complete route and a exception is difficult to analyze the problem. Furthermore I can't know how if your User-Object hast really a firstname and not a firstName. I would recommend to change the method:
public static void update(Long id, String firstname) {
Logger.error(firstname);
....
}
So you could check if the error was in the request.