[typescript\angular2] Deal with 201 response status

Description

Currently, typescript\angular2 api.service.mustache template handles 204 responses status in order return an undefined value directly instead of call a response.json:

return this.createWithHttpInfo(user, passwd, extraHttpRequestParams)
            .map((response: Response) => {
                if (response.status === 204) {
                    return undefined;
                } else {
                    return response.json();
                }
            });

I've implemented an JAXRS RESt endpoint like this:

@Override
	public Response create(String username, String passwd) throws UsernameAlreadyExistsCommtyException, RepositorySystemException {
		String userId = this.userService.create(username, passwd);
		return Response.created(this.uriInfo.getAbsolutePathBuilder().path(userId).build()).build();
	}

As you can see, this method returns an create-201 response status code. So, there's no content inresponse's body. Instead, there's a location header.

Could you provide an straightforward approach to deal with this?

Swagger-codegen version

2.2.3-SNAPSHOT

The relevant entry point is the typescript\angular2 api.service.mustache template; compare its existing 204 handling with the described 201 response and Location header. Define and verify the generated client's expected 201 behavior, ensuring it does not attempt response.json() when the response has no body.