Validate wordpress password repeat with REST api - wordpress

Question

I have a registeration form with some custom fields and need to register users with Wordpress REST api,
$('#user_register_form').submit(function(e){
e.preventDefault();
var form = $(this),
rest = new DwREST();
rest.registerUser({
first_name: '',
last_name: '',
username: 'amin',
name : 'amin',
email : 'aaaa#amin.ev',
password: '11111',
// passwrod2: '11111' -confirm password field
// custom_field1: ''
// ....
}, function( res ){
console.log( res );
});
});
The user registeration works fine but the problem is i can't confirm wether password repeat matches or not, i searched a lot and didn't find an action to modify to /users/ validation
the second question is is it possible to automatically login user created with REST api after registeration?
i appreciate any help.

Answer 1

I searched in rest-api source codes, sadly i didn't find any proper hook to do what i needed, there's just a rest_pre_insert_user hook which getting it to do what i intend to do is a bit tricky, but here's the work around, in case some one has the same problem:
add_filter('rest_pre_insert_user', function( $user, $request ){
$params = $request->get_params();
if( $params['password'] !== $params['password2'] ) {
$error = new WP_Error( 'rest_no_matching_passwords', __( 'Passwords don\'t match' ), array( 'status' => 400 ) );
foreach( $error->error_data as $data ) {
http_response_code( $data['status'] );
}
header('Content-Type: application/json; charset=utf-8;');
foreach( $error->errors as $key => $val ){
$json = json_encode([
'code' => $key,
'type' => 'error',
'message' => $val[0]
]);
}
die( $json );
}
return $user;
}, 10, 2 );
Reference