Trouble using user service API through hosted script

General
1

I suspect I’m doing something fundamental wrong here but cant figure it out. I am trying to use hosted scripts to perform user service operations such as register and login. I am using the hosted script shopping cart example as somewhat of a guide. Here is the code I have:

  1. In index.html the registerUser function:

registerUser = function() {
var resultDiv = $("#resAddItem");
resultDiv.html("");

$.ajax({
    url: window.location.protocol + "//api.backendless.com/B75DC8E3-A4F2-255C-FF29-BE5B2377B400/v1/files/web/scripts/FuTr/scripts/register_test.js",
    type: "POST",
    data: '{"userName":"test@test.com", "password":"abc"}',
    contentType: "application/json",
    success: function (result) {
        resultDiv.html("<strong>Response:</strong><br>"+JSON.stringify(result));
    },
    error: function (xhr, ajaxOptions, thrownError) {
        alert(xhr.status);
        alert(thrownError);
    }
  1. In index.html the html source:

<p>1. Register a user.</p>
<button type="button" onclick="registerUser()">Register User</button>

    &lt;div id=&quot;resAddItem&quot;&gt;&lt;/div&gt;
  1. The contents of the register_test.js file:

var Backendless = require( ‘…/libs/backendless.min’ );

exports.run = function( request, response )
{
Backendless.initApp( “B75DC8E3-A4F2-255C-FF29-BE5B2377B400”, “2919B8AD-347C-EDA4-FFAE-42AEDBF85800”, “v1” );

var jsonBody = JSON.parse( request.body );


var userName = jsonBody.userName;
var password = jsonBody.password;

var user = new Backendless.User();
user.email = userName;
user.password = password;
 
try
{
Backendless.UserService.register( user );
}
catch( err )
{
 console.log( "error message - " + err.message );
 console.log( "error code - " + err.statusCode );
}


response.send( user );

}

When I access the index.html file via public URL and click the register user button I get a response that contains the user data that was passed so I know that the username and password data is making it to register_test.js OK. The problem is that when I look at the Users table in the Data tab I never see the new user get created. It seems that somehow the Backendless.UserService.register( user ); call is never being executed. I look in the console and there are no errors, request & response data look as expected. Everything seems to work except for the user actually being created. I have tried a similar test with logging in an existing user and it has failed in the same way, data is successfully passed to the login script file but the login never occurs.

2

Hi, Greg,
I suspect you’re getting an error in register() call, but you don’t see it as long as you can’t see the console.log() output in hosted scripts - instead of using console.log() I recommend sending the error in response: response.send( err.message ). Moreover, I think the error is that you’re not allowed to use synchronous API in Node.js.
Try the following script for registration:

exports.run = function ( request, response )
{
 var jsonBody = JSON.parse( request.body );
 var userName = jsonBody.userName;
 var password = jsonBody.password;
 var user = new Backendless.User();
 user.email = userName;
 user.password = password;
 var async = new Backendless.Async( 
 function( success )
 {
 response.send( success ); 
 },
 function( failure )
 {
 response.send( failure );
 });
 
 Backendless.UserService.register( user, async );
};

By the way, you don’t need to declare Backendless variable and call initApp() on it - this is already implemented internally for you.

Regards,
Sergey

3

Thank you Sergey for the very quick response! You were correct about the nature of the error, switching to use the asynch call worked.

Thanks!