Creating user through REST API & ACF

• ReeX

• October 13, 2022 at 6:17 pm

I use the following Javascript code to create WordPress users through REST API:

var retObject = {
    endPoint: '/wp/v2/users', 
    httpCode: 0,
    userList: []
    };
  var myRoot = 'https://www.mywpsite.com/wp-json'  
  var ret = initJWTAuthentication(myRoot);
  if (ret.httpCode != 200){
    retObject.endPoint = ret.endPoint;
    retObject.httpCode = ret.httpCode;
    return retObject;
  }
    var queryParams = '?username=paul.rogers&name=Paul Rogers&first_name=Paul&last_name=Rogers&[email protected]&password=1234567';

  // Set REST API invocation parameters (WP USERS)
  options = {
        'method': 'POST',
        'followRedirects' : false,
        'muteHttpExceptions': true,
        'headers' : {'Authorization' : 'Bearer ' + ret.token}
      }

    var response = UrlFetchApp.fetch(myRoot + retObject.endPoint + queryParams, options);
    var data = response.getContentText();
    var headers = response.getAllHeaders();
    retObject.httpCode = response.getResponseCode();
    var user = JSON.parse(data);

This works fine and created user data is returned. Now, the question:
Returned data upon creation includes a custom field (theClass), which looks like this, given the above code: user.acf.theClass
To populate this custom field, do I need to issue a secondary REST POST to update the user’s custom field, or is there a way to instruct REST API to include this custom data, hence using only one call to allow user creation including custom field?