The functionality of the Google API JavaScript client is sporadic, intermittently working and occasionally

Having an issue with the Google API JavaScript client that I can't seem to solve.

Here's the script in my HTML file:

<script src="https://apis.google.com/js/client.js?onload=init"></script> 

This is what my JavaScript code looks like:

function init() {
      window.initGapi();
}
(function() {
"use strict";
var appControllers = angular.module('appControllers', ['ui.bootstrap']);
appControllers.controller('MusicCtrl', function($window, $modal, $scope ) { 

        $scope.list = function() {

            gapi.client.youtube.search.list({
                q: 'q',
                part: 'snippet'
            }).execute(function(response) {
                $scope.songs = response.result.items;
                $scope.$apply();            
            });     

        }

        $window.initGapi = function() {
            $scope.$apply($scope.load_youtube_api);
        }

        $scope.load_youtube_api = function() {
            gapi.client.setApiKey('API_KEY');
            gapi.client.load('youtube', 'v3', function() {
                $scope.is_backend_ready = true;
                $scope.list();
            });
        }

The $scope.is_backend_ready in the HTML will load the $scope.list() markup only when the API is loaded completely.

Encountering this error:

Uncaught TypeError: window.initGapi is not a function
. It seems to happen randomly when loading the page. Oddly enough, setting a breakpoint on $scope.load_youtube_api during debugging allows the API to load successfully.

Confused as to why the initialization function window.initGapi(); can sometimes be undefined, especially when it should only load after the backend is ready. Got this code from Google Developers website, so I may be implementing it incorrectly. Any help would be appreciated.

Answer №1

It appears that the function is being called before the script has finished loading. To resolve this issue, try placing the $window.initGapi function inside a $timeout and then execute it after waiting for one second.

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