如何同步Google和应用程序日历

Question

I'am trying to use google calendar in calendar application. I want to let user syncronize his google calendar events in app calendar. This is my code

<script async defer src="https://apis.google.com/js/api.js"
     onload="this.onload=function(){};handleClientLoad()"
     onreadystatechange="if (this.readyState === 'complete') this.onload()">
</script>                                                    
<script>function handleClientLoad()
        {
            gapi.load('client:auth2', initClient);
        }
        function initClient() {
            gapi.client.init({
                discoveryDocs: DISCOVERY_DOCS,
                clientId: CLIENT_ID,
                scope: SCOPES
            }).then(function(){
                loadEvents();
            })
        }
function loadEvents()
        {
            gapi.client.calendar.events.list({
                'calendarId': '<?=$option['selected']?>',
                'timeMin': (new Date()).toISOString(),
                'showDeleted': false,
                'singleEvents': true,
                'maxResults': 10,
                'orderBy': 'startTime'
            }).then(function(response) {    
                var gEvents = response.result.items;                            
            })

For me it works fine but for users shows authorization error. How can I fix it. I need to send authorization key for users.

Answer 1

If you are having issues with authorization, you can check these points. Your error was specified in the documentation and can be resolved by the following:

• Get a new access token using the long-lived refresh token.
• If this fails, direct the user through the OAuth flow, as described in Authorizing requests with OAuth 2.0 .
• If you are seeing this for a service account, check that you have successfully completed all the steps in the service account page .