Authentication for Google API
问题 I'm trying to understand the flow how to authenticate user on WEB client (JS), and then use Google API on my back-end server (ASP.NET MVC application), on behalf of authenticated user for retrieving users contacts list. Here the current flow that I use: 1.In HTML I use google JS client: https://apis.google.com/js/client.js: function auth(callback) { var config = { 'client_id': '***********', 'scope': 'https://www.googleapis.com/auth/contacts.readonly' }; config.immediate = true; gapi.auth