API/gmail Emails at master · KaranSofat/API · GitHub

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<!DOCTYPE html>
<html>
  <head>
    <meta charset='utf-8' />
  </head>
  <body>
    <!--Add a button for the user to click to initiate auth sequence -->
    <button id="authorize-button" style="visibility: hidden">Authorize</button>
    <div id="content"></div>

    <script type="text/javascript">

      // Enter a client ID for a web application from the Google Developer Console.
      // In your Developer Console project, add a JavaScript origin that corresponds to the domain
      // where you will be running the script.
      var clientId = '314354284988-irhm15kjojq0830vtb5i9udhkii60e7g.apps.googleusercontent.com';

      // To enter one or more authentication scopes, refer to the documentation for the API.
      var scopes = 'https://www.googleapis.com/auth/gmail.readonly';

      // Use a button to handle authentication the first time.
      function handleClientLoad() {
        window.setTimeout(checkAuth,1);
      }

      function checkAuth() {
        gapi.auth.authorize({client_id: clientId, scope: scopes, immediate: true}, handleAuthResult);
      }

      function handleAuthResult(authResult) {
        var authorizeButton = document.getElementById('authorize-button');
        if (authResult && !authResult.error) {
          authorizeButton.style.visibility = 'hidden';
          makeApiCall();
        } else {
          authorizeButton.style.visibility = '';
          authorizeButton.onclick = handleAuthClick;
        }
      }

      function handleAuthClick(event) {
        gapi.auth.authorize({client_id: clientId, scope: scopes, immediate: false}, handleAuthResult);
        return false;
      }

      // Load the API and make an API call.  Display the results on the screen.
      function makeApiCall() {
        gapi.client.load('gmail', 'v1', function() {
          listLabels();
          listMessages();
          getMessage();
        });
      }

      /**
       * Get all the Labels in the authenticated user's mailbox.
       */
      function listLabels() {
        var userId = "me";
        var request = gapi.client.gmail.users.labels.list({
          'userId': userId
        });
        request.execute(function(resp) {
          var labels = resp.labels;
          var output = ("<br>Query returned " + labels.length + " labels:<br>");
          for(var i = 0; i < labels.length; i++) {
            output += labels[i].name + "<br>";
          }
         // document.getElementById("content").innerHTML += output;
        });
      }

      /**
       * Get all the message IDs in the authenticated user's inbox.
       */
      function listMessages() {
        var userId = "me";
        var request = gapi.client.gmail.users.messages.list({
          'userId': userId
        });
        request.execute(function(resp) {
        console.log(resp);

          var messages = resp.messages;
          var output = "<br>Query returned " + messages.length + " messages:<br>";
          for(var i = 0; i < messages.length; i++) {
            output += messages[i].id + "<br>";
            var request = gapi.client.gmail.users.messages.get({
          'userId': "me",
          'id': messages[i].id
          });
          request.execute(function(resp) {
            console.log(resp);
            document.getElementById("content").innerHTML += resp.payload.headers[0].name+":";
            document.getElementById("content").innerHTML += resp.payload.headers[0].value+"<br>";
            document.getElementById("content").innerHTML += resp.payload.headers[17].name+":";
            document.getElementById("content").innerHTML += resp.payload.headers[17].value+"<br>";

            document.getElementById("content").innerHTML += resp.snippet+"<br><br>";
          });

          }
         // document.getElementById("content").innerHTML += output;
        });
      }

       function getMessage(userId, messageId)
       {


      }

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