How to use the Gmail API, OAuth2 for Apps Script, and Domain-Wide Delegation to set email signatures for users in a G Suite domain

This method uses the Gmail API, the OAuth2 for Apps Script library, and “Domain-wide Delegation of Authority”, which is a way for G Suite admins to make API calls on behalf of users within their domain. Step 1: Make sure the OAuth2 For Apps Script library is added to your project. Step 2: Set up … Read more

Create Spreadsheet using Google Spreadsheet API in Google drive in Java

I finally with help from here managed to create such connection. Everything is working as before. Steps You have to do is: Register at https://console.developers.google.com Create new project Under APIs & Auth -> Credential -> Create New Client ID for Service Account When the Client ID is generated You have to generate P12 key. Client … Read more

‘observe’ on ‘MutationObserver’: parameter 1 is not of type ‘Node’

As I mentioned in a comment, and Xan stated an answer, the error makes it clear that the result of document.querySelectorAll(“.no”)[2] does not evaluate to a Node. From the information you provided in a comment, it is clear that the issue is that the node you desire to observe does not exist when your code … Read more

GMAIL API for sending Email with attachment

// Get the canvas from the DOM and turn it into base64-encoded png data. var canvas = document.getElementById(“canvas”); var dataUrl = canvas.toDataURL(); // The relevant data is after ‘base64,’. var pngData = dataUrl.split(‘base64,’)[1]; // Put the data in a regular multipart message with some text. var mail = [ ‘Content-Type: multipart/mixed; boundary=”foo_bar_baz”\r\n’, ‘MIME-Version: 1.0\r\n’, ‘From: … Read more