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Uploading Image Files to Slack Using Incoming Webhooks by Google Apps Script

This sample script is for uploading image files to Slack using Incoming Webhooks by Google Apps Script.

When users try to upload image files to Slack using Incoming Webhooks, it has been known that although the access token is required to directly upload them, Incoming Webhooks can upload them by using the tag of image_url. In this sample script, it uploads image files (BMP, GIF, JPEG and PNG) on Google Drive to Slack using Incoming Webhooks. The script is written by Google Apps Script.

In this sample, It supposes that there are image files on Google Drive.

Script :

pdtyreus

var http = require("https");
var querystring = require('querystring');

//2 attachments as JavaScript Objects
var attachments = [{
    fallback: "Attachment 1 Fallback",
    title: "This is Attachment 1",
    text: "Attachment 1 Text",
    color: "#3964db"
}, {