Next, go through the steps to create a bot user. Make sure you set 'Development Slack Workspace' to the Slack Workspace you want to use. In order to get a bot user token, you first need to create a new Slack app.

Bot user tokens let you post messages as a bot user, with a custom name and avatar, as opposed to as an existing user. But, for the purposes of this article, I'll be using bot user tokens. For example, an OAuth token lets you post messages on behalf of a user. There are several types of Slack token, each with its own permissions. In order to make an API request to Slack, you need a Slack token. However, both and slack are fairly thin wrappers around the Slack API, so, for the purposes of this article, we'll just use axios. I've also used node-slack in the past, but that module is fairly out of date. There are two npm modules that I recommend for working with the Slack API: the official module and the slack module written primarily by Brian LeRoux of WTFJS fame. In this article, I'll explain the basics of how to send a Slack message from Node.js. Slack is the de facto communication platform for many companies, so there's a lot of demand for getting data from Node.js apps to Slack in realtime. Integrating with the Slack API is becoming an increasingly common task. When trying to share the file using the chat_postMessage method, if the username is overriden, the file wont be shared with the channel.This blog post was first published in The Code Barbarian Blog. So, it seems that files_upload_v2, when channel is not set, uploads the file as private (seems to be the intention as per API docs). When username is overriden, the file is not shared with the channel and the url does not function. The expectation is to see Terraform posting a message, containing a functioning link, for which a preview is rendered.

Slack api blocks