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slack-userpass-auth

This is a hack which enables you to use your Slack username and password to authenticate against the Slack SDK. This should not be used in production applications. I simply developed this as a quick way to auth against the Slack API without needing to create dedicated Slack apps (previously you would have used legacy tokens for this).

I've only done some brief testing of this against the Slack Web API, and the error handling is a bit light, but overall it works. This is just for testing functionality of the Slack API, not for running applications with your personal credentials.

Since this does not use a public API supported by Slack, the functionality of this module may or may not continue to work in the future.

Does not currently support 2FA. PRs welcome.

Install

npm install slack-userpass-auth
# or
yarn add slack-userpass-auth

CLI Usage

If you've installed the package globally, it should be available on your CLI

# Usage: slack-userpass-auth <workspace_name> <email> <password>
$ unset HISTFILE # Don't persist unencrypted credentials to filesystem
$ slack-userpass-auth example [email protected] this_isnt_a_real_password
{"cookie":"some_cookie_data_here","token":"auth_token_here"}
$ curl 'https://slack.com/api/chat.postMessage' \
    -H 'content-type: application/json; charset=utf-8' \
    -H "Cookie: some_cookie_data_here" \
    -H "Authorization: Bearer auth_token_here" \
    -d '{"channel":"ABCDEF123", "text":"Hello there"}'

Module Usage

const { WebClient } = require('@slack/web-api');
const slackUserPassAuth = require('slack-userpass-auth');

const WORKSPACE = 'example';
const USERNAME = '[email protected]';
const PASSWORD = 'this_isnt_a_real_password';

slackUserPassAuth(WORKSPACE, USERNAME, PASSWORD, function (cookie, authToken) {
    let web = new WebClient(authToken, {'headers': {'Cookie': cookie}});

    const conversationId = 'ABCDEF123';

    (async () => {
        // See: https://api.slack.com/methods/chat.postMessage
        let res = await web.chat.postMessage({ channel: conversationId, text: 'Hello there' });

        // `res` contains information about the posted message
        console.log('Message sent: ', res.ts);
    })();
});