You can run this app by following the steps below:
identity.basic & identity.email to User Token Scopesexport SLACK_CLIENT_ID=
export SLACK_CLIENT_SECRET=
npm i
npx node app.js| const express = require('express'); | |
| const app = express(); | |
| const port = 3000; | |
| // Display the Sign in with Slack button | |
| app.get('/sign-in', async (_, res) => { | |
| // TODO: adding one-time state parameter as well | |
| const scopes = "identity.basic,identity.email"; // don't mix other non-`identity.` scopes here | |
| // if you already have another Redirect URL for "Add to Slack", you may need to pass redirect_uri as well | |
| const url = `https://slack.com/oauth/v2/authorize?user_scope=${scopes}&client_id=${process.env.SLACK_CLIENT_ID}`; | |
| res.status(200) | |
| .header('Content-Type', 'text/html; charset=utf-8') | |
| // https://api.slack.com/docs/sign-in-with-slack#generator | |
| .send(`<html> | |
| <body> | |
| <a href="${url}"><img alt="Sign in with Slack" height="40" width="172" src="https://platform.slack-edge.com/img/sign_in_with_slack.png" srcset="https://platform.slack-edge.com/img/sign_in_with_slack.png 1x, https://platform.slack-edge.com/img/sign_in_with_slack@2x.png 2x" /></a> | |
| </body> | |
| </html> | |
| `); | |
| }); | |
| // Verify the installation | |
| const { WebClient } = require('@slack/web-api'); | |
| const client = new WebClient(); | |
| app.get('/sign-in-callback', async (req, res) => { | |
| // TODO: verify state parameter | |
| try { | |
| const response = await client.oauth.v2.access({ | |
| client_id: process.env.SLACK_CLIENT_ID, | |
| client_secret: process.env.SLACK_CLIENT_SECRET, | |
| code: req.query.code, | |
| }); | |
| console.log(response); | |
| const identity = await client.users.identity({ | |
| token: response.authed_user.access_token | |
| }); | |
| console.log(identity); | |
| // Now you can assume this user logged in with his/her Slack account | |
| // TODO: set-cookie etc | |
| res.status(200).send("You've logged in with your Slack account!"); | |
| } catch (e) { | |
| console.log(e); | |
| res.status(500).send("Something wrong!"); | |
| } | |
| }); | |
| app.listen(port, () => { | |
| console.log(`Example app listening at http://localhost:${port}`) | |
| }); |
| { | |
| "name": "sign-in-with-slack-app", | |
| "version": "1.0.0", | |
| "description": "", | |
| "main": "app.js", | |
| "scripts": { | |
| "test": "echo \"Error: no test specified\" && exit 1" | |
| }, | |
| "keywords": [], | |
| "author": "Slack Technologies, Inc.", | |
| "license": "MIT", | |
| "dependencies": { | |
| "@slack/web-api": "^6.2.0-rc.0", | |
| "express": "^4.17.1" | |
| } | |
| } |