Bolt JS authorize function example

app.js

const { App } = require('@slack/bolt');

const installations = [
  {
    teamId: 'T12345678', // Copy a message URL to get the value
    botToken: 'xoxb-123-123-random', // Install the app from http://api.slack.com/apps
    botId: 'B12345678', // Run https://api.slack.com/methods/users.info/test with bot user id
    botUserId: 'U12345678', // To get this value, mention the bot user and inspect the message with Slack Developer Tools
  },
];

const authorizeFn = async ({ teamId, enterpriseId }) => {
  // Fetch team info from database
  for (const team of installations) {
    // Check for matching teamId and enterpriseId in the installations array
    if ((team.teamId === teamId) && (team.enterpriseId === enterpriseId)) {
      // This is a match. Use these installation credentials.
      return {
        // You could also set userToken instead
        botToken: team.botToken,
        botId: team.botId,
        botUserId: team.botUserId
      };
    }
  }
  throw new Error('No matching authorizations');
};

const app = new App({
  authorize: authorizeFn,
  logLevel: 'debug',
  signingSecret: process.env.SLACK_SIGNING_SECRET
});

app.command('/ping', async ({ command, ack, say }) => {
  say(`${command.text}`);
  ack();
});

app.use(args => {
  const copiedArgs = JSON.parse(JSON.stringify(args));
  copiedArgs.context.botToken = 'xoxb-***';
  if (copiedArgs.context.userToken) {
    copiedArgs.context.userToken = 'xoxp-***';
  }
  copiedArgs.client = {};
  copiedArgs.logger = {};
  args.logger.debug(
    "Dumping request data for debugging...\n\n" +
    JSON.stringify(copiedArgs, null, 2) +
    "\n"
  );
  args.next();
});

(async () => {
  await app.start(process.env.PORT || 3000);
  console.log('⚡️ Bolt app is running!');
})();

package.json

{
  "name": "bolt-oauth",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "start": "node app.js"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "@slack/bolt": "^1.6.0"
  }
}