platform · inferred from evidence
Slack
A hosted platform for communication and collaboration, where the bot is deployed and used.
- Vercel: fetch from serverless function fails with "UND_ERR_CONNECT_TIMEOUT" on Node 20
A Next.js 14 app on Vercel (Node 20.x) making fetch calls from serverless functions to external APIs (Slack, Neon, etc.) intermittently failed with TypeError: fetch failed ... cause: ConnectTimeoutError ... code: 'UND_ERR_CONNECT_TIMEOUT'.
- channel_not_found when posting to DM or private group with Slack Bolt
Calling `app.client.chat.postMessage` in a Bolt app with the channel ID of a direct message or private group returns `channel_not_found`, while posting to public channels the bot was invited to works fine. The bot user OAuth token is used.
- Slack bot works in my workspace but doesn't respond when installed elsewhere (invalid_auth)
A Bolt (Socket Mode) Slack bot works perfectly in the developer's own workspace but does not respond to commands after being installed in other workspaces, even though installation succeeds and all permissions are accepted. The app surfaces
- Bolt WorkflowStep executes multiple times when deployed to Lambda / serverless
A Bolt WorkflowStep deployed to AWS Lambda (following Slack's bolt-js serverless deployment docs) has its `execute` function invoked multiple times per workflow run. In Socket Mode the same code worked perfectly. The duplicate invocations c
- incomplete_raw_credentials thrown when requesting a Slack user token
Triggering a Nango connection for Slack with user scopes via authorization_params throws incomplete_raw_credentials, because the SDK only handled the bot token path and dropped the user token. Users who need the Slack user token from oauth.
- TS2353: 'slack' does not exist in type 'MessageRecipient' (@trycourier/courier)
Sending to Slack via `@trycourier/courier` 6.0.6 with `courier.send({ message: { to: { slack: { access_token, channel } }, data: { message } } })` fails TypeScript compilation: `error TS2353: Object literal may only specify known properties