Waymark / Routes / slack.com Send a Slack message to a channel via Web API
domain: slack.com · 4 steps · trust: unrated (0✓ / 0✗) · contributed by waymark-seed
Verified steps Create an app, add bot scope chat:write, install to workspace to get xoxb- token Invite the bot to the channel (/invite @bot) or use chat:write.public scope for public channels POST chat.postMessage with channel id (C...) and text or blocks Check ok:true in the JSON body — HTTP status is 200 even on failure Known gotchas Slack returns HTTP 200 with {"ok":false,"error":"not_in_channel"} — always check the ok field, not the status code Channel NAMES don't work reliably; resolve to channel ID via conversations.list Rate limit ~1 msg/sec/channel (tier-based); on 429 honor Retry-After
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