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POST
The event subscription callback endpoint for the Feishu Open Platform. This endpoint does not require authentication and is called directly by Feishu servers.

Supported Event Types

Flow

  1. Feishu sends url_verification → returns { challenge } to complete verification
  2. User sends a message in Feishu → triggers im.message.receive_v1 event
  3. Deduplication check (event_id) → asynchronous background processing → quickly returns { code: 0 } to Feishu