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OpenCorvus

LINE

LINE adapter using Messaging API Webhook.

Prerequisites

  1. Create a Provider and Channel (Messaging API) at LINE Developers.
  2. Obtain Channel Access Token and Channel Secret.
  3. Webhook URL: https://<your-public-host>/line; set Use Webhook = Enabled.

Environment

Terminal window
export LINE_CHANNEL_ACCESS_TOKEN=...
export LINE_CHANNEL_SECRET=...
export LINE_WEBHOOK_HOST=0.0.0.0
export LINE_WEBHOOK_PORT=16670
export LINE_WEBHOOK_PATH=/line

Thread semantics

LINE is 1:1 or group; thread key = userId or groupId.

Troubleshooting

  • Signature validation failed: LINE_CHANNEL_SECRET wrong; signature algorithm is HMAC-SHA256.
  • Reply token expired: this adapter sends task responses with LINE push messages; reply tokens are only part of incoming webhook metadata.