Source type

LINE Source Configuration

LINE sources receive Messaging API webhook events and verify the LINE channel secret signature.

LINEPOST, PUT, PATCH, DELETEChannel SecretCommunication
LINE webhook signature documentationAll source types
LINE sends webhook traffic to a FastHook source, FastHook validates the provider contract, records the request, and routes accepted events through connections to destinations.LINEProviderPOST, PUT, PATCH, DELETESignedFastHookSource URLLINEProvider credentialsignatureVerify before queue401 on auth failure405 on wrong methodAcceptedRequestverified: trueConnections route the accepted request to destinationsFilters, transformations, retries, replay, and destination signatures stay downstream from source verification.

LINE configuration

Create a LINE source, keep POST and PUT and PATCH and DELETE enabled, and provide the configured Channel Secret values for provider signature. FastHook uses these settings to validate each LINE delivery before it enters the routing workflow.

Source Type

LINE

Allowed methods

POST, PUT, PATCH, DELETE

Authentication

Provider signature

Credential fields

Channel Secret

LINE source config
{
  "type": "LINE",
  "config": {
    "auth_type": "PROVIDER_SIGNATURE",
    "auth": {
      "provider": "LINE",
      "webhook_signing_secret": "provider-secret"
    },
    "allowed_http_methods": ["POST","PUT","PATCH","DELETE"]
  }
}

LINE request contract

FastHook computes a base64 HMAC-SHA256 digest over the raw request body and compares it to x-line-signature.

POSTPUTPATCHDELETE

LINE headers

Preserve x-line-signature when sending LINE test deliveries. FastHook evaluates this request context before accepting the payload, so missing or modified values remain visible as rejected requests instead of routed events.

x-line-signature

Base64 HMAC-SHA256 signature over the raw request body.

LINE setup

  1. Set the LINE Messaging API webhook URL to the FastHook Source URL.
  2. Paste the channel secret into FastHook.
  3. Do not modify the raw request body before verification.

Continue with LINE