Source type

Ramp Source Configuration

Ramp sources receive transaction, bill, application, request, user, and vendor events with native HMAC-SHA256 verification.

RAMPPOSTWebhook SecretPayments
Ramp webhook documentationAll source types
Ramp sends webhook traffic to a FastHook source, FastHook validates the provider contract, records the request, and routes accepted events through connections to destinations.RampProviderPOSTSignedFastHookSource URLRAMPProvider 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.

Ramp configuration

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

Source Type

RAMP

Allowed methods

POST

Authentication

Provider signature

Credential fields

Webhook Secret

Ramp source config
{
  "type": "RAMP",
  "config": {
    "auth_type": "PROVIDER_SIGNATURE",
    "auth": {
      "provider": "RAMP",
      "webhook_signing_secret": "provider-secret"
    },
    "allowed_http_methods": ["POST"]
  }
}

Ramp request contract

FastHook computes HMAC-SHA256 over the raw request body and compares the hexadecimal result with X-Ramp-Signature.

POST

Ramp headers

Preserve X-Ramp-Signature when sending Ramp 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-Ramp-Signature

Hex HMAC-SHA256 of the unmodified request body.

Ramp setup

  1. Create a Ramp source and copy its Source URL.
  2. Create the webhook subscription for the required Ramp event types.
  3. Save the secret returned when Ramp creates the subscription in FastHook.
  4. Complete Ramp endpoint verification with the challenge received at the source, then send a test event.

Continue with Ramp