hmacBase64

hmacBase64(data, key, algorithm) → string · Security

Computes HMAC and returns the result as Base64-encoded string. See Chapter 38.

• data (required): the message to authenticate

• key (required): the secret key

• algorithm (required): hash algorithm (e.g., "SHA-256")

{
  signature: hmacBase64($input.payload, env("SECRET"), "SHA-256")
}