@postel/edge

new MalformedHeader(message, options?): MalformedHeader;

new PostelError(message, options?): PostelError;

Error.constructor

new RawBytesMismatchDetected(message, options?): RawBytesMismatchDetected;

new SignatureInvalid(message, options?): SignatureInvalid;

new TimestampTooOld(message, options?): TimestampTooOld;

new UnknownKeyId(message, options?): UnknownKeyId;

[key: string]: unknown

type PostelErrorCode = 
  | "SIGNATURE_INVALID"
  | "TIMESTAMP_TOO_OLD"
  | "MALFORMED_HEADER"
  | "UNKNOWN_KEY_ID"
  | "RAW_BYTES_MISMATCH_DETECTED";

type Secret = string;

type SecretOrKeyset = 
  | Secret
  | ReadonlyArray<Secret>
  | Keyset;

type WebhookHeaders = Readonly<Record<string, string>>;

function createKeyset(options): Keyset;

function dedup(messageId, options): Promise<DedupResult>;

function inMemoryDedupAdapter(options?): DedupAdapter;

function jwksHandler(options): (request) => Response;

function signFixture<TData>(options): Promise<SignedFixture>;

function verify<TData>(
   rawBody, 
   headers, 
   secretOrKeyset, 
options?): Promise<VerifyResult<TData>>;