prepareOptions (Webhooks)

Normalizes and enriches webhook test header options with defaults for timestamp, scheme, and crypto provider, and prepares a payload string and header generator.

  function prepareOptions(
    opts: WebhookTestHeaderOptions
  ): Omit<
    WebhookTestHeaderOptions,
    'timestamp' | 'scheme' | 'cryptoProvider'
  > & {
    timestamp: number;
    scheme: string;
    cryptoProvider: CryptoProvider;
    payloadString: string;
    generateHeaderString: (signature: string) => string;
  } {
    if (!opts) {
      throw new StripeError({
        message: 'Options are required',
      });
    }

    const timestamp =
      (opts.timestamp && Math.floor(opts.timestamp)) ||
      Math.floor(Date.now() / 1000);
    const scheme = opts.scheme || signature.EXPECTED_SCHEME;
    const cryptoProvider = opts.cryptoProvider || getCryptoProvider();
    const payloadString = `${timestamp}.${opts.payload}`;

    const generateHeaderString = (signature: string): string =>

... (truncated -- full source via MCP)