Function setupTimeoutWarning

packages/aws-serverless/src/sdk.ts:113–136

(context: Context, options: WrapperOptions)

}

function setupTimeoutWarning(context: Context, options: WrapperOptions): NodeJS.Timeout | undefined {
  // In seconds. You cannot go any more granular than this in AWS Lambda.
  const configuredTimeout = Math.ceil(tryGetRemainingTimeInMillis(context) / 1000);
  const configuredTimeoutMinutes = Math.floor(configuredTimeout / 60);
  const configuredTimeoutSeconds = configuredTimeout % 60;

  const humanReadableTimeout =
    configuredTimeoutMinutes > 0
      ? `${configuredTimeoutMinutes}m${configuredTimeoutSeconds}s`
      : `${configuredTimeoutSeconds}s`;

  if (options.captureTimeoutWarning) {
    const timeoutWarningDelay = tryGetRemainingTimeInMillis(context) - options.timeoutWarningLimit;

    return setTimeout(() => {
      withScope(scope => {
        scope.setTag('timeout', humanReadableTimeout);
        captureMessage(`Possible function timeout: ${context.functionName}`, 'warning');
      });
    }, timeoutWarningDelay) as unknown as NodeJS.Timeout;
  }

  return undefined;
}

export const AWS_HANDLER_HIGHWATERMARK_SYMBOL = Symbol.for('aws.lambda.runtime.handler.streaming.highWaterMark');
export const AWS_HANDLER_STREAMING_SYMBOL = Symbol.for('aws.lambda.runtime.handler.streaming');