External version of Firebase API

external_api.ts

export const externalAwesomeAPI = functions.https.onRequest(async (req, res) => {
  if (req.method !== "POST") {
    return res.sendStatus(403);
  }
  const context: FunctionContext = await token2context(req.body.token);
  const intermediateRequest: IntermediateRequestInterface = parseIntermediateRequest(req.body);
  try {
    await awesomeHandler(intermediateRequest, context);
    return res.sendStatus(200);
  } catch (err) {
    return res.sendStatus(500);
  }
});