Async Await Bites Again

async-happy-path.ts

const someDatabaseLogic: RequestHandler = async (req, res) => {
  await setTimeout(1000)
  res.end('Goodbye!')
}

export const someAPIHandler: RequestHandler = async (req, res, next) => {
  try {
    console.log('we are handling a requst')
    return someDatabaseLogic(req, res, next)
  } catch (e) {
    console.log('An error was thrown trying to handle the request.')
    console.log('Going to tell Express about this error so the client knows!')
    return next(e)
  }
}

async-sad-path-but-handled.ts

const someSubHandler: RequestHandler = async (req, res) => {
  await setTimeout(1000)
  throw new Error('OH NO SOME DB ERROR FAILED!')
  res.end('Goodbye!')
}

export const getPostById: RequestHandler = async (req, res, next) => {
  try {
    console.log('we are handling a requst')
    await someSubHandler(req, res, next)
  } catch (e) {
    console.log('An error was thrown trying to handle the request.')
    console.log('Going to tell Express about this error so the client knows!')
    return next(e)
  }
}

async-sad-path.ts

const someSubHandler: RequestHandler = async (req, res) => {
  await setTimeout(1000)
  throw new Error('OH NO SOME DB ERROR FAILED!')
}

export const getPostById: RequestHandler = async (req, res, next) => {
  try {
    console.log('we are handling a requst')
    return someSubHandler(req, res, next)
  } catch (e) {
    console.log('An error was thrown trying to handle the request.')
    console.log('Going to tell Express about this error so the client knows!')
    return next(e)
  }
}