A simple pattern for working with async/await

async-await-result-pattern.js

async function doFoo () {
  let bar
  try {
    bar = await something_that_can_throw('a value')
  } catch (error) {
    return {error}
  }
  return {value: bar}
}

async function main () {
  const { error: fooError, value: fooVal } = await doFoo()
  if (fooError) {
    console.error('oops: %s', fooError.message)
    process.exit(1)
  }
  
  console.log('success: %j', fooVal)
}

main().then(() => {})