Avoid async / await try - catch hell

httpreq.ts

export async function httpreq(fn: () => Promise<any>): Promise<[any, any]> {
 try {
  const res = await fn()
  return [res, null]
 } catch(err) {
  return [null, err]
 }
}


// usage
const request = async () => await fetch('https://foo.bizz')
const [data, error] = await httpreq(request)