Examples of Async await retry

Async Await Retry (Failure).js

const ac = promise => promise.then(data => [null, data]).catch(err => [err])
const timeout = ms => new Promise(resolve => setTimeout(resolve, ms*1000))

const acFailRetry = asyncFn => async (...params) => {
    const retryBlock = async (retry=0, errs=[]) => {
    if(retry > 3)
      throw errs
    const [err, resp] = await ac(asyncFn(...params))

    if(err) {
      await timeout(retry)
      return await retryBlock(retry+1, errs.concat(err))
    }
    return resp
  }
  return await retryBlock()
}

let x = -4
const failFn = async (y,z) => {
  if(x!==2)
    throw `Error x:${++x}, ${y}, ${z}`
  return `success! ${x} ${y} ${z}`
}

const run = async() => await acFailRetry(failFn)('fake', 'params')

run()
.then(_=>console.log('res',_))
.catch(_=>console.log('err', _))

Async Await Retry (Success).js

const ac = promise => promise.then(data => [null, data]).catch(err => [err])
const timeout = ms => new Promise(resolve => setTimeout(resolve, ms*1000))

const acFailRetry = asyncFn => async (...params) => {
    const retryBlock = async (retry=0, errs=[]) => {
    if(retry > 3)
      throw errs
    const [err, resp] = await ac(asyncFn(...params))

    if(err) {
      await timeout(retry)
      return await retryBlock(retry+1, errs.concat(err))
    }
    return resp
  }
  return await retryBlock()
}

let x = 0
const failFn = async (y,z) => {
  if(x!==2)
    throw `Error x:${++x}, ${y}, ${z}`
  return `success! ${x} ${y} ${z}`
}

const run = async() => await acFailRetry(failFn)('fake', 'params')

run()
.then(_=>console.log('res',_))
.catch(_=>console.log('err', _))

without param curry.js

const ac = promise => promise.then(data => [null, data]).catch(err => [err])
const timeout = ms => new Promise(resolve => setTimeout(resolve, ms*1000))

const acFailRetry =async (asyncFn, ...params) => {
    const retryBlock = async (retry=0, errs=[]) => {
    if(retry > 3)
      throw errs
    const [err, resp] = await ac(asyncFn(...params))

    if(err) {
      await timeout(retry)
      return await retryBlock(retry+1, errs.concat(err))
    }
    return resp
  }
  return await retryBlock()
}

let x = 0
const failFn = async (y,z) => {
  if(x!==2)
    throw `Error x:${++x}, ${y}, ${z}`
  return `success! ${x} ${y} ${z}`
}

const run = async() => await acFailRetry(failFn, 'fake', 'params')

run()
.then(_=>console.log('res',_))
.catch(_=>console.log('err', _))