recursive.promise.js

function testApiRecursive (data) {
  console.log('calling it', data)
  return Promise.resolve().then(() => {
    if (Math.round(Math.random() * 10000) % 20 === 0) {
      // true 1/20th of the time
      return data
    } else {
      return new Promise((resolve) => {
        setTimeout(resolve, 250) // wait 250ms to run again
      }).then(testApiRecursive.bind(this, data))
    }
  })
}

testApiRecursive(255).then((data) => {
  console.log('tadah', data)
}).catch((error) => {
  console.log('error', error)
})