P-auto NPM | npm.io

p-auto

Like async.auto() but for Promise

Useful when you need to run multiple promises concurrently which have different dependencies between each other.

Install

$ npm install --save p-auto

Usage

const pAuto = require('p-auto');

const tasks = {
  foo: 1,
  bar: () => Promise.resolve(2),
  faz: ['foo', 'bar', result => result.foo + result.bar]
};

pAuto(tasks).then(result => {
  console.log(result);
  //=> {foo: 1, bar: 2, faz: 3}
});

API

pAuto(tasks)

Returns a Promise that is fulfilled when all tasks are fulfilled, or rejects if any of the tasks reject. The fulfilled value is the same as tasks, but with a fulfilled version of each entry value.

tasks

Type: Object

The entry value can either be a resolver or an array of dependencies, with the resolver being the last value. A resolver can either be a value or a function that will be passed the result of the defined dependencies.