promise.waterfall

promise-waterfall

Runs an array of promises in series, each passing their results to the next promise in the array.

Install

$ npm install promise.waterfall --save

Usage

var promiseWaterfall = require('promise.waterfall')

function makeAdder (a) {
  return function (b) {
    b = b || 0
    return Promise.resolve(a + b)
  }
}

var addOne = makeAdder(1)

promiseWaterfall([
  addOne  // 1
  addOne, // 2
  addOne  // 3
])
.then(console.log)
.catch(console.error)

API

promiseWaterfall(functions) -> promise

Runs the array of functions in series, waiting for each to resolve and passing each result to the next function in the array.

functions

Required Type: array[function]