NodeJS Promises

index.js

"use strict";

const Promise = require('bluebird')

class MyAction {

  constructor (name, nextAction, preFail, postFail) {
    this.name = name
    this.nextAction = nextAction
    this.preFail = preFail
    this.postFail = postFail
  }

  execute (context) {
    return Promise.bind(this)
    .then(function () {
      console.log(this.name+' pre')
      if (this.preFail) {
        throw new Error(this.name+' pre')
      }
    })
    .then(function () {
      console.log(this.name+' mid')
      if (this.nextAction) {
        return this.nextAction.execute(context)
      }
    })
    .then(function () {
      console.log(this.name+' post')
      if (this.postFail) {
        throw new Error(this.name+' post')
      }
    })
    .catch(function (e) {
      console.log(this.name+' error:', e)
      throw e
    })
  } // execute

} // class

let a3 = new MyAction('treci', null, true, false);
let a2 = new MyAction('drugi', a3, false, false);
let a1 = new MyAction('prvi', a2, false, false);

a1.execute({})
.catch(function (e) {
  console.log('TOP error', e, e.stack)
})

output

prvi pre
prvi mid
drugi pre
drugi mid
treci pre
treci error: [Error: treci pre]
drugi error: [Error: treci pre]
prvi error: [Error: treci pre]
TOP error [Error: treci pre] Error: treci pre
    at MyAction.<anonymous> (d:\www\home\tmilos\nodejs_action_test\promise.js:19:15)
    at MyAction.tryCatcher (d:\www\home\tmilos\nodejs_action_test\node_modules\bluebird\js\release\util.js:16:23)
    at Promise._settlePromiseFromHandler (d:\www\home\tmilos\nodejs_action_test\node_modules\bluebird\js\release\promise.js:502:31)
    at Promise._settlePromise (d:\www\home\tmilos\nodejs_action_test\node_modules\bluebird\js\release\promise.js:559:18)
    at Promise._settlePromiseCtx (d:\www\home\tmilos\nodejs_action_test\node_modules\bluebird\js\release\promise.js:596:10)
    at Async._drainQueue (d:\www\home\tmilos\nodejs_action_test\node_modules\bluebird\js\release\async.js:143:12)
    at Async._drainQueues (d:\www\home\tmilos\nodejs_action_test\node_modules\bluebird\js\release\async.js:148:10)
    at Immediate.Async.drainQueues [as _onImmediate] (d:\www\home\tmilos\nodejs_action_test\node_modules\bluebird\js\release\async.js:17:14)
    at processImmediate [as _immediateCallback] (timers.js:383:17)

package.json

{
  "name": "nodejs_promise_test",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "bluebird": "^3.4.0"
  }
}