https://github.com/arpitgo4/promise-obj

Promise.all's implementation for objects.
https://github.com/arpitgo4/promise-obj

async chai chai-as-promised mocha nodejs npm-package promise tdd

Last synced: 25 days ago
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Promise.all's implementation for objects.

• Host: GitHub
• URL: https://github.com/arpitgo4/promise-obj
• Owner: arpitgo4
• License: gpl-3.0
• Created: 2019-05-16T08:17:45.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2019-05-21T13:26:56.000Z (over 5 years ago)
• Last Synced: 2024-10-01T14:57:20.769Z (about 1 month ago)
• Topics: async, chai, chai-as-promised, mocha, nodejs, npm-package, promise, tdd
• Language: JavaScript
• Size: 61.5 KB
• Stars: 0
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Promise.all for objects

Resolves an object containing deeply nested promises in sub-objects and arrays.

It internally uses Promise.all for concurrent resolution of promises.

### To Install

```

npm install --save @arpitgo4/promise-obj

```

### How to use ?

#### Promise resolution

```javascript

const promise-obj = require('@arpitgo4/promise-obj');

const p3 = Promise.resolve(3);

const p5 = Promise.resolve(5);

const p7 = Promise.resolve(7);

const p9 = Promise.resolve(9);

const p10 = Promise.resolve(10);

const p12 = Promise.resolve(12);

const p13 = Promise.resolve(13);

const p15 = Promise.resolve(15);

const p16 = Promise.resolve(16);

const test_obj = {

    one: 1,

    two: {

        three: p3,

        four: {

            five: p5,

            six: {

                seven: p7,

                eight: [ 8, p9, ],

            },

        }

    },

    ten: [ p10, 11, p12, { thirteen: p13, fourteen: { fifteen: p15 } }, { sixteen: p16 } ],

};

return promise-obj(test_obj)

.then(result_obj => console.log(result_obj))

.catch(err => console.error(err));

// result_obj:

// {

//     one: 1,

//     two: {

//         three: 3,

//         four: {

//             five: 5,

//             six: {

//                 seven: 7,

//                 eight: [ 8, 9, ],

//             },

//         }

//     },

//     ten: [ 10, 11, 12, { thirteen: 13, fourteen: { fifteen: 15 } }, { sixteen: 16 } ],

// }

```

#### Promise rejection

Promise will reject if any of the nested promises fails, same as Promise.all.

```javascript

const error = new Error('some error!');

const test_obj = {

    one: 1,

    two: Promise.reject(error),

    three: 3,

};

return promise-obj(test_obj)

.catch(error => console.log(error)); // some error!

```

### How to contribute

```

## run mocha in watch mode

npm run test:watch

```