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README.md

ngx-jsonapi

angular jsonapi

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This is a JSON API library for Angular 6+. Please use [ts-angular-jsonapi](https://github.com/reyesoft/ts-angular-jsonapi) for AngularJS.

Online demo

You can test library on this online example πŸ‘Œ http://ngx-jsonapi.reyesoft.com/.

demo app

Data is obtained from Json Api Playground server.

Supported features

  • Cache (on memory): TTL for collections and resources. Before a HTTP request objects are setted with cached data.
  • Cache on localstorage
  • Pagination
  • Sorting
  • Include param support (also, when you save)
  • Equal requests, return a same ResourceObject on memory
  • Default values for a new resource (hydrator).

Migration

Usage

Just install, configure and learn with examples.

First of all, it's advisable to read Jsonapi specification. Understanding JsonApi documents structure is recommended.

Installation

yarn add ngx-jsonapi@2.0.0-rc.4 --save
# or npm if you wish...

Dependecies and customization

  1. Add Jsonapi dependency.
  2. Configure your url and other paramemeters.
  3. Inject JsonapiCore somewhere before you extend any class from Jsonapi.Resource.
import { NgModule } from '@angular/core';
import { NgxJsonapiModule } from 'ngx-jsonapi';

@NgModule({
    imports: [
        NgxJsonapiModule.forRoot({
            url: '//jsonapiplayground.reyesoft.com/v2/'
        })
    ]
})
export class AppModule {}

Examples

Like you know, the better way is with examples. Lets go! πŸš€

Defining a resource

authors.service.ts

import { Injectable } from '@angular/core';
import { Autoregister, Service, Resource, DocumentCollection, DocumentResource } from 'ngx-jsonapi';
import { Book } from '../books/books.service';
import { Photo } from '../photos/photos.service';

export class Author extends Resource {
    public attributes = {
        name: 'default name',
        date_of_birth: ''
    };

    public relationships = {
        books: new DocumentCollection<Book>(),
        photo: new DocumentResource<Photo>()
    };
}

@Injectable()
@Autoregister()
export class AuthorsService extends Service<Author> {
    public resource = Author;
    public type = 'authors';
}

Get a collection of resources

Controller

import { Component } from '@angular/core';
import { DocumentCollection } from 'ngx-jsonapi';
import { AuthorsService, Author } from './../authors.service';

@Component({
    selector: 'demo-authors',
    templateUrl: './authors.component.html'
})
export class AuthorsComponent {
    public authors: DocumentCollection<Author>;

    public constructor(private authorsService: AuthorsService) {
        authorsService
            .all({
                // include: ['books', 'photos'],
            })
            .subscribe(authors => (this.authors = authors));
    }
}

View for this controller

<p *ngFor="let author of authors.data; trackBy: authors.trackBy">
  id: {{ author.id }} <br />
  name: {{ author.attributes.name }} <br />
  birth date: {{ author.attributes.date_of_birth | date }}
</p>

Collection sort

Ex: name is a authors attribute, and makes a query like /authors?sort=name,job_title

let authors = authorsService.all({
    sort: ['name', 'job_title']
});

Collection filtering

Filter resources with attribute: value values. Filters are used as 'exact match' (only resources with attribute value same as value are returned). value can also be an array, then only objects with same attribute value as one of values array elements are returned.

authorsService.all({
    remotefilter: { country: 'Argentina' }
});

Get a single resource

From this point, you only see important code for this library. For a full example, clone and see demo directory.

authorsService.get('some_author_id');

More options? Include resources when you fetch data (or save!)

authorsService.get('some_author_id', { include: ['books', 'photos'] });

TIP: these parameters work with all() and save() methods too.

Add a new resource

let author = this.authorsService.new();
author.attributes.name = 'Pablo Reyes';
author.attributes.date_of_birth = '2030-12-10';
author.save();

Need you more control and options?

let author = this.authorsService.new();
author.attributes.name = 'Pablo Reyes';
author.attributes.date_of_birth = '2030-12-10';

// some_book is an another resource like author
let some_book = booksService.get(1);
author.addRelationship(some_book);

// some_publisher is a polymorphic resource named company on this case
let some_publisher = publishersService.get(1);
author.addRelationship(some_publisher, 'company');

// wow, now we need detach a relationship
author.removeRelationship('books', 'book_id');

// this library can send include information to server, for atomicity
author.save({ include: ['book'] });

// mmmm, if I need get related resources? For example, books related with author 1
let relatedbooks = booksService.all({ beforepath: 'authors/1' });

// you need get a cached object? you can force ttl on get
let author$ = authorsService.get(
    'some_author_id',
    { ttl: 60 } // ttl on seconds (default: 0)
);

Update a resource

authorsService.get('some_author_id').suscribe(author => {
    this.author.attributes.name += 'New Name';
    this.author.save(success => {
        console.log('author saved!');
    });
});

Pagination

authorsService.all({
  // get page 2 of authors collection, with a limit per page of 50
  page: { number: 2 ;  size: 50 }
});

Collection page

  • number: number of the current page
  • size: size of resources per page (it's sended to server by url)
  • information returned from server (check if is avaible) total_resources: total of avaible resources on server resources_per_page: total of resources returned per page requested

Local Demo App

You can run JsonApi Demo App locally following the next steps:

git clone git@github.com:reyesoft/ngx-jsonapi.git
cd ngx-jsonapi
yarn
yarn start

We use as backend Json Api Playground.

Colaborate

Check Environment development file πŸ˜‰.