angular2bknd-sdk

Backand SDK for Angular 2

Compatible with AngularJS 2.0.0

Install

npm install angular2bknd-sdk --save

Dependencies

npm install @types/node --save-dev 
npm install @types/socket.io-client --save-dev 

Import

In src/app/app.module.ts,

import { BackandService } from 'angular2bknd-sdk';

add BackandService to the providers array.

In each component where you use Backand, import it:

import { BackandService } from 'angular2bknd-sdk';

and then in the constructor:

constructor(private backandService:BackandService){}

Use it as this.backandService

Configure secure calls to Backand's REST API

Backand uses OAuth2 authentication, which requires that you include the authentication token in every HTTP call.

In src/app/app.component.ts:

    this.backandService.setAppName('your app name');
    this.backandService.setSignUpToken('your backand signup token');
    this.backandService.setAnonymousToken('your backand anonymous token');

Mobile

In src/app/app.component.ts:

this.backandService.setIsMobile(true);

Do CRUD Operations on Your Database

To fetch, create, and filter rows, from an object, say todo, the CRUD functions in BackandService, should receive 'todo' as their first argument

• Read one row

    this.backandService.getOne('todo')
        .subscribe(
                data => {
                },
                err => this.backandService.logError(err),
                () => console.log('OK')
            );

• Create

    this.backandService.create('todo', { name: this.name, description: this.description})
        .subscribe(
                data => {
                },
                err => this.backandService.logError(err),
                () => console.log('OK')
            );

• Update

    this.backandService.update('todo', this.id, { name: this.name, description: this.description})
        .subscribe(
                data => {
                },
                err => this.backandService.logError(err),
                () => console.log('OK')
            );

• Query

When q is set to your search pattern, define a filter:

    let filter = [{
                fieldName: 'name',
                operator: 'contains',
                value: q
              }];

Or use NoSQL syntax:

    let filter = {
        "q":{
            "name" : { 
                "$like" :  q
            }
        }
    }

and call filterItem

    this.backandService.getList('todo', null, null, filter)
            .subscribe(
                data => {
                    console.log("subscribe", data);
                    this.items = data;
                },
                err => this.backandService.logError(err),
                () => console.log('OK')
            );

Social Signup

The app opens a dialog supplied by the social network.

    var $obs = this.backandService.socialSignup(provider, spec);
    $obs.subscribe(                
      data => {
          console.log('Sign up succeeded with:' + provider);           
      },
      err => {
          this.backandService.logError(err)
      },
      () => console.log('Finish Auth'));

• provider is one of: facebook, twitter, googleplus, github

• spec optionally defines the look of the social network sign in window, like:

  left=1, top=1, width=600, height=600

Socket Service

• Socket login and logout are done automatially as part of the login and logout calls, respectively.

• To subscribe to event items_updated from server side via sockets, call this.backandService.on and in your controller, subscribe with:

    this.backandService.on('items_updated')
      .subscribe(
            data => {
                console.log("items_updated", data);
            },
            err => {
                console.log(err);
            },
            () => console.log('received update from socket')
        );

Get User Details

Fetch:

    this.backandService.getUserDetails(true).subscribe(
       data=> {
           console.log(data);
       },
       err=> this.backandService.logError(err),
       () => console.log('Got Details')
       );

Caches user details in the app. The force parameter can cause it to fetch from it from Backand as in the call above.

Backand Storage

Create Backand Action

Create a server side action in Backand by going into the items object actions tab and clicking on the Back& Files icon. Name your action "files"

File Upload

    backand.uploadFile('todo', 'files', fileName, base64Data).subscribe(
          data => { 
            console.log(data);
            //data.url is the url of the uploaded file
          }, 
          err => backand.logError(err),
          () => console.log('OK')
        );

File Delete

    backand.deleteFile('todo', 'files', fileName).subscribe(
          data => { 
          }, 
          err => backand.logError(err),
          () => console.log('OK')
        );