ajax

There is an ajax operator on the Rx object.

const ajax: any;

Description

It creates an observable for an Ajax request with either a request object with url, headers, etc or a string for a URL.

Using ajax() to fetch the response object that is being returned from API.

import { ajax } from 'rxjs/ajax'; import { map, catchError } from 'rxjs/operators'; import { of } from 'rxjs'; const obs$ = ajax(`https://api.github.com/users?per_page=5`).pipe( map(userResponse => console.log('users: ', userResponse)), catchError(error => { console.log('error: ', error); return of(error); }) );

Using ajax.getJSON() to fetch data from API.

import { ajax } from 'rxjs/ajax'; import { map, catchError } from 'rxjs/operators'; import { of } from 'rxjs'; const obs$ = ajax.getJSON(`https://api.github.com/users?per_page=5`).pipe( map(userResponse => console.log('users: ', userResponse)), catchError(error => { console.log('error: ', error); return of(error); }) );

Using ajax() with object as argument and method POST with a two seconds delay.

import { ajax } from 'rxjs/ajax'; import { of } from 'rxjs'; const users = ajax({ url: 'https://httpbin.org/delay/2', method: 'POST', headers: { 'Content-Type': 'application/json', 'rxjs-custom-header': 'Rxjs' }, body: { rxjs: 'Hello World!' } }).pipe( map(response => console.log('response: ', response)), catchError(error => { console.log('error: ', error); return of(error); }) );

Using ajax() to fetch. An error object that is being returned from the request.

import { ajax } from 'rxjs/ajax'; import { map, catchError } from 'rxjs/operators'; import { of } from 'rxjs'; const obs$ = ajax(`https://api.github.com/404`).pipe( map(userResponse => console.log('users: ', userResponse)), catchError(error => { console.log('error: ', error); return of(error); }) );