ionic3: Http vs HttpClient | Phaisarn Sutheebanjard

ใช้ HttpClient ดีกว่า Http

Use the HttpClient class from HttpClientModule if you’re using Angular 4.3.x and above:

import { HttpClientModule } from '@angular/common/http';

@NgModule({
 imports: [
   BrowserModule,
   HttpClientModule
 ],
 ...

 class MyService() {
    constructor(http: HttpClient) {...}

import { HttpClientModule } from '@angular/common/http';

@NgModule({

imports: [

BrowserModule,

HttpClientModule

...

class MyService() {

constructor(http: HttpClient) {...}

It’s an upgraded version of http from @angular/http module with the following improvements:

Interceptors allow middleware logic to be inserted into the pipeline
Immutable request/response objects
Progress events for both request upload and response download

Link

Difference between HTTP and HTTPClient in angular 4?