Ionic 4 native http get empty data in html

Ionic Framework
1

I am beginner in ionic 4. And I am trying to get json data from an api using native http. My code is working fine with a json data response, but the problem is I got empty data in html

json

{
  "userId": 1,
  "id": 1,
  "title": "delectus aut autem",
  "completed": false
}

main code :

import { Component } from '@angular/core';
import { HTTP } from '@ionic-native/http/ngx';

@Component({
  selector: 'app-home',
  templateUrl: 'home.page.html',
  styleUrls: ['home.page.scss'],
})
export class HomePage {

  object : any  ;
  constructor(private http: HTTP) {
   this.http.get('https://jsonplaceholder.typicode.com/todos/1',{},{})
   .then(res=> {

    this.object = res.data

  })    .catch(error => this.object = error);
  }


}

if l use only object in html he is return json response

 {{object}}

but if l want get title form data json l got empty page

 {{object.title}}
2

No need to use the plugin, you can do this with stock Angular

main.code

import { Component, OnInit } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Component({
  selector: 'app-home',
  templateUrl: 'home.page.html',
  styleUrls: ['home.page.scss'],
})

export class HomePage implements OnInit {
  public theTodo: any;
  private _productURL = 'https://jsonplaceholder.typicode.com/todos/1';

  constructor(
    private http: HttpClient
  ) { }


  ngOnInit() {
    this.http.get(this._productURL).subscribe(data => {
      this.theTodo = data ;
    });
  }
}

and the html

<ion-content padding>
{{theTodo?.title}}
</ion-content>

I would extend this code to create an interface to your Todo data structure, as well as some error checking if the request fails.

Also, I do not initialize theTodo variable, hence the use of the ? in the template.

1 Like
3

And in your app.module.ts you will need to add

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

and

@NgModule({
  declarations: [AppComponent],
  entryComponents: [],
  imports: [BrowserModule, HttpClientModule, IonicModule.forRoot(), AppRoutingModule],
  providers: [
    StatusBar,
    SplashScreen,
    { provide: RouteReuseStrategy, useClass: IonicRouteStrategy }
  ],
  bootstrap: [AppComponent]
})
1 Like
4

Hello @ChrisGriiffith,

I followed your instructions but I receive absolutely nothing (no status, no body…etc…) while when I use HTTP I receive the data but like @aligassan I can not read data.children.
Can it come from the server?

5

You need to add observe: 'response' to your GET API options