Exploring Angular 2/4: Unpacking the Process of Accessing API Data Using Tokens

Hello there,

I am trying to retrieve API data with a token using Angular 2/4. Below is the code I have written:

import { Component, ViewEncapsulation } from '@angular/core';
import { Http, Response } from '@angular/http';
import 'rxjs/add/operator/map';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css'],
  encapsulation: ViewEncapsulation.None,
})

export class AppComponent {

private apiUrl = 'http://apiurlhere.xom/data';
data: any = {};

constructor(private http: Http){
    console.log('hi');
    this.getVoicepickData();
    this.getData();
}

//set API header
let headers = new Headers({
    'Token': "XXXXXXXXXXTOKEN HEREXXXXXXXXXX",
    'Content-Type': 'application/json'
});

getData(){
    return this.http.get(this.apiUrl, {headers: headers})
        .map((res: Response) => res.json())
}

getVoicepickData() {
    this.getData().subscribe(data => {
        console.log(data);
        this.data = data
    })
}
}

I encountered an error stating: Module parse failed: 'return' outside of function. Can someone guide me on how to successfully retrieve the API data with a token? Thank you for your assistance.

Answer №1

In the realm of function scope, it is not possible to assign a variable outside of it. However, you have the option to declare it as a public property or define it within the function getData itself.

I trust this information proves to be beneficial.

@Component({
  selector: 'app-home',
  templateUrl: './home.component.html',
  styleUrls: ['./home.component.css'],
  encapsulation: ViewEncapsulation.None,
})

export class HomeComponent {

private apiUrl = 'http://apiurlhere.xom/data';
data: any = {};
headers: Headers;

constructor(private http: Http){
    console.log('hello');
    this.getVoicepickData();
    this.getData();

    this.headers = new Headers({
        'Token': "XXXXXXXXXXTOKEN HEREXXXXXXXXXX",
        'Content-Type': 'application/json'
    });
}

    // IT IS NOT POSSIBLE TO ASSIGN ANYTHING HERE

    getData(){
        return this.http.get(this.apiUrl, {headers: this.headers})
            .map((res: Response) => res.json());
    }

    getVoicepickData() {
        this.getData().subscribe(data => {
            console.log(data);
            this.data = data
        });
    }
}

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