Ionic 2 Yelp API - ionic-framework

Question

I'm trying to connect an Ionic 2 app to Yelp's API. Right now I'm just using a blank Ionic 2 application generated from the CLI and running on my localhost.
My code:
app.module.ts
import { BrowserModule } from '#angular/platform-browser';
import { ErrorHandler, NgModule } from '#angular/core';
import { HttpModule } from '#angular/http';
import { IonicApp, IonicErrorHandler, IonicModule } from 'ionic-angular';
import { SplashScreen } from '#ionic-native/splash-screen';
import { StatusBar } from '#ionic-native/status-bar';
import { MyApp } from './app.component';
import { HomePage } from '../pages/home/home';
#NgModule({
declarations: [
MyApp,
HomePage
],
imports: [
BrowserModule,
HttpModule,
IonicModule.forRoot(MyApp)
],
bootstrap: [IonicApp],
entryComponents: [
MyApp,
HomePage
],
providers: [
StatusBar,
SplashScreen,
{provide: ErrorHandler, useClass: IonicErrorHandler}
]
})
export class AppModule {}
home.ts
import { Component } from '#angular/core';
import { NavController } from 'ionic-angular';
import { Http } from '#angular/http';
import { Headers, RequestOptions } from '#angular/http';
import 'rxjs/add/operator/map';
#Component({
selector: 'page-home',
templateUrl: 'home.html'
})
export class HomePage {
restaurants:any;
constructor(public navCtrl: NavController, public http: Http) {
var headers = new Headers();
headers.append('Authorization', 'Bearer someString');
var options = new RequestOptions({headers: headers});
this.http.get('https://api.yelp.com/v3/businesses/search?term=deli20&latitude=39.59754&longitude=-104.872934', options).map(res => res.json()).subscribe(data => {
this.restaurants = data.data.children;
console.log(this.restaurants);
});
}
}
home.html
<ion-header>
<ion-navbar>
<ion-title>
Ionic Blank
</ion-title>
</ion-navbar>
</ion-header>
<ion-content padding>
The world is your oyster.
<p>
If you get lost, the docs will be your guide.
</p>
<!--Just using Ionic 2's default home page, just wanna output my JSON to the console for now.-->
</ion-content>
The page renders correctly, but the error I get in the console: "Failed to load resource: Preflight response is not successful"
The response looks like this:
{"error": {"code": "TOKEN_MISSING", "description": "An access token must be supplied in order to use this endpoint."}}
Any thoughts on what I might be missing?

Answer 1

Add this chrome plugin to your browser, turn it on and reload the page. It should work fine