working facebook feed

src/src/pages/news/news.html

@@ -17,5 +17,9 @@
 
 
 <ion-content padding>
-
+<ion-list>
+  <ion-item *ngFor="let message of fb_feed">
+    {{message.message}}
+  </ion-item>
+</ion-list>
 </ion-content>

src/src/pages/news/news.ts

 import { Component } from '@angular/core';
 import { IonicPage, NavController, NavParams } from 'ionic-angular';
+import { FacebookProvider } from '../../providers/facebook-provider';
 
 /**
  * Generated class for the News page.
@@ -11,12 +12,29 @@ import { IonicPage, NavController, NavParams } from 'ionic-angular';
 @Component({
   selector: 'page-news',
   templateUrl: 'news.html',
+  providers:[FacebookProvider],
 })
 export class News {
 
-  constructor(public navCtrl: NavController, public navParams: NavParams) {
+  fb_feed: any;
+  constructor(public navCtrl: NavController, private facebookProvider: FacebookProvider, public navParams: NavParams) {
+  this.getdata();
   }
+  getdata(){
+  this.facebookProvider.getFeed().subscribe(
+    result => {
+      this.fb_feed=result.data;
+      console.log("Success : "+this.fb_feed);
+    },
+    err =>{
+      console.error("Error : "+err);
+    } ,
+    () => {
+      console.log('getData completed');
+    }
+  );
 
+  }
   ionViewDidLoad() {
     console.log('ionViewDidLoad News');
   }

src/src/providers/facebook-provider.ts

+import { Injectable } from '@angular/core';
+import { Http } from '@angular/http';
+import 'rxjs/add/operator/map';
+import 'rxjs/add/operator/mergeMap';
+
+@Injectable()
+export class FacebookProvider {
+  fb_token: string;
+  constructor(public http: Http) {
+    console.log('Hello FacebookProvider Provider');
+  }
+
+  getToken(){
+      return this.http.get('https://graph.facebook.com/oauth/access_token?client_id=383921551657881&client_secret=4343cb687dc79a236dcf19ae032e81ec&grant_type=client_credentials').map(res => res.json());
+  }
+
+  getFeed(){
+  return this.http.get('https://graph.facebook.com/oauth/access_token?client_id=383921551657881&client_secret=4343cb687dc79a236dcf19ae032e81ec&grant_type=client_credentials').map(res => res.json())
+  .flatMap((token) => {
+      console.log('token'+token.access_token);
+      return this.http.get('https://graph.facebook.com/nightofscience/feed?access_token='+token.access_token).map(res => res.json());
+    })
+
+
+  }
+
+}

src/src/providers/schedule-provider.ts

-import { Injectable } from '@angular/core';
-import { Http } from '@angular/http';
-import 'rxjs/add/operator/map';
-
-@Injectable()
-export class ScheduleProvider {
-
-  constructor(public http: Http) {
-    console.log('Hello ScheduleProvider Provider');
-  }
-
-  getJsonData(){
-  return this.http.get('schedule.json').map(res => res.json());
-  }
-}