data.ts

import {Injectable} from '@angular/core';
import{Http,Response,Jsonp} from'@angular/http';


import {NavController, Alert} from 'ionic-angular';
import {HomePage} from '../../pages/home/home';
import {LoginPage} from '../../pages/login/login';
import * as firebase from 'firebase';
 

@Injectable()
 export class DataService {

private db:any;
private api_url="https://jobs.github.com/positions.json?description=python&location=new+york";


constructor(){

  this.db=firebase.database();



}
getdetails(){

  firebase.database().ref('/userProfile').child(firebase.auth().currentUser.uid).on('value',(data)=>{console.log(data);}
  ,(err)=>{console.log(`err is ${err}`);

}
  )

}



 


}


 

home.ts

import {Component} from '@angular/core';
import {NavController} from 'ionic-angular';
import {AuthData} from '../../providers/authdata/authdata';
import {DataService} from '../../providers/data/data';
import {LoginPage} from '../login/login';




@Component({
  templateUrl: 'build/pages/home/home.html',
  providers:[DataService],
  
  
  
})
export class HomePage  {


private loginpage:any;
public data:any;
private errormessage:any;


handler=()=>{

 this.dataService.getdetails();
 




}





  constructor(private nav: NavController,private dataService:DataService) {



  }


}