angular - Angular2 http.get chaining -


i have following chain of http.get in service:

constructor(private http:http) {}  getdetails(sysid:string){  var details; this.http.get('https://blahurl').map(res => res.json().filter(f => f.id == another.id)[0]).subscribe(     (data) => details = data,             // reach here if res.status >= 200 && <= 299     (err) => console.log(err),            // reach here if fails     function(){                           // on completion        console.log(this);        this.http.get(...) //<- fails

the "on completion" function gets triggered, this in console safesubscriber object, next http call this.httpfails.

what doing wrong?

use fat arrow syntax retain this value.

replace 

function(){  // on completion    console.log(this);    this.http.get(...) //<- fails

with

()=>{ // on completion    console.log(this);    this.http.get(...)

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