javascript - How to return data coming from response instead of subscription json in Angular 24 - Stack Overflow

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My Service :

fetchData(url,request)
  {
    return this.http.post(this.apiUrl+url,request).subscribe(
        (response) => {return response.json()}
    );
  }

My Component :

ngOnInit()
    {
        this.response = this.dataService.fetchData('friends/grow_network',{});
        console.log('s ',this.response);
    }

if I console response.json() in service it shows proper data which is ing from api but if I console in ponent it shows like this :

Subscriber {closed: false, _parent: null, _parents: null, _subscriptions: Array(1), syncErrorValue: null…}

how to get data in ponent which is ing from api not Subscriber data ?

My Service :

fetchData(url,request)
  {
    return this.http.post(this.apiUrl+url,request).subscribe(
        (response) => {return response.json()}
    );
  }

My Component :

ngOnInit()
    {
        this.response = this.dataService.fetchData('friends/grow_network',{});
        console.log('s ',this.response);
    }

if I console response.json() in service it shows proper data which is ing from api but if I console in ponent it shows like this :

Subscriber {closed: false, _parent: null, _parents: null, _subscriptions: Array(1), syncErrorValue: null…}

how to get data in ponent which is ing from api not Subscriber data ?

• javascript
• php
• angular

Share Improve this question Follow edited Jul 27, 2017 at 6:51 georgeawg 49k1313 gold badges7777 silver badges9898 bronze badges asked Jul 27, 2017 at 6:42 Mohit BumbMohit Bumb 2,49355 gold badges3333 silver badges5454 bronze badges

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2 Answers 2

Sorted by: Reset to default 2

When doing it your way, you write in the variable "reponse" the observable object and not the result. The value of the result is not there yet when calling the method, because it will be asynchronous.

To get what you want you have to do the following:

fetchData(url,request)
  {
    return this.http.post(this.apiUrl+url,request).map(
        (response) => {return response.json()}
    );
  }

ngOnInit()
    {
        this.response = this.dataService.fetchData('friends/grow_network',{})
                         .subscribe(result => {
                           this.response = result;
                           console.log('s ',this.response);
                         });

    }

You can using Observables in angular . and please checkout this below discussion

What is the difference between Promises and Observables?

---

Now try this below code instead of your code in ponent

 this.response = this.dataService.fetchData ('friends/grow_network'{})
                 .subscribe(res=> { console.log(res);
                 }), error => alert(error);

and you service code should be

fetchData(url,request)
  {
    return this.http.post(this.apiUrl+url,request).map(
        (response) => {return response.json()}
    );
  }

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