如何在Angular 4中从API接收响应

Question

I am working in an Angular 4 application,Trying to get data from API,In this I don't know whether I am receiving the response or not ,But I don't receive any error.

This is what I have tried...

ngOnInit() {
    this.http.get(`url=${this.product_Name}`)
     .subscribe(data => { this.path = data[0].Image_PATH_NAME;}, error => console.error(error));
     } 
 } 

This is the JSON response I got from API

[{"Image_PATH_NAME":"assets/Images/Product_Details_Page/Show101.png"}]

While debugging the above lines I can't see any kind of response .I am new to Angular4 please guide me to get API response.

Answer 1

This is the answer for this question.

.subscribe(data => {
      console.log(data[0]['Image_PATH_NAME']);
    });

console view.

Answer 2

It looks like you are using the old HttpModule in which case, you have to convert your response to JSON before use :

ngOnInit() {
    this.http.get(`url=${this.product_Name}`)
     .map(res => res.json())
     .subscribe(data => { this.path = data[0].Image_PATH_NAME;}, error => console.error(error));
     } 
 } 

Answer 3

if you pass in

this.path = data[0].Image_PATH_NAME;

it means your http call finished correctly. When you use subscribe, the first parameter is a function called when the call finished correctly, the second parameter is a function called when something went wrong.

You can also check the network section in you devtools and look for you http call to see what you got

Hope that helps