ionic framework - fetching data from json file in assets folder -


trying fetch data json file in ionic 2 application, using below piece of code within constructor fetching json assets folder, getting error "supplied parameters not match signature of call target." missing, please suggest. 

this.http.get('assets/sample.json')  .map((res) => res.json().records)  .subscribe(data => {  this.data = data;  console.log("json data"+ data);  }, (rej) => {console.error("could not load local data",rej)});

so solved it, path of json file assets folder used below me answer displayed data on device.

 this.http.get('/android_asset/www/assets/data/subjects.json').map(res => res.json()).subscribe(      response => {          this.posts = response;  		console.log(this.posts);      },      err => {          console.log("oops!");      });

while if use /assets/data/subjects.json, display data on browser, though can not use single path able data on both browser on device, because both have different file system need different way access data on devices.


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