can any one help me in this api and http request in flutter-CodePudding


    import 'dart:convert';
    import 'package:http/http.dart' as http;
    import 'package:newsapi_project/artical.dart';
    
    
    class News{ 
      List<ArticalModel> news =[];
      Future<void> getNews()async{
       String url="https://newsapi.org/v2/top-headlines?sources=techcrunch&apiKey=8efc3612216c44ccba7a8251dfbed587";
       var response=await http.get( url); //here its throwing the error//
       var jsonData= jsonDecode(response.body);
       if (jsonData["status"]=="ok"){
         jsonData["articles"].forEach(element){ //=> and even to in .forEach//
           if(element["urlToImagel"] != null && element["description"] != null ){
    
             ArticalModel articalmodel = ArticalModel(
               title:element["title"],
               author:element["author"],
               description:element["description"],
               url:element["url"],
              urlToImage:element["urlToImage"],
              content:element["content"]
             );
             news.add(articalmodel);
           }
         };
       }
      }
    
    }

The argument type 'String' can't be assigned to the parameter type 'Uri'.dart

   var response=await http.get( url); // this is where i am getting error

Function expressions can't be named Try removing the name, or moving the function expression to a function declaration statement. .forEach this is where i am getting error

Expected an identifier. .forEach this is where i am getting error

any way to solve this please help me to get rid of this

CodePudding user response：

Try below code hope its help to you. Change your API url declaration.

String url = 'https://newsapi.org/v2/top-headlines?sources=techcrunch&apiKey=8efc3612216c44ccba7a8251dfbed587';

var response=await http.get(Uri.parse(url));

Refer documenation here

CodePudding user response：

Try This! Code Snippet

 Future<void> getNews()async{
          String url="https://newsapi.org/v2/top-headlines?sources=techcrunch&apiKey=8efc3612216c44ccba7a8251dfbed587";
          var response=await http.get(Uri.parse(url)); //here its throwing the error//
          var jsonData= jsonDecode(response.body);
          if (**jsonData.statusCode==200**){
            jsonData["articles"].forEach(element){ //=> and even to in .forEach//
              if(element["urlToImagel"] != null && element["description"] != null ){
    
                ArticalModel articalmodel = ArticalModel(
                    title:element["title"],
                    author:element["author"],
                    description:element["description"],
                    url:element["url"],
                    urlToImage:element["urlToImage"],
                    content:element["content"]
                );
                news.add(articalmodel);
              }
            };
          }
        }

CodePudding user response：

get method definition

Future<Response> get(
 Uri url,
  {Map<String, String>? headers}
  )

and must parse url like this

 String url="https://newsapi.org/v2/top-headlines?sources=techcrunch&apiKey=8efc3612216c44ccba7a8251dfbed587";

var response=await http.get( Uri.parse(url));