api_exception_handler

Description:

api exception handler

API Exception Handler is an advance error handler for http request. #
Getting started #
Add dependency #
dependencies:
api_exception_handler: ^0.0.3
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Super simple to use #
Future fetchData() async {
String url = 'https://api.covid19api.com/summary';

var response = await ApiHandler().get(url: url);
var data = json.decode(response);

return data;
}
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APIResponseHandler(
function: [fetchData()],
successScreen: (data) {
return Text(data!.data[0].toString());
},
errorScreen: (data) {
return SizedBox(
width: MediaQuery.of(context).size.width,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(data.toString()),
const SizedBox(height: 20,),
InkWell(
onTap: () {
/// simply call setState(() {}) to refresh the data.
setState(() {});
},
child: Container(
decoration: BoxDecoration(
color: Colors.blueAccent,
borderRadius: BorderRadius.circular(10),
),
padding: const EdgeInsets.symmetric(vertical: 8, horizontal: 20),
child: const Text('Retry', style: TextStyle(color: Colors.white),),
),
),
],
),
);
},
networkErrorScreen: const Text('Cannot establish connection with server!!'),
loadingScreen: const Center(
child: CupertinoActivityIndicator(radius: 20,),
),
)
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Or simply use FutureBuilder #
FutureBuilder(
future: fetchData(),
builder: (BuildContext context, snapshot) {
if(snapshot.hasData) {
/// <<--->> ///
} else if(snapshot.hasError) {
/// <<--->> ///
} else if(snapshot.connectionState == ConnectionState.waiting) {
/// <<--->> ///
} else if(snapshot.connectionState == ConnectionState.none) {
/// <<--->> ///
}
return const Center(child: CupertinoActivityIndicator(radius: 18,),);
},
)
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