Create http_example.dart

dart/http_example.dart

@@ -0,0 +1,26 @@
+import 'dart:convert' as convert;
+
+import 'package:http/http.dart' as http;
+
+void main(List<String> arguments) async {
+  // This example uses the Google Books API to search
+  // for books about HTTP. For details, see
+  // https://developers.google.com/books/docs/overview
+  final url = Uri.https(
+    'www.googleapis.com',
+    '/books/v1/volumes',
+    {'q': '{http}'},
+  );
+
+  // Await the HTTP GET response, then decode the
+  // JSON data it contains.
+  final response = await http.get(url);
+
+  if (response.statusCode == 200) {
+    final jsonResponse = convert.jsonDecode(response.body);
+    final itemCount = jsonResponse['totalItems'];
+    print('Number of books about HTTP: $itemCount.');
+  } else {
+    print('Request failed with status: ${response.statusCode}.');
+  }
+}