first step from http request

lib/main.dart

@@ -1,6 +1,7 @@
+import 'package:doctor_app_flutter/providers/patients_provider.dart';
 import 'package:flutter/material.dart';
 import 'package:hexcolor/hexcolor.dart';
-
+import 'package:provider/provider.dart';
 import './routes.dart';
 
 void main() => runApp(MyApp());
@@ -9,15 +10,20 @@ class MyApp extends StatelessWidget {
   // This widget is the root of your application.
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Flutter Demo',
-      theme: ThemeData(
-          primarySwatch: Colors.blue,
-          primaryColor: Hexcolor('#B8382C'),
-          buttonColor: Hexcolor('#B8382C'),
-          fontFamily: 'WorkSans'),
-      initialRoute: INIT_ROUTE,
-      routes: routes,
+    return MultiProvider(
+      providers: [
+        ChangeNotifierProvider.value(value: PatientsProvider()),
+      ],
+      child: MaterialApp(
+        title: 'Flutter Demo',
+        theme: ThemeData(
+            primarySwatch: Colors.blue,
+            primaryColor: Hexcolor('#B8382C'),
+            buttonColor: Hexcolor('#B8382C'),
+            fontFamily: 'WorkSans'),
+        initialRoute: INIT_ROUTE,
+        routes: routes,
+      ),
     );
   }
 }

lib/providers/patients_provider.dart

@@ -0,0 +1,50 @@
+import 'dart:io';
+
+import 'package:doctor_app_flutter/models/patient_model.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:http/http.dart' as http;
+import 'dart:convert';
+
+class PatientsProvider with ChangeNotifier {
+  Future<void> getPatientList(PatientModel patient, patientType) async {
+    Map<String, String> requestHeaders = {
+      'Content-type': 'application/json',
+      'Accept': 'application/json',
+    };
+    const url =
+        'https://hmgwebservices.com/Services/DoctorApplication.svc/REST/GetMyInPatient';
+    try {
+      final response = await http.post(url,
+          headers: requestHeaders,
+          body: json.encode({
+            "ProjectID": 12,
+            "ClinicID": 17,
+            "DoctorID": 98129,
+            "FirstName": "0",
+            "MiddleName": "0",
+            "LastName": "0",
+            "PatientMobileNumber": "0",
+            "PatientIdentificationID": "0",
+            "PatientID": 0,
+            "From": "0",
+            "To": "0",
+            "LanguageID": 2,
+            "stamp": "2020-03-02T13:56:39.170Z",
+            "IPAdress": "11.11.11.11",
+            "VersionID": 1.2,
+            "Channel": 9,
+            "TokenID": "2Fi7HoIHB0eDyekVa6tCJg==",
+            "SessionID": "5G0yXn0Jnq",
+            "IsLoginForDoctorApp": true,
+            "PatientOutSA": false
+          }));
+      // var response = await http.post(url, body: {'name': 'doodle', 'color': 'blue'});
+      print('Response status: ${response.statusCode}');
+      print('Response body: ${response.body}');
+      notifyListeners();
+    } catch (error) {
+      print(error.toString());
+      print('error');
+    }
+  }
+}

lib/screens/patients/patient_search_screen.dart

@@ -59,7 +59,7 @@ class _PatientSearchState extends State<PatientSearch> {
     print(_patientSearchFormValues.From);
     print(_patientSearchFormValues.To);
 
-    Navigator.of(context).pushNamed(PATIENTS);
+    Navigator.of(context).pushNamed(PATIENTS, arguments: {'patientSearchForm':_patientSearchFormValues,'selectedType':_selectedType});
   }
 
   @override

lib/screens/patients/patients_list_screen.dart

@@ -1,7 +1,23 @@
+import 'package:doctor_app_flutter/models/patient_model.dart';
+import 'package:doctor_app_flutter/providers/patients_provider.dart';
 import 'package:flutter/material.dart';
-class PatientsList extends StatelessWidget {
+import 'package:provider/provider.dart';
+class PatientsList extends StatefulWidget {
+  @override
+  _PatientsListState createState() => _PatientsListState();
+}
+
+class _PatientsListState extends State<PatientsList> {
   @override
   Widget build(BuildContext context) {
+    final routeArgs = ModalRoute.of(context).settings.arguments as Map;
+    PatientModel patient = routeArgs['patientSearchForm'];
+    String patientType =  routeArgs['selectedType'];
+    print(patientType);
+    var list ;
+
+    PatientsProvider patientsProv = Provider.of<PatientsProvider>(context);
+    patientsProv.getPatientList(patient, patientType);
     return Scaffold(
       appBar: AppBar(title: Text('PatientsList'),),
     );

pubspec.lock

@@ -236,7 +236,7 @@ packages:
     source: hosted
     version: "0.14.0+3"
   http:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: http
       url: "https://pub.dartlang.org"
@@ -382,6 +382,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
+  provider:
+    dependency: "direct main"
+    description:
+      name: provider
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.2.0"
   pub_semver:
     dependency: transitive
     description:

pubspec.yaml

@@ -22,6 +22,9 @@ dependencies:
   hexcolor: ^1.0.1
   flutter_device_type: ^0.2.0
   intl: ^0.16.1
+  http: ^0.12.0+4
+  provider: ^3.0.0
+
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^0.1.2