added requests

loc_chain_app/lib/util/requests.dart

@@ -0,0 +1,32 @@
+import 'dart:convert';
+import 'dart:html';
+import 'dart:io';
+import 'package:http/http.dart' as http;
+
+import 'package:loc_chain_app/util/transaction_manager.dart';
+
+String baseUrl = 'http://loc.glmdev.tech:8000/';
+
+Future<http.Response> postEncounter(EncounterTransaction encounter) async {
+  var payload = jsonEncode(encounter);
+  var url = Uri.parse('http://loc.glmdev.tech:8000/api/v1/encounter');
+  return await http.post(
+    url,
+    headers: <String, String>{
+      'Content-Type': 'application/json',
+    },
+    body: payload,
+  );
+}
+
+Future<http.Response> postExposure(ExposureTransaction exposure) async {
+  var payload = jsonEncode(exposure);
+  var url = Uri.parse('http://loc.glmdev.tech:8000/api/v1/exposure');
+  return await http.post(
+    url,
+    headers: <String, String>{
+      'Content-Type': 'application/json',
+    },
+    body: payload,
+  );
+}