Setting installationId in _Session object during sign-up (#136)

* Setting installationId in _Session object during sign-up

* Setting installationId in _Session object during sign-up - Added null check

Author: mregandla

lib/src/base/parse_constants.dart

@@ -44,6 +44,7 @@ const String keyHeaderContentType = 'Content-Type';
 const String keyHeaderContentTypeJson = 'application/json';
 const String keyHeaderMasterKey = 'X-Parse-Master-Key';
 const String keyHeaderClientKey = 'X-Parse-Client-Key';
+const String keyHeaderInstallationId = 'X-Parse-Installation-Id';
 
 // URL params
 const String keyParamSessionToken = 'sessionToken';

lib/src/objects/parse_user.dart

@@ -126,11 +126,15 @@ class ParseUser extends ParseObject implements ParseCloneable {
       bodyData[keyVarPassword] = password;
       bodyData[keyVarUsername] = username;
       final Uri url = getSanitisedUri(_client, '$path');
+      final Map<String, String> headers = <String, String>{
+        keyHeaderRevocableSession: '1',
+      };
+      final String installationId = await _getInstallationId();
+      if (installationId != null) {
+        headers[keyHeaderInstallationId] = installationId;
+      }
       final Response response = await _client.post(url,
-          headers: <String, String>{
-            keyHeaderRevocableSession: '1',
-          },
-          body: json.encode(bodyData));
+          headers: headers, body: json.encode(bodyData));
 
       return _handleResponse(
           this, response, ParseApiRQ.signUp, _debug, className);
@@ -174,11 +178,15 @@ class ParseUser extends ParseObject implements ParseCloneable {
     try {
       final Uri url = getSanitisedUri(_client, '$keyEndPointUsers');
       final Uuid uuid = Uuid();
-
+      final Map<String, String> headers = <String, String>{
+        keyHeaderRevocableSession: '1',
+      };
+      final String installationId = await _getInstallationId();
+      if (installationId != null) {
+        headers[keyHeaderInstallationId] = installationId;
+      }
       final Response response = await _client.post(url,
-          headers: <String, String>{
-            keyHeaderRevocableSession: '1',
-          },
+          headers: headers,
           body: jsonEncode(<String, dynamic>{
             'authData': <String, dynamic>{
               'anonymous': <String, dynamic>{'id': uuid.v4()}
@@ -203,10 +211,15 @@ class ParseUser extends ParseObject implements ParseCloneable {
   Future<ParseResponse> _loginWith(String provider, Object authData) async {
     try {
       final Uri url = getSanitisedUri(_client, '$keyEndPointUsers');
+      final Map<String, String> headers = <String, String>{
+        keyHeaderRevocableSession: '1',
+      };
+      final String installationId = await _getInstallationId();
+      if (installationId != null) {
+        headers[keyHeaderInstallationId] = installationId;
+      }
       final Response response = await _client.post(url,
-          headers: <String, String>{
-            keyHeaderRevocableSession: '1',
-          },
+          headers: headers,
           body: jsonEncode(<String, dynamic>{
             'authData': <String, dynamic>{provider: authData}
           }));
@@ -218,6 +231,12 @@ class ParseUser extends ParseObject implements ParseCloneable {
     }
   }
 
+  static Future<String> _getInstallationId() async {
+    final ParseInstallation parseInstallation =
+        await ParseInstallation.currentInstallation();
+    return parseInstallation?.installationId;
+  }
+
   /// Sends a request to delete the sessions token from the
   /// server. Will also delete the local user data unless
   /// deleteLocalUserData is false.