Adding X-Firebase-Client header to FCM API calls (#488)

Author: hiranya911

src/messaging/messaging-api-request.ts

@@ -27,7 +27,7 @@ const FIREBASE_MESSAGING_TIMEOUT = 10000;
 const FIREBASE_MESSAGING_BATCH_URL = 'https://fcm.googleapis.com/batch';
 const FIREBASE_MESSAGING_HTTP_METHOD: HttpMethod = 'POST';
 const FIREBASE_MESSAGING_HEADERS = {
-  'Sdk-Version': 'Node/Admin/<XXX_SDK_VERSION_XXX>',
+  'X-Firebase-Client': 'fire-admin-node/<XXX_SDK_VERSION_XXX>',
   'access_token_auth': 'true',
 };
 

test/unit/messaging/messaging.spec.ts

@@ -314,7 +314,7 @@ describe('Messaging', () => {
   const mockAccessToken: string = utils.generateRandomAccessToken();
   const expectedHeaders = {
     'Authorization': 'Bearer ' + mockAccessToken,
-    'Sdk-Version': 'Node/Admin/<XXX_SDK_VERSION_XXX>',
+    'X-Firebase-Client': 'fire-admin-node/<XXX_SDK_VERSION_XXX>',
     'access_token_auth': 'true',
   };
   const emptyResponse = utils.responseFrom({});