chore: Add X-Goog-Api-Client metric header to Auth and FCM requests (#2738)

* [chore] Add `X-Goog-Api-Client` metric header to Auth and FCM requests

* trigger integration tests

Author: jonathanedey

src/auth/auth-api-request.ts

@@ -45,8 +45,9 @@ import {
 import { ProjectConfig, ProjectConfigServerResponse, UpdateProjectConfigRequest } from './project-config';
 
 /** Firebase Auth request header. */
-const FIREBASE_AUTH_HEADER = {
+const FIREBASE_AUTH_HEADERS = {
   'X-Client-Version': `Node/Admin/${utils.getSdkVersion()}`,
+  'X-Goog-Api-Client': `gl-node/${process.versions.node} fire-admin/${utils.getSdkVersion()}`
 };
 /** Firebase Auth request timeout duration in milliseconds. */
 const FIREBASE_AUTH_TIMEOUT = 25000;
@@ -1919,7 +1920,7 @@ export abstract class AbstractAuthRequestHandler {
         const req: HttpRequestConfig = {
           method: apiSettings.getHttpMethod(),
           url,
-          headers: FIREBASE_AUTH_HEADER,
+          headers: FIREBASE_AUTH_HEADERS,
           data: requestData,
           timeout: FIREBASE_AUTH_TIMEOUT,
         };

src/messaging/messaging-api-request-internal.ts

@@ -33,9 +33,11 @@ const FIREBASE_MESSAGING_BATCH_URL = 'https://fcm.googleapis.com/batch';
 const FIREBASE_MESSAGING_HTTP_METHOD: HttpMethod = 'POST';
 const FIREBASE_MESSAGING_HEADERS = {
   'X-Firebase-Client': `fire-admin-node/${getSdkVersion()}`,
+  'X-Goog-Api-Client': `gl-node/${process.versions.node} fire-admin/${getSdkVersion()}`
 };
 const LEGACY_FIREBASE_MESSAGING_HEADERS = {
   'X-Firebase-Client': `fire-admin-node/${getSdkVersion()}`,
+  'X-Goog-Api-Client': `gl-node/${process.versions.node} fire-admin/${getSdkVersion()}`,
   'access_token_auth': 'true',
 };
 

test/unit/auth/auth-api-request.spec.ts

@@ -863,10 +863,12 @@ AUTH_REQUEST_HANDLER_TESTS.forEach((handler) => {
     const mockAccessToken: string = utils.generateRandomAccessToken();
     const expectedHeaders: {[key: string]: string} = {
       'X-Client-Version': `Node/Admin/${getSdkVersion()}`,
+      'X-Goog-Api-Client': `gl-node/${process.versions.node} fire-admin/${getSdkVersion()}`,
       'Authorization': 'Bearer ' + mockAccessToken,
     };
     const expectedHeadersEmulator: {[key: string]: string} = {
       'X-Client-Version': `Node/Admin/${getSdkVersion()}`,
+      'X-Goog-Api-Client': `gl-node/${process.versions.node} fire-admin/${getSdkVersion()}`,
       'Authorization': 'Bearer owner',
     };
     const callParams = (path: string, method: any, data: any): HttpRequestConfig => {

test/unit/messaging/messaging.spec.ts

@@ -357,6 +357,7 @@ describe('Messaging', () => {
   const expectedHeaders = {
     'Authorization': 'Bearer ' + mockAccessToken,
     'X-Firebase-Client': `fire-admin-node/${getSdkVersion()}`,
+    'X-Goog-Api-Client': `gl-node/${process.versions.node} fire-admin/${getSdkVersion()}`,
     'access_token_auth': 'true',
   };
   const emptyResponse = utils.responseFrom({});