diff --git a/integration_test/functions/src/index.ts b/integration_test/functions/src/index.ts
index 6865d7dd5..e51536295 100644
--- a/integration_test/functions/src/index.ts
+++ b/integration_test/functions/src/index.ts
@@ -1,41 +1,32 @@
 import { PubSub } from '@google-cloud/pubsub';
 import { Request, Response } from 'express';
+import fetch from 'node-fetch';
 import * as admin from 'firebase-admin';
 import * as functions from 'firebase-functions';
 import * as fs from 'fs';
-import * as https from 'https';
 
-export * from './pubsub-tests';
-export * from './database-tests';
-export * from './auth-tests';
-export * from './firestore-tests';
-export * from './https-tests';
-export * from './remoteConfig-tests';
-export * from './storage-tests';
-export * from './testLab-tests';
-const numTests = Object.keys(exports).length; // Assumption: every exported function is its own test.
+import * as v1 from './v1/index';
+const numTests = Object.keys(v1).filter((k) =>
+  ({}.hasOwnProperty.call(v1[k], '__endpoint'))
+).length;
+export { v1 };
 
-import * as utils from './test-utils';
-import * as testLab from './testLab-utils';
+import * as testLab from './v1/testLab-utils';
 
-import 'firebase-functions'; // temporary shim until process.env.FIREBASE_CONFIG available natively in GCF(BUG 63586213)
-import { config } from 'firebase-functions';
 const firebaseConfig = JSON.parse(process.env.FIREBASE_CONFIG);
-admin.initializeApp();
 const REGION = functions.config().functions.test_region;
+admin.initializeApp();
 
-// TODO(klimt): Get rid of this once the JS client SDK supports callable triggers.
-function callHttpsTrigger(name: string, data: any, baseUrl) {
-  return utils.makeRequest(
+function callHttpsTrigger(name: string, data: any) {
+  return fetch(
+    `https://${REGION}-${firebaseConfig.projectId}.cloudfunctions.net/${name}`,
     {
       method: 'POST',
-      host: REGION + '-' + firebaseConfig.projectId + '.' + baseUrl,
-      path: '/' + name,
       headers: {
         'Content-Type': 'application/json',
       },
-    },
-    JSON.stringify({ data })
+      body: JSON.stringify({ data }),
+    }
   );
 }
 
@@ -43,41 +34,85 @@ async function callScheduleTrigger(functionName: string, region: string) {
   const accessToken = await admin.credential
     .applicationDefault()
     .getAccessToken();
-  return new Promise<string>((resolve, reject) => {
-    const request = https.request(
-      {
-        method: 'POST',
-        host: 'cloudscheduler.googleapis.com',
-        path: `/v1/projects/${firebaseConfig.projectId}/locations/us-central1/jobs/firebase-schedule-${functionName}-${region}:run`,
-        headers: {
-          'Content-Type': 'application/json',
-          Authorization: `Bearer ${accessToken.access_token}`,
-        },
+  const response = await fetch(
+    `https://cloudscheduler.googleapis.com/v1/projects/${firebaseConfig.projectId}/locations/us-central1/jobs/firebase-schedule-${functionName}-${region}:run`,
+    {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        Authorization: `Bearer ${accessToken.access_token}`,
       },
-      (response) => {
-        if (response.statusCode! / 100 != 2) {
-          reject(
-            new Error('Failed request with status ' + response.statusCode!)
-          );
-          return;
-        }
-        let body = '';
-        response.on('data', (chunk) => {
-          body += chunk;
-        });
-        response.on('end', () => {
-          console.log(`Successfully scheduled function ${functionName}`);
-          resolve(body);
-        });
-      }
-    );
-    request.on('error', (err) => {
-      console.error('Failed to schedule cloud scheduler job with error', err);
-      reject(err);
-    });
-    request.write('{}');
-    request.end();
-  });
+    }
+  );
+  if (!response.ok) {
+    throw new Error(`Failed request with status ${response.status}!`);
+  }
+  const data = await response.text();
+  functions.logger.log(`Successfully scheduled function ${functionName}`, data);
+  return;
+}
+
+async function updateRemoteConfig(
+  testId: string,
+  accessToken: string
+): Promise<void> {
+  await fetch(
+    `https://firebaseremoteconfig.googleapis.com/v1/projects/${firebaseConfig.projectId}/remoteConfig`,
+    {
+      method: 'PUT',
+      headers: {
+        Authorization: `Bearer ${accessToken}`,
+        'Content-Type': 'application/json; UTF-8',
+        'Accept-Encoding': 'gzip',
+        'If-Match': '*',
+      },
+      body: JSON.stringify({ version: { description: testId } }),
+    }
+  );
+}
+
+function v1Tests(testId: string, accessToken: string) {
+  return [
+    // A database write to trigger the Firebase Realtime Database tests.
+    admin
+      .database()
+      .ref(`dbTests/${testId}/start`)
+      .set({ '.sv': 'timestamp' }),
+    // A Pub/Sub publish to trigger the Cloud Pub/Sub tests.
+    new PubSub()
+      .topic('pubsubTests')
+      .publish(Buffer.from(JSON.stringify({ testId }))),
+    // A user creation to trigger the Firebase Auth user creation tests.
+    admin
+      .auth()
+      .createUser({
+        email: `${testId}@fake.com`,
+        password: 'secret',
+        displayName: `${testId}`,
+      })
+      .then((userRecord) => {
+        // A user deletion to trigger the Firebase Auth user deletion tests.
+        admin.auth().deleteUser(userRecord.uid);
+      }),
+    // A firestore write to trigger the Cloud Firestore tests.
+    admin
+      .firestore()
+      .collection('tests')
+      .doc(testId)
+      .set({ test: testId }),
+    // Invoke a callable HTTPS trigger.
+    callHttpsTrigger('v1-callableTests', { foo: 'bar', testId }),
+    // A Remote Config update to trigger the Remote Config tests.
+    updateRemoteConfig(testId, accessToken),
+    // A storage upload to trigger the Storage tests
+    admin
+      .storage()
+      .bucket()
+      .upload('/tmp/' + testId + '.txt'),
+    testLab.startTestRun(firebaseConfig.projectId, testId),
+    // Invoke the schedule for our scheduled function to fire
+    callScheduleTrigger('v1-schedule', 'us-central1'),
+  ];
 }
 
 export const integrationTests: any = functions
@@ -86,12 +121,6 @@ export const integrationTests: any = functions
     timeoutSeconds: 540,
   })
   .https.onRequest(async (req: Request, resp: Response) => {
-    // We take the base url for our https call (cloudfunctions.net, txckloud.net, etc) from the request
-    // so that it changes with the environment that the tests are run in
-    const baseUrl = req.hostname
-      .split('.')
-      .slice(1)
-      .join('.');
     const testId = admin
       .database()
       .ref()
@@ -101,71 +130,15 @@ export const integrationTests: any = functions
       .ref(`testRuns/${testId}/timestamp`)
       .set(Date.now());
     const testIdRef = admin.database().ref(`testRuns/${testId}`);
-    console.log('testId is: ', testId);
+    functions.logger.info('testId is: ', testId);
     fs.writeFile('/tmp/' + testId + '.txt', 'test', () => {});
     try {
-      await Promise.all([
-        // A database write to trigger the Firebase Realtime Database tests.
-        admin
-          .database()
-          .ref(`dbTests/${testId}/start`)
-          .set({ '.sv': 'timestamp' }),
-        // A Pub/Sub publish to trigger the Cloud Pub/Sub tests.
-        new PubSub()
-          .topic('pubsubTests')
-          .publish(Buffer.from(JSON.stringify({ testId }))),
-        // A user creation to trigger the Firebase Auth user creation tests.
-        admin
-          .auth()
-          .createUser({
-            email: `${testId}@fake.com`,
-            password: 'secret',
-            displayName: `${testId}`,
-          })
-          .then((userRecord) => {
-            // A user deletion to trigger the Firebase Auth user deletion tests.
-            admin.auth().deleteUser(userRecord.uid);
-          }),
-        // A firestore write to trigger the Cloud Firestore tests.
-        admin
-          .firestore()
-          .collection('tests')
-          .doc(testId)
-          .set({ test: testId }),
-        // Invoke a callable HTTPS trigger.
-        callHttpsTrigger('callableTests', { foo: 'bar', testId }, baseUrl),
-        // A Remote Config update to trigger the Remote Config tests.
-        admin.credential
-          .applicationDefault()
-          .getAccessToken()
-          .then((accessToken) => {
-            const options = {
-              hostname: 'firebaseremoteconfig.googleapis.com',
-              path: `/v1/projects/${firebaseConfig.projectId}/remoteConfig`,
-              method: 'PUT',
-              headers: {
-                Authorization: 'Bearer ' + accessToken.access_token,
-                'Content-Type': 'application/json; UTF-8',
-                'Accept-Encoding': 'gzip',
-                'If-Match': '*',
-              },
-            };
-            const request = https.request(options, (resp) => {});
-            request.write(JSON.stringify({ version: { description: testId } }));
-            request.end();
-          }),
-        // A storage upload to trigger the Storage tests
-        admin
-          .storage()
-          .bucket()
-          .upload('/tmp/' + testId + '.txt'),
-        testLab.startTestRun(firebaseConfig.projectId, testId),
-        // Invoke the schedule for our scheduled function to fire
-        callScheduleTrigger('schedule', 'us-central1'),
-      ]);
-
+      const accessToken = await admin.credential
+        .applicationDefault()
+        .getAccessToken();
+      await Promise.all([...v1Tests(testId, accessToken.access_token)]);
       // On test completion, check that all tests pass and reply "PASS", or provide further details.
-      console.log('Waiting for all tests to report they pass...');
+      functions.logger.info('Waiting for all tests to report they pass...');
       await new Promise<void>((resolve, reject) => {
         setTimeout(() => reject(new Error('Timeout')), 5 * 60 * 1000);
         let testsExecuted = 0;
@@ -179,7 +152,7 @@ export const integrationTests: any = functions
             );
             return;
           }
-          console.log(
+          functions.logger.info(
             `${snapshot.key} passed (${testsExecuted} of ${numTests})`
           );
           if (testsExecuted < numTests) {
@@ -190,10 +163,10 @@ export const integrationTests: any = functions
           resolve();
         });
       });
-      console.log('All tests pass!');
+      functions.logger.info('All tests pass!');
       resp.status(200).send('PASS \n');
     } catch (err) {
-      console.log(`Some tests failed: ${err}`);
+      functions.logger.info(`Some tests failed: ${err}`, err);
       resp
         .status(500)
         .send(
diff --git a/integration_test/functions/src/test-utils.ts b/integration_test/functions/src/test-utils.ts
deleted file mode 100644
index eda799a67..000000000
--- a/integration_test/functions/src/test-utils.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-import * as https from 'https';
-
-/**
- * Makes an http request asynchronously and returns the response data.
- *
- * This function wraps the callback-based `http.request()` function with a
- * Promise. The returned Promise will be rejected in case the request fails with an
- * error, or the response code is not in the 200-299 range.
- *
- * @param options Request options for the request.
- * @param body Optional body to send as part of the request.
- * @returns Promise returning the response data as string.
- */
-export function makeRequest(
-  options: https.RequestOptions,
-  body?: string
-): Promise<string> {
-  return new Promise((resolve, reject) => {
-    const request = https.request(options, (response) => {
-      let body = '';
-      response.on('data', (chunk) => {
-        body += chunk;
-      });
-      response.on('end', () => {
-        if (response.statusCode < 200 || response.statusCode > 299) {
-          reject(body);
-          return;
-        }
-        resolve(body);
-      });
-    });
-    if (body) {
-      request.write(body);
-    }
-    request.on('error', reject);
-    request.end();
-  });
-}
diff --git a/integration_test/functions/src/testing.ts b/integration_test/functions/src/testing.ts
index 1cb9f7819..1054c7f01 100644
--- a/integration_test/functions/src/testing.ts
+++ b/integration_test/functions/src/testing.ts
@@ -1,7 +1,7 @@
 import * as firebase from 'firebase-admin';
-import { EventContext } from 'firebase-functions';
+import * as functions from 'firebase-functions';
 
-export type TestCase<T> = (data: T, context?: EventContext) => any;
+export type TestCase<T> = (data: T, context?: functions.EventContext) => any;
 export interface TestCaseMap<T> {
   [key: string]: TestCase<T>;
 }
@@ -20,7 +20,7 @@ export class TestSuite<T> {
     return this;
   }
 
-  run(testId: string, data: T, context?: EventContext): Promise<any> {
+  run(testId: string, data: T, context?: functions.EventContext): Promise<any> {
     const running: Array<Promise<any>> = [];
     for (const testName in this.tests) {
       if (!this.tests.hasOwnProperty(testName)) {
@@ -30,7 +30,7 @@ export class TestSuite<T> {
         .then(() => this.tests[testName](data, context))
         .then(
           (result) => {
-            console.log(
+            functions.logger.info(
               `${result ? 'Passed' : 'Failed with successful op'}: ${testName}`
             );
             return { name: testName, passed: !!result };
@@ -47,7 +47,7 @@ export class TestSuite<T> {
       results.forEach((val) => (sum = sum + val.passed));
       const summary = `passed ${sum} of ${running.length}`;
       const passed = sum === running.length;
-      console.log(summary);
+      functions.logger.info(summary);
       const result = { passed, summary, tests: results };
       return firebase
         .database()
diff --git a/integration_test/functions/src/auth-tests.ts b/integration_test/functions/src/v1/auth-tests.ts
similarity index 94%
rename from integration_test/functions/src/auth-tests.ts
rename to integration_test/functions/src/v1/auth-tests.ts
index c97c907bc..c82166baf 100644
--- a/integration_test/functions/src/auth-tests.ts
+++ b/integration_test/functions/src/v1/auth-tests.ts
@@ -1,6 +1,6 @@
 import * as admin from 'firebase-admin';
 import * as functions from 'firebase-functions';
-import { expectEq, TestSuite } from './testing';
+import { expectEq, TestSuite } from '../testing';
 import UserMetadata = admin.auth.UserRecord;
 
 const REGION = process.env.FIREBASE_FUNCTIONS_TEST_REGION || 'us-central1';
@@ -10,7 +10,7 @@ export const createUserTests: any = functions
   .auth.user()
   .onCreate((u, c) => {
     const testId: string = u.displayName;
-    console.log(`testId is ${testId}`);
+    functions.logger.info(`testId is ${testId}`);
 
     return new TestSuite<UserMetadata>('auth user onCreate')
       .it('should have a project as resource', (user, context) =>
@@ -50,7 +50,7 @@ export const deleteUserTests: any = functions
   .auth.user()
   .onDelete((u, c) => {
     const testId: string = u.displayName;
-    console.log(`testId is ${testId}`);
+    functions.logger.info(`testId is ${testId}`);
 
     return new TestSuite<UserMetadata>('auth user onDelete')
       .it('should have a project as resource', (user, context) =>
diff --git a/integration_test/functions/src/database-tests.ts b/integration_test/functions/src/v1/database-tests.ts
similarity index 85%
rename from integration_test/functions/src/database-tests.ts
rename to integration_test/functions/src/v1/database-tests.ts
index 568d26bf4..040c6786c 100644
--- a/integration_test/functions/src/database-tests.ts
+++ b/integration_test/functions/src/v1/database-tests.ts
@@ -1,6 +1,6 @@
 import * as admin from 'firebase-admin';
 import * as functions from 'firebase-functions';
-import { expectEq, expectMatches, TestSuite } from './testing';
+import { expectEq, expectMatches, TestSuite } from '../testing';
 import DataSnapshot = admin.database.DataSnapshot;
 
 const testIdFieldName = 'testId';
@@ -11,7 +11,7 @@ export const databaseTests: any = functions
   .database.ref('dbTests/{testId}/start')
   .onWrite((ch, ctx) => {
     if (ch.after.val() === null) {
-      console.log(
+      functions.logger.info(
         'Event for ' +
           ctx.params[testIdFieldName] +
           ' is null; presuming data cleanup, so skipping.'
@@ -40,7 +40,7 @@ export const databaseTests: any = functions
             return expectMatches(
               url,
               new RegExp(
-                `^https://${process.env.GCLOUD_PROJECT}.firebaseio.com/dbTests`
+                `^https://${process.env.GCLOUD_PROJECT}(-default-rtdb)*.firebaseio.com/dbTests`
               )
             );
           })
@@ -50,9 +50,11 @@ export const databaseTests: any = functions
       })
 
       .it('should have refs resources', (change, context) =>
-        expectEq(
+        expectMatches(
           context.resource.name,
-          `projects/_/instances/${process.env.GCLOUD_PROJECT}/refs/dbTests/${context.params.testId}/start`
+          new RegExp(
+            `^projects/_/instances/${process.env.GCLOUD_PROJECT}(-default-rtdb)*/refs/dbTests/${context.params.testId}/start$`
+          )
         )
       )
 
diff --git a/integration_test/functions/src/firestore-tests.ts b/integration_test/functions/src/v1/firestore-tests.ts
similarity index 95%
rename from integration_test/functions/src/firestore-tests.ts
rename to integration_test/functions/src/v1/firestore-tests.ts
index 97daadea5..9916e2d3c 100644
--- a/integration_test/functions/src/firestore-tests.ts
+++ b/integration_test/functions/src/v1/firestore-tests.ts
@@ -1,6 +1,6 @@
 import * as admin from 'firebase-admin';
 import * as functions from 'firebase-functions';
-import { expectDeepEq, expectEq, TestSuite } from './testing';
+import { expectDeepEq, expectEq, TestSuite } from '../testing';
 import DocumentSnapshot = admin.firestore.DocumentSnapshot;
 
 const testIdFieldName = 'documentId';
diff --git a/integration_test/functions/src/https-tests.ts b/integration_test/functions/src/v1/https-tests.ts
similarity index 88%
rename from integration_test/functions/src/https-tests.ts
rename to integration_test/functions/src/v1/https-tests.ts
index 18972bd47..103228d7d 100644
--- a/integration_test/functions/src/https-tests.ts
+++ b/integration_test/functions/src/v1/https-tests.ts
@@ -1,5 +1,5 @@
 import * as functions from 'firebase-functions';
-import { expectEq, TestSuite } from './testing';
+import { expectEq, TestSuite } from '../testing';
 
 const REGION = process.env.FIREBASE_FUNCTIONS_TEST_REGION || 'us-central1';
 
diff --git a/integration_test/functions/src/v1/index.ts b/integration_test/functions/src/v1/index.ts
new file mode 100644
index 000000000..6e6717b15
--- /dev/null
+++ b/integration_test/functions/src/v1/index.ts
@@ -0,0 +1,8 @@
+export * from './pubsub-tests';
+export * from './database-tests';
+export * from './auth-tests';
+export * from './firestore-tests';
+export * from './https-tests';
+export * from './remoteConfig-tests';
+export * from './storage-tests';
+export * from './testLab-tests';
diff --git a/integration_test/functions/src/pubsub-tests.ts b/integration_test/functions/src/v1/pubsub-tests.ts
similarity index 97%
rename from integration_test/functions/src/pubsub-tests.ts
rename to integration_test/functions/src/v1/pubsub-tests.ts
index a21c2011a..79f5889c6 100644
--- a/integration_test/functions/src/pubsub-tests.ts
+++ b/integration_test/functions/src/v1/pubsub-tests.ts
@@ -1,6 +1,6 @@
 import * as admin from 'firebase-admin';
 import * as functions from 'firebase-functions';
-import { evaluate, expectEq, success, TestSuite } from './testing';
+import { evaluate, expectEq, success, TestSuite } from '../testing';
 import PubsubMessage = functions.pubsub.Message;
 
 const REGION = process.env.FIREBASE_FUNCTIONS_TEST_REGION || 'us-central1';
diff --git a/integration_test/functions/src/remoteConfig-tests.ts b/integration_test/functions/src/v1/remoteConfig-tests.ts
similarity index 95%
rename from integration_test/functions/src/remoteConfig-tests.ts
rename to integration_test/functions/src/v1/remoteConfig-tests.ts
index 3f2cc8993..a9dbd10d7 100644
--- a/integration_test/functions/src/remoteConfig-tests.ts
+++ b/integration_test/functions/src/v1/remoteConfig-tests.ts
@@ -1,5 +1,5 @@
 import * as functions from 'firebase-functions';
-import { expectEq, TestSuite } from './testing';
+import { expectEq, TestSuite } from '../testing';
 import TemplateVersion = functions.remoteConfig.TemplateVersion;
 
 const REGION = process.env.FIREBASE_FUNCTIONS_TEST_REGION || 'us-central1';
diff --git a/integration_test/functions/src/storage-tests.ts b/integration_test/functions/src/v1/storage-tests.ts
similarity index 94%
rename from integration_test/functions/src/storage-tests.ts
rename to integration_test/functions/src/v1/storage-tests.ts
index df3032f78..4259c5a00 100644
--- a/integration_test/functions/src/storage-tests.ts
+++ b/integration_test/functions/src/v1/storage-tests.ts
@@ -1,5 +1,5 @@
 import * as functions from 'firebase-functions';
-import { expectEq, TestSuite } from './testing';
+import { expectEq, TestSuite } from '../testing';
 import ObjectMetadata = functions.storage.ObjectMetadata;
 
 const REGION = process.env.FIREBASE_FUNCTIONS_TEST_REGION || 'us-central1';
diff --git a/integration_test/functions/src/testLab-tests.ts b/integration_test/functions/src/v1/testLab-tests.ts
similarity index 86%
rename from integration_test/functions/src/testLab-tests.ts
rename to integration_test/functions/src/v1/testLab-tests.ts
index 8e064928a..805b988c8 100644
--- a/integration_test/functions/src/testLab-tests.ts
+++ b/integration_test/functions/src/v1/testLab-tests.ts
@@ -1,5 +1,5 @@
 import * as functions from 'firebase-functions';
-import { expectEq, TestSuite } from './testing';
+import { expectEq, TestSuite } from '../testing';
 import TestMatrix = functions.testLab.TestMatrix;
 const REGION = process.env.FIREBASE_FUNCTIONS_TEST_REGION || 'us-central1';
 
@@ -13,8 +13,6 @@ export const testLabTests: any = functions
     return new TestSuite<TestMatrix>('test matrix complete')
       .it('should have eventId', (snap, context) => context.eventId)
 
-      .it('should have timestamp', (snap, context) => context.timestamp)
-
       .it('should have right eventType', (_, context) =>
         expectEq(context.eventType, 'google.testing.testMatrix.complete')
       )
diff --git a/integration_test/functions/src/testLab-utils.ts b/integration_test/functions/src/v1/testLab-utils.ts
similarity index 72%
rename from integration_test/functions/src/testLab-utils.ts
rename to integration_test/functions/src/v1/testLab-utils.ts
index 3dbb7b763..8f0424d98 100644
--- a/integration_test/functions/src/testLab-utils.ts
+++ b/integration_test/functions/src/v1/testLab-utils.ts
@@ -1,7 +1,5 @@
+import fetch from 'node-fetch';
 import * as admin from 'firebase-admin';
-import * as http from 'http';
-import * as https from 'https';
-import * as utils from './test-utils';
 
 interface AndroidDevice {
   androidModelId: string;
@@ -30,10 +28,16 @@ export async function startTestRun(projectId: string, testId: string) {
 async function fetchDefaultDevice(
   accessToken: admin.GoogleOAuthAccessToken
 ): Promise<AndroidDevice> {
-  const response = await utils.makeRequest(
-    requestOptions(accessToken, 'GET', '/v1/testEnvironmentCatalog/ANDROID')
+  const response = await fetch(
+    `https://${TESTING_API_SERVICE_NAME}/v1/testEnvironmentCatalog/ANDROID`,
+    {
+      headers: {
+        Authorization: 'Bearer ' + accessToken.access_token,
+        'Content-Type': 'application/json',
+      },
+    }
   );
-  const data = JSON.parse(response);
+  const data = await response.json();
   const models = data?.androidDeviceCatalog?.models || [];
   const defaultModels = models.filter(
     (m) =>
@@ -58,17 +62,12 @@ async function fetchDefaultDevice(
   } as AndroidDevice;
 }
 
-function createTestMatrix(
+async function createTestMatrix(
   accessToken: admin.GoogleOAuthAccessToken,
   projectId: string,
   testId: string,
   device: AndroidDevice
-): Promise<string> {
-  const options = requestOptions(
-    accessToken,
-    'POST',
-    '/v1/projects/' + projectId + '/testMatrices'
-  );
+): Promise<void> {
   const body = {
     projectId,
     testSpecification: {
@@ -96,21 +95,16 @@ function createTestMatrix(
       },
     },
   };
-  return utils.makeRequest(options, JSON.stringify(body));
-}
-
-function requestOptions(
-  accessToken: admin.GoogleOAuthAccessToken,
-  method: string,
-  path: string
-): https.RequestOptions {
-  return {
-    method,
-    hostname: TESTING_API_SERVICE_NAME,
-    path,
-    headers: {
-      Authorization: 'Bearer ' + accessToken.access_token,
-      'Content-Type': 'application/json',
-    },
-  };
+  await fetch(
+    `https://${TESTING_API_SERVICE_NAME}/v1/projects/${projectId}/testMatrices`,
+    {
+      method: 'POST',
+      headers: {
+        Authorization: 'Bearer ' + accessToken.access_token,
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify(body),
+    }
+  );
+  return;
 }
diff --git a/integration_test/package.json.template b/integration_test/package.json.template
index a5259aeb6..07585cbe2 100644
--- a/integration_test/package.json.template
+++ b/integration_test/package.json.template
@@ -8,10 +8,11 @@
     "@google-cloud/pubsub": "^2.10.0",
     "firebase-admin": "__FIREBASE_ADMIN__",
     "firebase-functions": "__SDK_TARBALL__",
-    "lodash": "~4.17.2"
+    "node-fetch": "^2.6.7"
   },
   "main": "lib/index.js",
   "devDependencies": {
+    "@types/node-fetch": "^2.6.1",
     "typescript": "~4.2.2"
   },
   "engines": {
diff --git a/integration_test/run_tests.sh b/integration_test/run_tests.sh
index 498a9b0a0..b78150cc2 100755
--- a/integration_test/run_tests.sh
+++ b/integration_test/run_tests.sh
@@ -85,9 +85,9 @@ function delete_all_functions {
   # Try to delete, if there are errors it is because the project is already empty,
   # in that case do nothing.
   if [[ "${TOKEN}" == "" ]]; then
-    firebase functions:delete callableTests createUserTests databaseTests deleteUserTests firestoreTests integrationTests pubsubTests remoteConfigTests testLabTests --force --project=$PROJECT_ID || : &
+    firebase functions:delete integrationTests v1 --force --project=$PROJECT_ID || : &
   else
-    firebase functions:delete callableTests createUserTests databaseTests deleteUserTests firestoreTests integrationTests pubsubTests remoteConfigTests testLabTests --force --project=$PROJECT_ID --token=$TOKEN || : &
+    firebase functions:delete integrationTests v1 --force --project=$PROJECT_ID --token=$TOKEN || : &
   fi
   wait
   announce "Project emptied."
@@ -139,13 +139,8 @@ build_sdk
 delete_all_functions
 set_region
 
-for version in 10 12 14 16; do
-  if [[ "$version" -eq 10 ]]; then
-    admin_sdk="^9.12.0"
-  else
-    admin_sdk="^10.0.0"
-  fi
-  create_package_json $TIMESTAMP $version $admin_sdk
+for version in 12 14 16; do
+  create_package_json $TIMESTAMP $version "^10.0.0"
   install_deps
   announce "Re-deploying the same functions to Node $version runtime ..."
   deploy