diff --git a/functions/src/stripe.ts b/functions/src/stripe.ts
index 67309aa8..450bbe35 100644
--- a/functions/src/stripe.ts
+++ b/functions/src/stripe.ts
@@ -1,4 +1,4 @@
-import * as functions from 'firebase-functions'
+import { onRequest } from 'firebase-functions/v2/https'
 import * as admin from 'firebase-admin'
 import Stripe from 'stripe'
 
@@ -42,9 +42,9 @@ const manticDollarStripePrice = isProd()
       10000: 'price_1K8bEiGdoFKoCJW7Us4UkRHE',
     }
 
-export const createCheckoutSession = functions
-  .runWith({ minInstances: 1, secrets: ['STRIPE_APIKEY'] })
-  .https.onRequest(async (req, res) => {
+export const createcheckoutsession = onRequest(
+  { minInstances: 1, secrets: ['STRIPE_APIKEY'] },
+  async (req, res) => {
     const userId = req.query.userId?.toString()
 
     const manticDollarQuantity = req.query.manticDollarQuantity?.toString()
@@ -86,14 +86,15 @@ export const createCheckoutSession = functions
     })
 
     res.redirect(303, session.url || '')
-  })
+  }
+)
 
-export const stripeWebhook = functions
-  .runWith({
+export const stripewebhook = onRequest(
+  {
     minInstances: 1,
     secrets: ['MAILGUN_KEY', 'STRIPE_APIKEY', 'STRIPE_WEBHOOKSECRET'],
-  })
-  .https.onRequest(async (req, res) => {
+  },
+  async (req, res) => {
     const stripe = initStripe()
     let event
 
@@ -115,7 +116,8 @@ export const stripeWebhook = functions
     }
 
     res.status(200).send('success')
-  })
+  }
+)
 
 const issueMoneys = async (session: StripeSession) => {
   const { id: sessionId } = session
diff --git a/web/lib/firebase/api-call.ts b/web/lib/firebase/api-call.ts
index ef0cad1e..d65a44f3 100644
--- a/web/lib/firebase/api-call.ts
+++ b/web/lib/firebase/api-call.ts
@@ -53,6 +53,7 @@ export function getFunctionUrl(name: string) {
 export function createAnswer(params: any) {
   return call(getFunctionUrl('createanswer'), 'POST', params)
 }
+
 export function changeUserInfo(params: any) {
   return call(getFunctionUrl('changeuserinfo'), 'POST', params)
 }
diff --git a/web/lib/service/stripe.ts b/web/lib/service/stripe.ts
index 395f7093..bedd68aa 100644
--- a/web/lib/service/stripe.ts
+++ b/web/lib/service/stripe.ts
@@ -1,12 +1,11 @@
-import { PROJECT_ID } from 'common/envs/constants'
+import { getFunctionUrl } from 'web/lib/firebase/api-call'
 
 export const checkoutURL = (
   userId: string,
   manticDollarQuantity: number,
   referer = ''
 ) => {
-  const endpoint = `https://us-central1-${PROJECT_ID}.cloudfunctions.net/createCheckoutSession`
-
+  const endpoint = getFunctionUrl('createcheckoutsession')
   return `${endpoint}?userId=${userId}&manticDollarQuantity=${manticDollarQuantity}&referer=${encodeURIComponent(
     referer
   )}`