feat: call request-vrf-direct with estimated fee price

Bisonai · Jul 13, 2023 · 660ce99 · 660ce99
1 parent c163c0b
commit 660ce99
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Showing 2 changed files with 15 additions and 4 deletions.
diff --git a/scripts/get-estimated-service-fee.ts b/scripts/get-estimated-service-fee.ts
@@ -4,17 +4,25 @@ import dotenv from 'dotenv'
 
 dotenv.config()
 
-async function main() {
+export async function estimateServiceFee() {
   const { vrfCoordinator: coordinatorAddress } = await hre.getNamedAccounts()
   const coordinator = await ethers.getContractAt(CoordinatorBase__factory.abi, coordinatorAddress)
 
   const reqCount = 1
   const numSubmission = 1
   const callbackGasLimit = 500_000
-  const estimatedGas = await coordinator.estimateFee(reqCount, numSubmission, callbackGasLimit)
-  const amountKlay = ethers.utils.formatUnits(estimatedGas, 'ether')
+  const estimatedServiceFee = await coordinator.estimateFee(
+    reqCount,
+    numSubmission,
+    callbackGasLimit
+  )
+  const amountKlay = ethers.utils.formatUnits(estimatedServiceFee, 'ether')
 
   console.log(`Estimated Price for 1 Request is: ${amountKlay} Klay`)
+  return amountKlay
+}
+async function main() {
+  await estimateServiceFee()
 }
 
 main().catch((error) => {

diff --git a/scripts/request-vrf-direct.ts b/scripts/request-vrf-direct.ts
@@ -1,5 +1,6 @@
 import { ethers, getNamedAccounts } from 'hardhat'
 import { getKeyHash } from './utils'
+import { estimateServiceFee } from './get-estimated-service-fee'
 
 async function main() {
   const vrfConsumer = await ethers.getContract('VRFConsumer')
@@ -9,9 +10,11 @@ async function main() {
   const numWords = 1
 
   const { deployer } = await getNamedAccounts()
+  const estimatedServiceFee = await estimateServiceFee()
+
   const txReceipt = await (
     await vrfConsumer.requestRandomWordsDirect(keyHash, callbackGasLimit, numWords, deployer, {
-      value: ethers.utils.parseEther('2.5')
+      value: ethers.utils.parseEther(estimatedServiceFee.toString())
     })
   ).wait()