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fix: call decimals() on generating test permits #249

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Jun 13, 2024
Merged

fix: call decimals() on generating test permits #249

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14 changes: 10 additions & 4 deletions scripts/typescript/generate-erc20-permit-url.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -13,11 +13,17 @@ function createProviderAndWallet() {
return { provider, myWallet };
}

function createPermitTransferFromData(amount: string) {
async function createPermitTransferFromData(amount: string) {
// get payment token decimals
const { provider } = createProviderAndWallet();
const erc20Abi = ["function decimals() public view returns (uint8)"];
const tokenContract = new ethers.Contract(process.env.PAYMENT_TOKEN_ADDRESS, erc20Abi, provider);
const tokenDecimals = await tokenContract.decimals();

return {
permitted: {
token: process.env.PAYMENT_TOKEN_ADDRESS || "",
amount: ethers.utils.parseUnits(amount || "", 18),
amount: ethers.utils.parseUnits(amount || "", tokenDecimals),
},
spender: process.env.BENEFICIARY_ADDRESS,
nonce: BigNumber.from(`0x${randomBytes(32).toString("hex")}`),
Expand Down Expand Up @@ -58,10 +64,10 @@ function createTxData(myWallet: ethers.Wallet, permitTransferFromData: PermitTra
export async function generateERC20Permit() {
const { myWallet } = createProviderAndWallet();

const permitTransferFromData = createPermitTransferFromData(process.env.AMOUNT_IN_ETH);
const permitTransferFromData = await createPermitTransferFromData(process.env.AMOUNT_IN_ETH);
const signature = await signTypedData(myWallet, permitTransferFromData);

const permitTransferFromData2 = createPermitTransferFromData("9");
const permitTransferFromData2 = await createPermitTransferFromData("9");
const sig = await signTypedData(myWallet, permitTransferFromData);

const txData = [createTxData(myWallet, permitTransferFromData, signature), createTxData(myWallet, permitTransferFromData2, sig)];
Expand Down
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