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Verify recipient's token address for solana token payments

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This commit is contained in:
Shreerang Kale 2025-07-21 13:32:31 +05:30
parent 4e34ea442a
commit 52de3df7da
4 changed files with 13 additions and 9 deletions
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5
.env.example
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@ -9,10 +9,8 @@ NEXT_PUBLIC_SOLANA_TOKEN_MINT_ADDRESS=71Jvq4Epe2FCJ7JFSF7jLXdNk1Wy4Bhqd9iL6bEFEL
NEXT_PUBLIC_SOLANA_TOKEN_RECIPIENT_ADDRESS=FFDx3SdAEeXrp6BTmStB4BDHpctGsaasZq4FFcowRobY NEXT_PUBLIC_SOLANA_TOKEN_RECIPIENT_ADDRESS=FFDx3SdAEeXrp6BTmStB4BDHpctGsaasZq4FFcowRobY
NEXT_PUBLIC_SOLANA_TOKEN_SYMBOL=GOR NEXT_PUBLIC_SOLANA_TOKEN_SYMBOL=GOR
NEXT_PUBLIC_MIN_SOLANA_PAYMENT_AMOUNT=400000000 # Approx. 5 USD NEXT_PUBLIC_MIN_SOLANA_PAYMENT_AMOUNT=400000000 # Approx. 5 USD
NEXT_PUBLIC_MIN
# UI Configuration (optional) # UI Configuration
NEXT_PUBLIC_DOMAIN_SUFFIX=apps.vaasl.io
NEXT_PUBLIC_EXAMPLE_URL=https://git.vdb.to/cerc-io/test-progressive-web-app NEXT_PUBLIC_EXAMPLE_URL=https://git.vdb.to/cerc-io/test-progressive-web-app
# Server-side environment variables # Server-side environment variables
@ -28,3 +26,4 @@ REGISTRY_GAS_PRICE=0.001
# Application Configuration # Application Configuration
DEPLOYER_LRN= DEPLOYER_LRN=
NEXT_PUBLIC_DOMAIN_SUFFIX=

1
src/services/solana.ts
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@ -7,6 +7,7 @@ import {
createAssociatedTokenAccountInstruction, createAssociatedTokenAccountInstruction,
ASSOCIATED_TOKEN_PROGRAM_ID ASSOCIATED_TOKEN_PROGRAM_ID
} from '@solana/spl-token'; } from '@solana/spl-token';
import { SolanaPaymentResult, SolanaWalletType, SolanaWalletState } from '../types'; import { SolanaPaymentResult, SolanaWalletType, SolanaWalletState } from '../types';
assert(process.env.NEXT_PUBLIC_SOLANA_TOKEN_MINT_ADDRESS, 'SOLANA_TOKEN_MINT_ADDRESS is required'); assert(process.env.NEXT_PUBLIC_SOLANA_TOKEN_MINT_ADDRESS, 'SOLANA_TOKEN_MINT_ADDRESS is required');

2
src/types/index.ts
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@ -69,4 +69,4 @@ export interface LaconicTransferResult {
success: boolean; success: boolean;
transactionHash?: string; transactionHash?: string;
error?: string; error?: string;
} }

14
src/utils/solanaVerify.ts
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@ -1,8 +1,8 @@
import assert from 'assert'; import assert from 'assert';
import BN from 'bn.js'; import BN from 'bn.js';
import { Connection } from '@solana/web3.js'; import { Connection, PublicKey } from '@solana/web3.js';
import { TOKEN_PROGRAM_ID } from '@solana/spl-token'; import { getAssociatedTokenAddressSync, TOKEN_PROGRAM_ID } from '@solana/spl-token';
// Simplified transaction info extraction following reference implementation // Simplified transaction info extraction following reference implementation
const extractTxInfo = async (connection: Connection, transactionSignature: string): Promise<{ authority: string; amount: string }> => { const extractTxInfo = async (connection: Connection, transactionSignature: string): Promise<{ authority: string; amount: string }> => {
@ -87,6 +87,11 @@ export const verifyUnusedSolanaPayment = async (
}; };
} }
const expectedTokenAccount = getAssociatedTokenAddressSync(
new PublicKey(process.env.NEXT_PUBLIC_SOLANA_TOKEN_MINT_ADDRESS!),
new PublicKey(process.env.NEXT_PUBLIC_SOLANA_TOKEN_RECIPIENT_ADDRESS!)
);
// Verify recipient address by checking the transaction instructions // Verify recipient address by checking the transaction instructions
let foundValidTransfer = false; let foundValidTransfer = false;
@ -94,9 +99,8 @@ export const verifyUnusedSolanaPayment = async (
if ('parsed' in instruction && instruction.programId.equals(TOKEN_PROGRAM_ID)) { if ('parsed' in instruction && instruction.programId.equals(TOKEN_PROGRAM_ID)) {
const parsed = instruction.parsed; const parsed = instruction.parsed;
if (parsed.type === 'transferChecked' || parsed.type === 'transfer') { if (parsed.type === 'transferChecked' || parsed.type === 'transfer') {
// TODO: Check recipient address // Verify amount and recipient's associated token address
// Verify amount if (parsed.info.amount === amount && parsed.info.destination === expectedTokenAccount.toBase58() ) {
if (parsed.info.amount === amount ) {
foundValidTransfer = true; foundValidTransfer = true;
break; break;
} }