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Add rate limiting with cooldown for tip submissions #171

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Merged
Mosas2000 merged 1 commit into from
Feb 26, 2026
Merged

Add rate limiting with cooldown for tip submissions #171

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35 changes: 32 additions & 3 deletions frontend/src/components/SendTip.jsx
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
import { useState, useMemo } from 'react';
import { useState, useMemo, useRef, useCallback, useEffect } from 'react';
import { openContractCall } from '@stacks/connect';
import {
stringUtf8CV,
Expand All @@ -19,6 +19,7 @@ const FEE_BASIS_POINTS = 50;
const BASIS_POINTS_DIVISOR = 10000;
const MIN_TIP_STX = 0.001;
const MAX_TIP_STX = 10000;
const COOLDOWN_SECONDS = 10;

export default function SendTip({ addToast }) {
const { notifyTipSent } = useTipContext();
Expand All @@ -30,6 +31,28 @@ export default function SendTip({ addToast }) {
const [pendingTx, setPendingTx] = useState(null);
const [recipientError, setRecipientError] = useState('');
const [amountError, setAmountError] = useState('');
const [cooldown, setCooldown] = useState(0);
const cooldownRef = useRef(null);

useEffect(() => {
return () => {
if (cooldownRef.current) clearInterval(cooldownRef.current);
};
}, []);

const startCooldown = useCallback(() => {
setCooldown(COOLDOWN_SECONDS);
cooldownRef.current = setInterval(() => {
setCooldown(prev => {
if (prev <= 1) {
clearInterval(cooldownRef.current);
cooldownRef.current = null;
return 0;
}
return prev - 1;
});
}, 1000);
}, []);

const senderAddress = useMemo(() => {
try {
Expand Down Expand Up @@ -80,6 +103,11 @@ export default function SendTip({ addToast }) {
};

const validateAndConfirm = () => {
if (cooldown > 0) {
addToast(`Please wait ${cooldown}s before sending another tip`, 'warning');
return;
}

if (!recipient || !amount) {
addToast('Please fill in all required fields', 'warning');
return;
Expand Down Expand Up @@ -160,6 +188,7 @@ export default function SendTip({ addToast }) {
setMessage('');
notifyTipSent();
refetchBalance();
startCooldown();
addToast('Tip sent successfully! Transaction: ' + data.txId, 'success');
},
onCancel: () => {
Expand Down Expand Up @@ -293,7 +322,7 @@ export default function SendTip({ addToast }) {

<button
onClick={validateAndConfirm}
disabled={loading}
disabled={loading || cooldown > 0}
className="w-full bg-gray-900 hover:bg-black text-white font-bold py-3 px-4 rounded-lg shadow-md hover:shadow-lg transform active:scale-95 transition-all disabled:bg-gray-400 disabled:shadow-none"
>
{loading ? (
Expand All @@ -304,7 +333,7 @@ export default function SendTip({ addToast }) {
</svg>
Processing...
</span>
) : 'Send Tip'}
) : cooldown > 0 ? `Wait ${cooldown}s` : 'Send Tip'}
</button>
</div>

Expand Down
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