From 2ccddb0ceab043fcd4f57023604262c0b038fc57 Mon Sep 17 00:00:00 2001
From: TaprootFreak <142087526+TaprootFreak@users.noreply.github.com>
Date: Tue, 13 Jan 2026 17:21:08 +0100
Subject: [PATCH] fix: round amount to asset decimals in bridgeToDeuro (#2923)

EURC has only 6 decimal places, but the amount from liquidity
balance can have more (e.g. 12). This caused ethers.parseUnits()
to throw NUMERIC_FAULT underflow when the fractional component
exceeded the token's decimals.

Use EvmUtil.toWeiAmount() which correctly rounds to the specified
decimals before calling parseUnits.
---
 src/integration/blockchain/deuro/deuro-client.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/integration/blockchain/deuro/deuro-client.ts b/src/integration/blockchain/deuro/deuro-client.ts
index 451cc5fa61..7b1da7b67b 100644
--- a/src/integration/blockchain/deuro/deuro-client.ts
+++ b/src/integration/blockchain/deuro/deuro-client.ts
@@ -9,6 +9,7 @@ import {
 } from '@deuro/eurocoin';
 import { Contract, ethers } from 'ethers';
 import { gql, request } from 'graphql-request';
+import { EvmUtil } from '../shared/evm/evm.util';
 import { Config } from 'src/config/config';
 import { Asset } from 'src/shared/models/asset/asset.entity';
 import { EvmClient } from '../shared/evm/evm-client';
@@ -209,7 +210,7 @@ export class DEuroClient {
     if (!asset.decimals) throw new Error(`Asset ${asset.name} has no decimals`);
     if (!asset.chainId) throw new Error(`Asset ${asset.name} has no chainId`);
 
-    const weiAmount = ethers.utils.parseUnits(amount.toString(), asset.decimals);
+    const weiAmount = EvmUtil.toWeiAmount(amount, asset.decimals);
 
     const remainingCapacity = await this.getBridgeRemainingCapacity(asset.name);
     if (remainingCapacity.lt(weiAmount)) {