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refactor: erc20 token standard optimisation #7604

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Nov 24, 2025
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refactor: erc20 token standard optimisation #7604

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27 changes: 25 additions & 2 deletions modules/statics/src/coins.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -29,10 +29,10 @@ import {
erc20Token,
} from './account';
import { ofcToken } from './ofc';
import { BaseCoin } from './base';
import { BaseCoin, CoinFeature } from './base';
import { AmsTokenConfig, TrimmedAmsTokenConfig } from './tokenConfig';
import { CoinMap } from './map';
import { Networks } from './networks';
import { Networks, NetworkType } from './networks';
import { networkFeatureMapForTokens } from './networkFeatureMapForTokens';
import { ofcErc20Coins, tOfcErc20Coins } from './coins/ofcErc20Coins';
import { ofcCoins } from './coins/ofcCoins';
Expand All @@ -47,6 +47,23 @@ export const coins = CoinMap.fromCoins([
...botOfcTokens,
]);

// Build a map of ERC20-supporting chain family names to their mainnet coin names
// Maps family -> coin name (e.g., 'ip' -> 'ip')
const erc20ChainToNameMap: Record<string, string> = {};

// TODO: remove ip coin here and remove other evm coins from switch block, once changes are tested (Ticket: https://bitgoinc.atlassian.net/browse/WIN-7835)
const enabledEvmCoins = ['ip'];
allCoinsAndTokens.forEach((coin) => {
if (
coin.features.includes(CoinFeature.SUPPORTS_ERC20) &&
coin.network.type === NetworkType.MAINNET &&
!coin.isToken &&
enabledEvmCoins.includes(coin.family)
) {
erc20ChainToNameMap[coin.family] = coin.name;
}
});

export function createToken(token: AmsTokenConfig): Readonly<BaseCoin> | undefined {
const initializerMap: Record<string, unknown> = {
algo: algoToken,
Expand Down Expand Up @@ -83,6 +100,11 @@ export function createToken(token: AmsTokenConfig): Readonly<BaseCoin> | undefin
ton: jettonToken,
};

// dynamically add erc20 token initializers for eth like chains to the initializer map
Object.keys(erc20ChainToNameMap).forEach((key) => {
initializerMap[key] = erc20Token;
});

//return the BaseCoin from default coin map if present
if (isCoinPresentInCoinMap({ ...token })) {
if (coins.has(token.name)) {
Expand Down Expand Up @@ -130,6 +152,7 @@ export function createToken(token: AmsTokenConfig): Readonly<BaseCoin> | undefin
case 'opeth':
case 'polygon':
case 'trx':
case erc20ChainToNameMap[family]:
return initializer(
...commonArgs.slice(0, 4), // id, name, fullName, decimalPlaces
token.contractAddress || token.tokenAddress, // contractAddress
Expand Down