useTokenBalance

The useTokenBalance hook fetches token balances for a connected wallet with optional automatic refresh intervals.

Import

import { useTokenBalance } from '@siphoyawe/mina-sdk/react';

Signature

function useTokenBalance(params: UseTokenBalanceParams): UseTokenBalanceReturn

Parameters

UseTokenBalanceParams

Parameter	Type	Required	Default	Description
`chainId`	`number`	Yes	-	Chain ID to fetch balance from
`tokenAddress`	`string`	Yes	-	Token contract address (use `'native'` for native tokens)
`walletAddress`	`string`	Yes	-	Wallet address to check balance for
`refetchInterval`	`number`	No	-	Auto-refresh interval in milliseconds
`enabled`	`boolean`	No	`true`	Enable/disable fetching

Returns

UseTokenBalanceReturn

Property	Type	Description
`balance`	`string \| null`	Raw balance in smallest unit (wei)
`formattedBalance`	`string \| null`	Human-readable formatted balance
`decimals`	`number \| null`	Token decimals (e.g., 18 for ETH, 6 for USDC)
`symbol`	`string \| null`	Token symbol (e.g., ‘ETH’, ‘USDC’)
`balanceUsd`	`number \| null`	USD value of balance (if available)
`isLoading`	`boolean`	`true` while fetching
`error`	`Error \| null`	Any error that occurred
`refetch`	`() => Promise<void>`	Manually trigger a balance refresh

Features

Automatic refresh - Set refetchInterval to keep balances up to date
Smart formatting - Balances are formatted with appropriate precision
Native token support - Use 'native' for chain native tokens
Stale-while-revalidate - Previous balance shown during refresh
Controlled fetching - Use enabled to pause/resume

Basic Usage

'use client';

import { useTokenBalance } from '@siphoyawe/mina-sdk/react';

function BalanceDisplay({ walletAddress }: { walletAddress: string }) {
  const {
    formattedBalance,
    symbol,
    isLoading,
    error,
  } = useTokenBalance({
    chainId: 1,
    tokenAddress: '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48', // USDC
    walletAddress,
  });

  if (isLoading) return <span>Loading...</span>;
  if (error) return <span>Error loading balance</span>;

  return (
    <span>
      {formattedBalance ?? '0'} {symbol ?? 'USDC'}
    </span>
  );
}

Auto-Refresh Example

Keep balances updated automatically:

'use client';

import { useTokenBalance } from '@siphoyawe/mina-sdk/react';

function LiveBalance({ walletAddress }: { walletAddress: string }) {
  const {
    formattedBalance,
    symbol,
    balanceUsd,
    isLoading,
    refetch,
  } = useTokenBalance({
    chainId: 42161,
    tokenAddress: '0xaf88d065e77c8cC2239327C5EDb3A432268e5831', // USDC on Arbitrum
    walletAddress,
    refetchInterval: 10000, // Refresh every 10 seconds
  });

  return (
    <div className="balance-card">
      <div className="balance-amount">
        {formattedBalance ?? '0'} {symbol}
        {isLoading && <span className="refresh-indicator" />}
      </div>

      {balanceUsd !== null && (
        <div className="balance-usd">
          ${balanceUsd.toFixed(2)} USD
        </div>
      )}

      <button onClick={refetch} disabled={isLoading}>
        Refresh
      </button>
    </div>
  );
}

Native Token Balance

Fetch the native token balance (ETH, MATIC, etc.):

'use client';

import { useTokenBalance } from '@siphoyawe/mina-sdk/react';

function NativeBalance({
  chainId,
  walletAddress
}: {
  chainId: number;
  walletAddress: string;
}) {
  const { formattedBalance, symbol } = useTokenBalance({
    chainId,
    tokenAddress: 'native', // Special value for native tokens
    walletAddress,
    refetchInterval: 15000,
  });

  return (
    <div>
      {formattedBalance ?? '0'} {symbol ?? 'ETH'}
    </div>
  );
}

You can also use the zero address (0x0000000000000000000000000000000000000000) instead of 'native'.

Multiple Token Balances

Display balances for multiple tokens:

'use client';

import { useTokenBalance } from '@siphoyawe/mina-sdk/react';

interface TokenConfig {
  chainId: number;
  address: string;
  label: string;
}

const TOKENS: TokenConfig[] = [
  { chainId: 1, address: '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48', label: 'USDC (Ethereum)' },
  { chainId: 42161, address: '0xaf88d065e77c8cC2239327C5EDb3A432268e5831', label: 'USDC (Arbitrum)' },
  { chainId: 8453, address: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913', label: 'USDC (Base)' },
];

function TokenBalanceItem({
  token,
  walletAddress
}: {
  token: TokenConfig;
  walletAddress: string;
}) {
  const { formattedBalance, symbol, isLoading } = useTokenBalance({
    chainId: token.chainId,
    tokenAddress: token.address,
    walletAddress,
    refetchInterval: 30000,
  });

  return (
    <div className="token-row">
      <span>{token.label}</span>
      <span>
        {isLoading ? '...' : `${formattedBalance ?? '0'} ${symbol}`}
      </span>
    </div>
  );
}

function MultiTokenBalance({ walletAddress }: { walletAddress: string }) {
  return (
    <div className="token-list">
      {TOKENS.map((token) => (
        <TokenBalanceItem
          key={`${token.chainId}-${token.address}`}
          token={token}
          walletAddress={walletAddress}
        />
      ))}
    </div>
  );
}

Conditional Fetching

Control when balances are fetched:

'use client';

import { useTokenBalance } from '@siphoyawe/mina-sdk/react';

function ConditionalBalance({
  walletAddress,
  isVisible
}: {
  walletAddress: string | undefined;
  isVisible: boolean;
}) {
  const { formattedBalance, symbol } = useTokenBalance({
    chainId: 42161,
    tokenAddress: '0x...',
    walletAddress: walletAddress ?? '',
    // Only fetch when wallet is connected AND component is visible
    enabled: !!walletAddress && isVisible,
  });

  if (!walletAddress) {
    return <span>Connect wallet</span>;
  }

  return (
    <span>{formattedBalance ?? '0'} {symbol}</span>
  );
}

Integration with wagmi

Combine with wagmi for a complete wallet experience:

'use client';

import { useAccount } from 'wagmi';
import { useTokenBalance } from '@siphoyawe/mina-sdk/react';

function WalletBalance() {
  const { address, isConnected, chain } = useAccount();

  const {
    formattedBalance,
    symbol,
    balanceUsd,
    isLoading
  } = useTokenBalance({
    chainId: chain?.id ?? 1,
    tokenAddress: '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48',
    walletAddress: address ?? '',
    refetchInterval: 10000,
    enabled: isConnected && !!address,
  });

  if (!isConnected) {
    return <button>Connect Wallet</button>;
  }

  return (
    <div className="wallet-balance">
      <span className="balance">
        {isLoading ? 'Loading...' : `${formattedBalance} ${symbol}`}
      </span>
      {balanceUsd !== null && (
        <span className="usd">${balanceUsd.toFixed(2)}</span>
      )}
    </div>
  );
}

Balance Formatting

The hook automatically formats balances for display:

Balance Value	Formatted Output
0	`0`
< 0.0001	`<0.0001`
< 1	`0.1234` (4 decimals)
< 1000	`123.45` (2 decimals)
< 1,000,000	`123.45K`
>= 1,000,000	`1.23M`

Error Handling

'use client';

import { useTokenBalance } from '@siphoyawe/mina-sdk/react';

function RobustBalanceDisplay({ walletAddress }: { walletAddress: string }) {
  const {
    formattedBalance,
    symbol,
    isLoading,
    error,
    refetch,
  } = useTokenBalance({
    chainId: 42161,
    tokenAddress: '0x...',
    walletAddress,
    refetchInterval: 15000,
  });

  if (error) {
    return (
      <div className="error-state">
        <span>Failed to load balance</span>
        <button onClick={refetch}>Retry</button>
      </div>
    );
  }

  return (
    <div className={isLoading ? 'opacity-70' : ''}>
      {formattedBalance ?? '--'} {symbol ?? ''}
    </div>
  );
}

Best Practices

Performance and UX Tips:

Choose refresh intervals wisely - Too frequent refreshes waste resources. 10-30 seconds is usually sufficient.
Use enabled for optimization - Disable fetching when the component is not visible or wallet is not connected.
Handle loading gracefully - Show previous balance while refreshing (stale-while-revalidate pattern).
Clear data on wallet change - The hook automatically clears data when walletAddress changes.
Manual refetch clears interval - When you call refetch(), the auto-refresh timer resets to prevent overlapping requests.

Setup

Hooks

useTokenBalance

useTokenBalance

Import

Signature

Parameters

UseTokenBalanceParams

Returns

UseTokenBalanceReturn

Features

Basic Usage

Auto-Refresh Example

Native Token Balance

Multiple Token Balances

Conditional Fetching

Integration with wagmi

Balance Formatting

Error Handling

Best Practices

Next Steps

useQuote

useTransactionStatus

Setup

Hooks

​useTokenBalance

​Import

​Signature

​Parameters

​UseTokenBalanceParams

​Returns

​UseTokenBalanceReturn

​Features

​Basic Usage

​Auto-Refresh Example

​Native Token Balance

​Multiple Token Balances

​Conditional Fetching

​Integration with wagmi

​Balance Formatting

​Error Handling

​Best Practices

​Next Steps

useQuote

useTransactionStatus

useTokenBalance

Import

Signature

Parameters

UseTokenBalanceParams

Returns

UseTokenBalanceReturn

Features

Basic Usage

Auto-Refresh Example

Native Token Balance

Multiple Token Balances

Conditional Fetching

Integration with wagmi

Balance Formatting

Error Handling

Best Practices

Next Steps