@reservoir0x/relay-kit-ui/_esm/src/hooks/useBitcoinBalance.js

Relay is the Fastest and Cheapest Way to Bridge and Transact Across Chains.

import { ProviderOptionsContext } from '../providers/RelayKitProvider.js';
import { useContext } from 'react';
import { useQuery } from '@tanstack/react-query';
export default (address, queryOptions) => {
    const providerOptions = useContext(ProviderOptionsContext);
    const queryKey = ['useBitcoinBalance', address];
    const response = useQuery({
        queryKey: ['useBitcoinBalance', address],
        queryFn: () => {
            const url = `https://mempool.space/api/address/${address}`;
            return fetch(url)
                .then((response) => response.json())
                .then((response) => {
                let balance = BigInt(0);
                let inflightTxo = BigInt(0);
                if (response) {
                    const balanceResponse = response;
                    const fundedTxo = balanceResponse.chain_stats.funded_txo_sum;
                    const spentTxo = balanceResponse.chain_stats.spent_txo_sum;
                    inflightTxo = BigInt(balanceResponse.mempool_stats.spent_txo_sum);
                    balance = BigInt(fundedTxo) - BigInt(spentTxo) - inflightTxo;
                }
                return {
                    balance,
                    pendingBalance: inflightTxo
                };
            });
        },
        enabled: address !== undefined,
        ...queryOptions
    });
    return {
        ...response,
        balance: response.data?.balance,
        queryKey
    };
};
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