import { NextRequest, NextResponse } from 'next/server';
import { getTransaction, getBtcPrice, getBlockHeight } from '@/lib/bitcoin';
import { isValidTxid, ERRORS } from '@/lib/validation';
export async function GET(
request: NextRequest,
{ params }: { params: Promise<{ txid: string }> }
) {
const { txid } = await params;
if (!isValidTxid(txid)) {
return NextResponse.json(ERRORS.INVALID_TXID, { status: 400 });
}
try {
const [tx, price, currentHeight] = await Promise.all([
getTransaction(txid),
getBtcPrice(),
getBlockHeight(),
]);
const confirmations = tx.status.confirmed && tx.status.block_height
? currentHeight - tx.status.block_height + 1
: 0;
const feeRate = tx.weight ? (tx.fee / tx.weight * 4) : null;
const feeBtc = tx.fee / 100_000_000;
const feeUsd = feeBtc * price.USD;
const totalOutputSats = tx.vout.reduce((sum: number, v: any) => sum + (v.value || 0), 0);
return NextResponse.json({
success: true,
transaction: {
txid: tx.txid,
version: tx.version,
locktime: tx.locktime,
size: tx.size,
weight: tx.weight,
fee: {
sats: tx.fee,
btc: feeBtc.toFixed(8),
usd: feeUsd.toFixed(4),
rate: feeRate ? `${feeRate.toFixed(1)} sat/vB` : null,
},
inputs: tx.vin.length,
outputs: tx.vout.length,
totalOutput: {
sats: totalOutputSats,
btc: (totalOutputSats / 100_000_000).toFixed(8),
usd: (totalOutputSats / 100_000_000 * price.USD).toFixed(2),
},
status: {
confirmed: tx.status.confirmed,
blockHeight: tx.status.block_height || null,
blockHash: tx.status.block_hash || null,
blockTime: tx.status.block_time
? new Date(tx.status.block_time * 1000).toISOString()
: null,
confirmations,
},
},
_meta: {
source: 'mempool.space',
timestamp: new Date().toISOString(),
priceUsd: price.USD,
},
});
} catch {
return NextResponse.json(
{ success: false, error: 'Transaction not found', code: 'NOT_FOUND' },
{ status: 404 }
);
}
}
