/**
* Health Check — Task 14.4
* API status, upstream status, RPC health, facilitator status, version/uptime
*/
import { NextRequest, NextResponse } from 'next/server';
import { checkRpcHealth } from '@/lib/rpc';
import { getBlockHeight } from '@/lib/bitcoin';
import { FACILITATORS } from '@/lib/x402';
const startTime = Date.now();
export async function GET(request: NextRequest) {
const checks: Record<string, { status: string; latencyMs?: number; detail?: string }> = {};
// 1. mempool.space
try {
const start = Date.now();
const res = await fetch('https://mempool.space/api/blocks/tip/height');
checks.mempool = {
status: res.ok ? 'ok' : 'degraded',
latencyMs: Date.now() - start,
};
} catch {
checks.mempool = { status: 'down' };
}
// 2. RPC health (Whistle + EVM chains)
try {
const rpcHealth = await checkRpcHealth();
checks.solana_rpc = {
status: rpcHealth.solana.status,
latencyMs: rpcHealth.solana.latencyMs,
detail: rpcHealth.solana.url,
};
for (const [chain, health] of Object.entries(rpcHealth.evm)) {
checks[`evm_${chain}`] = {
status: health.status,
latencyMs: health.latencyMs,
};
}
} catch {
checks.rpc = { status: 'error', detail: 'RPC health check failed' };
}
// 3. Facilitator reachability
for (const [network, config] of Object.entries(FACILITATORS)) {
try {
const start = Date.now();
const res = await fetch(config.url, { method: 'HEAD' }).catch(() => null);
checks[`facilitator_${network}`] = {
status: res ? 'reachable' : 'unreachable',
latencyMs: Date.now() - start,
detail: config.provider,
};
} catch {
checks[`facilitator_${network}`] = { status: 'unreachable' };
}
}
// Overall status
const allOk = Object.values(checks).every(c => c.status === 'ok' || c.status === 'reachable');
const anyDown = Object.values(checks).some(c => c.status === 'down' || c.status === 'error');
const overallStatus = anyDown ? 'degraded' : allOk ? 'healthy' : 'partial';
return NextResponse.json({
status: overallStatus,
version: '3.0.0',
uptime: Math.floor((Date.now() - startTime) / 1000),
uptimeHuman: formatUptime(Date.now() - startTime),
checks,
endpoints: {
total: 31,
live: 31,
coming: 0,
},
x402: {
enabled: process.env.X402_ENABLED === 'true',
networks: ['base', 'solana'],
},
timestamp: new Date().toISOString(),
});
}
function formatUptime(ms: number): string {
const seconds = Math.floor(ms / 1000);
const minutes = Math.floor(seconds / 60);
const hours = Math.floor(minutes / 60);
const days = Math.floor(hours / 24);
if (days > 0) return `${days}d ${hours % 24}h`;
if (hours > 0) return `${hours}h ${minutes % 60}m`;
return `${minutes}m ${seconds % 60}s`;
}
