refactor(): Rewrite benchmark script to TS

tools/benchmarks/check-benchmarks.ts

@@ -0,0 +1 @@
+// TODO: implement @krzkaczor

tools/benchmarks/get-benchmarks.ts

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+import wrkPkg = require('wrk');
+import { spawn } from 'child_process';
+import { join } from 'path';
+
+const wrk = (options: any) =>
+  new Promise((resolve, reject) =>
+    wrkPkg(options, (err: any, result: any) =>
+      err ? reject(err) : resolve(result),
+    ),
+  );
+
+const sleep = (time: number) =>
+  new Promise(resolve => setTimeout(resolve, time));
+
+const BENCHMARK_PATH = join(__dirname, '../../benchmarks');
+const LIBS = ['express', 'fastify', 'nest', 'nest-fastify'];
+
+async function runBenchmarkOfLib(lib: string) {
+  const libPath = join(BENCHMARK_PATH, `${lib}.js`);
+  const process = spawn('node', [libPath], {
+    detached: true,
+    stdio: 'ignore'
+  });
+
+  process.unref();
+
+  await sleep(2000);
+
+  const result = await wrk({
+    threads: 8,
+    duraton: '10s',
+    connections: 1024,
+    url: 'http://localhost:3000',
+  });
+
+  process.kill();
+
+  return result;
+}
+
+export async function getBenchmarks() {
+  const results = {};
+  for await (const lib of LIBS) {
+    const result = await runBenchmarkOfLib(lib);
+    results[lib] = result;
+  }
+  return results;
+}