Add simpel TCP Server

package.json

@@ -0,0 +1,17 @@
+{
+  "name": "blockchain-project",
+  "version": "1.0.0",
+  "description": "Blockchain",
+  "scripts": {
+    "start": "tsc src/app.ts && node dist/app.js"
+  },
+  "author": "@garritfra",
+  "license": "ISC",
+  "dependencies": {
+    "parcel": "^1.10.3",
+    "parcel-bundler": "^1.10.3"
+  },
+  "devDependencies": {
+    "typescript": "^3.1.6"
+  }
+}

src/app.js

@@ -0,0 +1,17 @@
+const net = require("net");
+const server = net.createServer(c => {
+  //'connection' listener
+  console.log("client connected");
+
+  c.on("end", () => {
+    console.log("client disconnected");
+  });
+
+  c.write("Hi!");
+  c.pipe(c);
+});
+
+server.listen(42, () => {
+  //'listening' listener
+  console.log("server bound");
+});