diff --git a/app/zadanieDnia1.js b/app/zadanieDnia1.js
index 8c20173..fd72c8f 100644
--- a/app/zadanieDnia1.js
+++ b/app/zadanieDnia1.js
@@ -1 +1,12 @@
-//Twój kod
\ No newline at end of file
+//Twój kod
+
+const http = require('http');
+const server = http.createServer((request,response) => {
+  response.setHeader("Content-Type", "text/html; charset=utf-8");
+  response.end('Hello world from back-end!');
+
+});
+
+server.listen(3000,() => {
+  console.log('Serwer http uruchomiony na porcie 3000.');
+});
diff --git a/app/zadanieDnia2.js b/app/zadanieDnia2.js
index 8c20173..7aa1f78 100644
--- a/app/zadanieDnia2.js
+++ b/app/zadanieDnia2.js
@@ -1 +1,13 @@
-//Twój kod
\ No newline at end of file
+//Twój kod
+
+const http = require('http');
+const server = http.createServer((request,response) => {
+  const userAgent = request.headers['user-agent'];
+  response.setHeader("Content-Type", "text/html; charset=utf-8");
+  response.end(userAgent);
+
+});
+
+server.listen(3000,() => {
+  console.log('Serwer http uruchomiony na porcie 3000.');
+});