diff --git a/app.js b/app.js
new file mode 100755
index 0000000..d301821
--- /dev/null
+++ b/app.js
@@ -0,0 +1,10 @@
+const express = require('express');
+const app = express();
+
+app.use((req, res, next) => {
+    res.status(200).json({
+        message: "C'est bon!"
+    }); // pour envoyer une json response 200
+});
+
+module.exports = app;
\ No newline at end of file
diff --git a/server.js b/server.js
index 719865b..ed6d5b4 100755
--- a/server.js
+++ b/server.js
@@ -1 +1,8 @@
-const http = require('http');
\ No newline at end of file
+const http = require('http');
+const app = require('./app');
+
+const port = process.env.PORT || 3000;
+
+const server = http.createServer(app);
+
+server.listen(port);
\ No newline at end of file