From ff7bf73e93addd4fb2b8fe75fe59b6707aad51bd Mon Sep 17 00:00:00 2001
From: Christopher Hase <Christopher.Hase@telekom.de>
Date: Mon, 14 Apr 2025 11:24:56 +0200
Subject: [PATCH] add http-server part 8.3 finish

---
 README.md         | 22 ++++++++++++++++++----
 backend/broker.ts |  2 --
 backend/server.ts | 24 +-----------------------
 frontend/event.ts | 17 +----------------
 4 files changed, 20 insertions(+), 45 deletions(-)

diff --git a/README.md b/README.md
index 2599ac8..806f022 100644
--- a/README.md
+++ b/README.md
@@ -11,22 +11,36 @@ This app will send an I-Ching horoscope to the pre-configured mailhog instance i
 
 This app uses the I-Ching library app https://github.com/Velfi/i-ching.git.
 
-## Configuration
+<!--## Configuration
 Properties of the app can be configured in the file config.json. It is possible to configure the mail host and port.
-It is also possible to configure the intervall of days between the sending of horoscopes and the time of sending. The default is to send one email every seven days at 8 am.
+It is also possible to configure the intervall of days between the sending of horoscopes and the time of sending. The default is to send one email every seven days at 8 am.-->
 
 ## First Start
 The app can be deployed by running:
 
 ```bash
+$     kubectl apply -f ingress.yaml 
+$     kubectl apply -f service.yaml 
 $     kubectl apply -f deployment.yaml 
 ```
 
 When a pod with the app is initally started, one email will be sent to the configured receiver.
 
-## Testing
+## Backend Server
+
+The backend server is running inside the pod on the address http://localhost:8090/command. If a POST is sent to this address, the server will run the main logic of this app:
+An E-Mail with an I-Ching horoscope (provided by the library app) will be sent to the configured email address.
+
+The backend server can be tested from inside the pod by calling 'curl -X POST http://localhost:8090/command' from the console.
+
+## HTTP Server
+
+The frontend server is running inside the pod on the address http://localhost:8080/iching. It provides an HTML homepage with a button. Upon pressing the button, the backend server will be called (to send an E-Mail).
+
+<!--## Testing
 The Jest unit tests can be run with
 
 ```bash
 $     npm test
-```
\ No newline at end of file
+```
+-->
\ No newline at end of file
diff --git a/backend/broker.ts b/backend/broker.ts
index ab96233..391235b 100644
--- a/backend/broker.ts
+++ b/backend/broker.ts
@@ -18,8 +18,6 @@ interface Node {
 
 //var config : Config;
 
-//const nodemailer = require('nodemailer');
-
 export function executeCommand(): void {
 
   exec('iching divine', (error, stdout, stderr) => {
diff --git a/backend/server.ts b/backend/server.ts
index a5446b1..707fcd3 100644
--- a/backend/server.ts
+++ b/backend/server.ts
@@ -6,28 +6,6 @@ const app = express();
 const port = 8090;
 
 app.use(cors());
-// CORS aktivieren und den Origin explizit setzen
-/*app.use(cors({
-  //origin: 'http://localhost:8080',  // Erlaubt Anfragen vom Frontend (localhost:8080)
-  origin: 'http://127.0.0.1:8080',
-  //origin: 'https://192-168-197-2.c-one-infra.de',
-  methods: ['GET', 'POST', 'OPTIONS'], // Zulässige Methoden
-  allowedHeaders: ['Content-Type'],  // Zulässige Header
-  credentials: true                  // Falls du Cookies oder Auth-Daten senden möchtest
-}));
-
-// Füge dies hinzu, um die OPTIONS-Anfragen korrekt zu behandeln
-app.options('/api/command', cors()); // für eine bestimmte Route
-
-// Verwende die Middleware, um POST-Body als JSON zu lesen
-app.use(express.json());
-
-app.use((req, res, next) => {
-  console.log('CORS headers set');
-  next();
-});*/
-
-//app.post('/api/command', (req, res) => {
 
 app.post('/command', (req, res) => {
   executeCommand();
@@ -36,4 +14,4 @@ app.post('/command', (req, res) => {
 
 app.listen(port, '0.0.0.0', () => {
     console.log(`Server läuft auf http://0.0.0.0:${port}`);
-});
\ No newline at end of file
+});
diff --git a/frontend/event.ts b/frontend/event.ts
index e7f5fe5..321c88b 100644
--- a/frontend/event.ts
+++ b/frontend/event.ts
@@ -1,6 +1,6 @@
 function handleClick(): void {
   console.log("Der Button wurde geklickt!");
-  alert("Hallo von TypeScript!");
+  //alert("Hallo von TypeScript!");
 
   fetch("/iching/api/command", { method: "POST" })
     .then(res => res.text())
@@ -12,18 +12,3 @@ document.addEventListener("DOMContentLoaded", () => {
   const button = document.getElementById("myButton");
   button?.addEventListener("click", handleClick);
 });
-
-
-  
-  //fetch("http://192-168-197-2.c-one-infra.de:8090/api/command", { method: "POST" })
-
-  //fetch("http://localhost:8090/api/command", { 
-  //fetch("/api/command", {
-
-  /*fetch("/api/command", { method: "POST" })
-    .then(res => res.text())
-    .then(text => console.log("Server sagt:", text));*/
-    
-    /*fetch("https://192-168-197-2.c-one-infra.de/api/command", { method: "POST" })
-    .then(res => res.text())
-    .then(text => console.log("Server sagt:", text));    */
\ No newline at end of file