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// REST-Anfrage mit der Fetch API
fetch('https://api.example.com/users', {
  method: 'GET',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer your_token_here'
  }
})
  .then(response => response.json())
  .then(data => console.log('User data:', data))
  .catch(error => console.error('Error:', error));

<!-- SOAP-Anfrage für Kundendaten -->
<soapenv:Envelope
  xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
  <soapenv:Header/>
  <soapenv:Body>
    <GetUserData xmlns="http://example.com/soap">
      <UserId>12345</UserId>
    </GetUserData>
  </soapenv:Body>
</soapenv:Envelope>

// GraphQL-Abfrage mit der Fetch API
const query = `{
  user(id: "12345") {
    name
    email
    posts { title content }
  }
}`;
fetch('https://api.example.com/graphql', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({ query })
})
  .then(response => response.json())
  .then(data => console.log(data));

// WebSocket-Verbindung in JavaScript
const socket = new WebSocket('wss://example.com/ws');
socket.onopen = () => {
  socket.send(JSON.stringify({ message: 'Hello' }));
};
socket.onmessage = event => {
  const data = JSON.parse(event.data);
  console.log('Received:', data);
};
socket.onclose = () => console.log('WebSocket closed');

# MySQL-Verbindung in Python
import mysql.connector

conn = mysql.connector.connect(
    host="localhost",
    user="username",
    password="password",
    database="test_db"
)
cursor = conn.cursor()
cursor.execute("SELECT * FROM users")
for row in cursor:
    print(row)
conn.close()