Understand error codes

from writerai import Writer
import writerai

# Initialize the client. If you don't pass the `api_key` parameter,
# the client looks for the `WRITER_API_KEY` environment variable.
client = Writer()

try:
    response = client.chat.chat(
        messages=[
            {
                "role": "user",
                "content": "Write a haiku about programming"
            }
        ],
        model="palmyra-x5"
    )
    print("Success:", response.choices[0].message.content)
    
except writerai.APIConnectionError as e:
    print("Network error:", e)
    print("Cause:", e.__cause__)
    
except writerai.RateLimitError as e:
    print("Rate limited:", e)
    print("Status code:", e.status_code)
    # SDK automatically handles retries with exponential backoff
    
except writerai.AuthenticationError as e:
    print("Authentication failed:", e)
    print("Status code:", e.status_code)
    # Refresh API key or redirect to login
    
except writerai.BadRequestError as e:
    print("Invalid request:", e)
    print("Status code:", e.status_code)
    
except writerai.InternalServerError as e:
    print("Server error:", e)
    print("Status code:", e.status_code)
    # SDK automatically retries 5xx errors
    
except writerai.APIStatusError as e:
    print("API error:", e)
    print("Status code:", e.status_code)
    print("Response:", e.response)

import Writer from '@writer/writer-node';

// Initialize the client. If you don't pass the `apiKey` parameter,
// the client looks for the `WRITER_API_KEY` environment variable.
const client = new Writer({});

try {
  const response = await client.chat.chat({
    messages: [
      {
        role: 'user',
        content: 'Write a haiku about programming'
      }
    ],
    model: 'palmyra-x5'
  });
  
  console.log('Success:', response.choices[0].message.content);
} catch (error) {
  if (error.code === 'bad_request') {
    console.error('Invalid request:', error.message);
  } else if (error.code === 'authentication_error') {
    console.error('Authentication failed:', error.message);
    // Refresh API key or redirect to login
  } else if (error.code === 'rate_limit_error') {
    console.error('Rate limited:', error.message);
    // SDK automatically handles retries with exponential backoff
  } else if (error.code === 'internal_server_error') {
    console.error('Server error:', error.message);
    // SDK automatically retries 5xx errors
  } else if (error.code === 'connection_error') {
    console.error('Network error:', error.message);
  } else {
    console.error('Unexpected error:', error.message);
  }
}