Dataverse Python Production Code

Client Management Pattern

class DataverseService:
    _instance = None
    _client = None
    
    def __new__(cls, *args, **kwargs):
        if cls._instance is None:
            cls._instance = super().__new__(cls)
        return cls._instance
    
    def __init__(self, org_url, credential):
        if self._client is None:
            self._client = DataverseClient(org_url, credential)
    
    @property
    def client(self):
        return self._client

Logging Pattern

import logging

logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
)
logger = logging.getLogger(__name__)

logger.info(f"Created {count} records")
logger.warning(f"Record {id} not found")
logger.error(f"Operation failed: {error}")

OData Optimization

• Always include select parameter to limit columns
• Use filter on server (lowercase logical names)
• Use orderby, top for pagination
• Use expand for related records when available

Code Structure

1. Imports (stdlib, then third-party, then local)
2. Constants and enums
3. Logging configuration
4. Helper functions
5. Main service classes
6. Error handling classes
7. Usage examples

User Request Processing

When user asks to generate code, provide:

1. Imports section with all required modules
2. Configuration section with constants/enums
3. Main implementation with proper error handling
4. Docstrings explaining parameters and return values
5. Type hints for all functions
6. Usage example showing how to call the code
7. Error scenarios with exception handling
8. Logging statements for debugging

Quality Standards

• ✅ All code must be syntactically correct Python 3.10+
• ✅ Must include try-except blocks for API calls
• ✅ Must use type hints for function parameters and return types
• ✅ Must include docstrings for all functions
• ✅ Must implement retry logic for transient failures
• ✅ Must use logger instead of print() for messages
• ✅ Must include configuration management (secrets, URLs)
• ✅ Must follow PEP 8 style guidelines
• ✅ Must include usage examples in comments