amplitude-experiment

import os from amplitude_experiment import Experiment, User # Get your deployment's API key from environment variables API_KEY = os.environ.get('AMPLITUDE_EXPERIMENT_API_KEY', 'YOUR_DEPLOYMENT_KEY') # Initialize the experiment remote evaluation client # It's recommended to initialize the client once on application startup. experiment = Experiment.initialize_remote(API_KEY) # Define a user for whom variants should be fetched user = User( device_id="abcdefg", user_id="user@company.com", user_properties={'premium': True, 'country': 'USA'} ) async def get_variants_and_evaluate(): try: # Fetch variants for the user asynchronously variants = await experiment.fetch_v2(user) # Access a flag's variant feature_flag_key = 'your-feature-flag-key' variant = variants.get(feature_flag_key) if variant: print(f"Variant for '{feature_flag_key}': {variant.value}") if variant.value == 'on': # Implement 'on' behavior print("Feature is ON for this user.") elif variant.value == 'control': # Implement 'control' behavior print("User is in control group.") else: # Implement other variant behavior print(f"User is in variant: {variant.value}") else: print(f"Flag '{feature_flag_key}' not found or variant is None.") except Exception as e: print(f"An error occurred: {e}") # In a real application, you would call get_variants_and_evaluate() # within an async context, e.g., using asyncio.run() # import asyncio # asyncio.run(get_variants_and_evaluate())