This release is a pre-release and may not be stable for production use.
apiconfig
Flexible, extensible configuration and authentication for Python API clients.
Table of Contents
- Project Overview
- Quickstart
- Installation
- Key Features
- Usage
- Practical Example: Real API Client Setup
- Logging
- Error Handling
- Testing and Coverage
- CI/CD
- Further Documentation
- License
Project Overview
apiconfig is a standalone Python library for managing API client configuration and authentication. It provides a robust, extensible foundation for building API clients, handling configuration (base URLs, timeouts, retries, headers) and supporting multiple authentication strategies (API key, Basic, Bearer, custom).
apiconfig is designed for:
- Developers building reusable, testable API clients.
- Projects needing flexible configuration sources (env, file, memory).
- Secure, pluggable authentication for HTTP APIs.
Quickstart
pip install apiconfig
from apiconfig import ClientConfig, ApiKeyAuth
auth = ApiKeyAuth(api_key="my-secret-key", header_name="X-API-Key")
config = ClientConfig(
hostname="api.example.com",
version="v1",
auth_strategy=auth,
timeout=10.0,
retries=3,
)
print(config.base_url) # https://api.example.com/v1
Installation
Install from PyPI:
pip install apiconfig
Or with Poetry:
poetry add apiconfig
Key Features
- Unified API Client Configuration: Manage base URLs, versions, headers, timeouts, retries, and more with a single, validated config object.
- Authentication Strategies: Built-in support for API Key, Basic, Bearer, and custom authentication via the Strategy Pattern.
- Config Providers: Load configuration from environment variables, files, or in-memory sources.
- Extensible: Easily add new authentication methods or config providers.
- Robust Error Handling: Clear, structured exception hierarchy for all config and auth errors.
- Type Safety: Strong type hints and type-checked public API.
- Logging Integration: Standard logging hooks for debugging and auditability.
- High Test Coverage: Over 95% coverage with unit and integration tests.
Usage
Basic Configuration
from apiconfig import ClientConfig
config = ClientConfig(
hostname="api.example.com",
version="v1",
headers={"X-My-Header": "value"},
timeout=10.0,
retries=3,
)
print(config.base_url) # https://api.example.com/v1
Authentication Strategies
API Key in Header
from apiconfig import ClientConfig, ApiKeyAuth
auth = ApiKeyAuth(api_key="my-secret-key", header_name="X-API-Key")
config = ClientConfig(
hostname="api.example.com",
version="v1",
auth_strategy=auth,
)
API Key in Query Parameter
from apiconfig import ApiKeyAuth
auth = ApiKeyAuth(api_key="my-secret-key", param_name="api_key")
Basic and Bearer Auth
from apiconfig import BasicAuth, BearerAuth
basic = BasicAuth(username="user", password="pass")
bearer = BearerAuth(access_token="my-jwt-token")
Custom Authentication
from apiconfig import CustomAuth
custom = CustomAuth(auth_callable=lambda: {"Authorization": "Custom xyz"})
Using Configuration Providers
Environment Variables
from apiconfig import EnvProvider
env = EnvProvider(prefix="MYAPI_")
config_dict = env.load()
# Example: MYAPI_HOSTNAME=api.example.com, MYAPI_TIMEOUT=5
File and Memory Providers
from apiconfig import FileProvider, MemoryProvider
file_provider = FileProvider(file_path="config.json")
file_config = file_provider.load()
memory_provider = MemoryProvider(data={"hostname": "api.example.com"})
memory_config = memory_provider.load()
Merging Configurations
from apiconfig import ClientConfig
base = ClientConfig(hostname="api.example.com", timeout=10)
override = ClientConfig(timeout=5, retries=2)
merged = base.merge(override)
Practical Example: Real API Client Setup
Below is a real-world example based on the integration tests. This pattern demonstrates how to use apiconfig to load configuration and secrets from environment variables, set up authentication, and make a request with an HTTP client (e.g., httpx):
import os
import httpx
from apiconfig import EnvProvider, ClientConfig, BearerAuth
# Load config and secrets from environment variables
env = EnvProvider()
config_dict = env.load()
# Get token and base URL from environment or use defaults
access_token = config_dict.get("FIKEN_ACCESS_TOKEN") or os.environ.get("FIKEN_ACCESS_TOKEN")
base_url = config_dict.get("FIKEN_BASE_URL") or os.environ.get("FIKEN_BASE_URL") or "https://api.fiken.no/api/v2"
# Set up authentication strategy if token is available
auth_strategy = BearerAuth(access_token) if access_token else None
# Create the API client configuration
client_config = ClientConfig(
hostname=base_url,
auth_strategy=auth_strategy,
)
# Prepare request headers using the auth strategy
headers = {}
if client_config.auth_strategy is not None:
headers.update(client_config.auth_strategy.prepare_request_headers())
# Make a real HTTP request using httpx
with httpx.Client(timeout=10.0) as client:
response = client.get(f"{client_config.base_url}/companies", headers=headers)
print(response.status_code, response.json())
This approach can be adapted for any API and authentication method supported by apiconfig. See the integration tests for more real-world examples.
Logging
apiconfig uses standard Python logging. To enable debug output:
import logging
logging.basicConfig(level=logging.DEBUG)
logging.getLogger("apiconfig").setLevel(logging.INFO)
Error Handling
All errors are structured and documented. Common exceptions include:
APIConfigErrorConfigurationErrorAuthenticationErrorInvalidConfigErrorMissingConfigErrorAuthStrategyError
Testing and Coverage
apiconfig is fully tested with pytest and coverage.py. To run tests and check coverage:
pytest --cov=apiconfig --cov-report=html
CI/CD
Continuous integration and deployment are managed with GitHub Actions. All pushes and pull requests are tested, and releases are published to PyPI after passing tests.
Further Documentation
- Documentation (latest)
- CONTRIBUTING.md — Contribution guidelines
- Bug Tracker
- PyPI Project Page
License
LGPLv3+. See LICENSE for details.
1 maintainer
Metadata
1 maintainer
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