hexastack-logging

Structured logging, security sanitization, and adapter integrations (Loguru, Rich, Structlog) for Hexastack.

1. Overview & Capabilities

hexastack-logging provides high-performance, structured telemetry across the entire Hexastack lifecycle:

• Multiple Backend Adapters: Native implementations for Loguru, Rich, Structlog, and standard library structured logging.
• Security & PII Sanitization: Automatic masking of sensitive fields (passwords, tokens, authorization headers, credit cards).
• Formatters: JSON formatting for cloud aggregators (Datadog, CloudWatch) and colored console formatting for local development.
• Context & Correlation Integration: Injects active correlation_id from async context into all log outputs.
• Log Filtering & Levels: Fine-grained level filtering and module-based log routing.

2. Package Anatomy & Key Components

hexastack_logging/
├── domain/          # LogRecord, LogLevel, Logging exceptions
├── ports/           # LoggerPort, FormatterPort, FilterPort, SanitizerPort
├── adapters/        # LoguruAdapter, RichAdapter, StructlogAdapter, StructuredLogger
└── infra/           # LoggingBootstrapper (order=10), Formatters, Sanitizers, Config

Key Exports

3. Monorepo & Sibling Relationships

graph TD
    subgraph SiblingConsumers ["Consumers of LoggerPort"]
        CQRS["hexastack-cqrs (LoggingMiddleware)"]
        FASTAPI["hexastack-fastapi (HttpLoggingMiddleware)"]
        GRPC["hexastack-grpc (LoggingServerInterceptor)"]
        GRAPHQL["hexastack-graphql (CorrelationExtension)"]
        CORE_CTX["hexastack-core (get_correlation_id)"]
    end

    subgraph LoggingSubsystem ["hexastack-logging"]
        BOOT["LoggingBootstrapper (order=10)"]
        ADAPTERS["Adapters (Loguru / Rich / Structlog / StdLib)"]
        SAN["PII Sanitizer & JSON Formatter"]
    end

    BOOT --> ADAPTERS
    ADAPTERS --> SAN
    ADAPTERS -. reads context .-> CORE_CTX

    CQRS -. resolves from DI .-> ADAPTERS
    FASTAPI -. resolves from DI .-> ADAPTERS
    GRPC -. resolves from DI .-> ADAPTERS
    GRAPHQL -. resolves from DI .-> ADAPTERS

Explicit Dependencies (Direct)

• hexastack-core: Abstract LoggerPort, DI container, and async context tracking.

Implied / Behavioral Relationships (DI-Mediated)

• Dependency Provider: Binds LoggerPort into the DI container at order=10 (before CQRS order=20), ensuring telemetry is available to all subsequent bootstrappers and middlewares.
• Correlation ID Synchronization: Automatically reads and outputs get_correlation_id() stored in hexastack_core.utils.context.

Optional Integrations (Extras)

• [loguru]: Enables loguru>=0.7.0.
• [rich]: Enables rich>=13.0.0 console formatting.
• [structlog]: Enables structlog>=24.0.0.
• [all]: Installs all optional logging backends.

4. Installation

# Standalone standard library logging
pip install hexastack-logging

# With Loguru and Rich support
pip install "hexastack-logging[loguru,rich]"

# All logging backends
pip install "hexastack-logging[all]"

# Via umbrella package
pip install hexastack

5. Configuration Reference

[hexastack.logging]
level = "INFO" # "DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"
format = "json" # "json", "console"
backend = "structlog" # "standard", "loguru", "rich", "structlog"
sanitize_keys = ["password", "token", "secret", "authorization", "api_key"]

6. Quickstart Example

from hexastack_core.infra.bootstrap import bootstrap
from hexastack_core.ports.logging import LoggerPort

runtime = bootstrap(
    config_overrides={
        "logging": {
            "level": "DEBUG",
            "format": "console",
        }
    }
)

logger = runtime.container.get(LoggerPort)
logger.info("Application initialized successfully", extra={"user_count": 42})