spakky-logging 6.4.0

Structured logging system for Spakky Framework

spakky-logging

Structured logging system for Spakky Framework. Provides contextvars-based log context propagation, configurable formatters (Text, JSON, Pretty), automatic method call logging with masking and timing via AOP, and auto-configuration via PostProcessor.

Installation

pip install spakky-logging

Quick Start

1. Plugin Auto-Registration

spakky-logging is automatically loaded via load_plugins():

app = SpakkyApplication(ApplicationContext()).load_plugins().scan(my_app).start()

2. Annotate Methods with @logged

from spakky.plugins.logging import logged

class UserService:
    @logged()
    async def create_user(self, name: str, password: str) -> User:
        ...

3. Configure (Optional)

Override defaults via LoggingConfig:

from spakky.plugins.logging import LoggingConfig, LogFormat

config = LoggingConfig(
    level="DEBUG",
    format=LogFormat.JSON,
    mask_keys=frozenset({"password", "token", "secret"}),
    slow_threshold_ms=500,
)

4. Log Context Propagation

Bind contextual key-value pairs that are automatically included in all log records:

from spakky.plugins.logging import LogContext

LogContext.bind(request_id="req-123", user_id="u-456")

with LogContext.scope(trace_id="t-789"):
    # All logs within this block include trace_id
    ...

Features

Feature	Description
@logged() annotation	AOP-based automatic method call/result/error logging
LogContext	Contextvars-based structured context propagation
ContextInjectingFilter	Injects LogContext values into every LogRecord
SpakkyTextFormatter	Pipe-separated text format
SpakkyJsonFormatter	One JSON object per line
SpakkyPrettyFormatter	ANSI-colored multi-column format for development
LoggingConfig	@Configuration pod for centralized logging configuration
LoggingSetupPostProcessor	Auto-configures root logger on application start
Sensitive data masking	Masks password, token, secret etc. in log output
Slow call detection	Warns when method execution exceeds threshold
Result truncation	Truncates long return values in log output

License

MIT License