Interface Logger

Logger interface for structured logging.

Example

logger.info('User logged in', { userId: '123', timestamp: new Date() });
logger.error('Failed to process order', { orderId: '456', error });
logger.debug('Processing request', { method: 'POST', path: '/api/users' });

interface Logger {
    log(
        level: LogLevel,
        message: string,
        context?: Record<string, unknown>,
    ): void;
    debug(message: string, context?: Record<string, unknown>): void;
    info(message: string, context?: Record<string, unknown>): void;
    warn(message: string, context?: Record<string, unknown>): void;
    error(message: string, context?: Record<string, unknown>): void;
    fatal(message: string, context?: Record<string, unknown>): void;
}

Index

Methods

log debug info warn error fatal

Methods

log

log(level: LogLevel, message: string, context?: Record<string, unknown>): void
Logs a message at a specific level with optional context.
Parameters
- level: LogLevel
  The log level
- message: string
  The log message
- Optionalcontext: Record<string, unknown>
  Optional context object
Returns void
Example
```
logger.log(LogLevel.INFO, 'User created', { userId: '123' });
```
- Defined in core/src/infrastructure/Logger.ts:28

debug

debug(message: string, context?: Record<string, unknown>): void
Logs a debug message.
Parameters
- message: string
  The log message
- Optionalcontext: Record<string, unknown>
  Optional context object
Returns void
Example
```
logger.debug('Processing request', { method: 'POST' });
```
- Defined in core/src/infrastructure/Logger.ts:41

info

info(message: string, context?: Record<string, unknown>): void
Logs an info message.
Parameters
- message: string
  The log message
- Optionalcontext: Record<string, unknown>
  Optional context object
Returns void
Example
```
logger.info('User logged in', { userId: '123' });
```
- Defined in core/src/infrastructure/Logger.ts:54

warn

warn(message: string, context?: Record<string, unknown>): void
Logs a warning message.
Parameters
- message: string
  The log message
- Optionalcontext: Record<string, unknown>
  Optional context object
Returns void
Example
```
logger.warn('Rate limit approaching', { current: 95, limit: 100 });
```
- Defined in core/src/infrastructure/Logger.ts:67

error

error(message: string, context?: Record<string, unknown>): void
Logs an error message.
Parameters
- message: string
  The log message
- Optionalcontext: Record<string, unknown>
  Optional context object (should include error)
Returns void
Example
```
logger.error('Database connection failed', { error, retryCount: 3 });
```
- Defined in core/src/infrastructure/Logger.ts:80

fatal

fatal(message: string, context?: Record<string, unknown>): void
Logs a fatal error message.
Parameters
- message: string
  The log message
- Optionalcontext: Record<string, unknown>
  Optional context object (should include error)
Returns void
Example
```
logger.fatal('Application crashed', { error, stack: error.stack });
```
- Defined in core/src/infrastructure/Logger.ts:93

Interface Logger

Example

Index

Methods

Methods

log

Parameters

Returns void

Example

debug

Parameters

Returns void

Example

info

Parameters

Returns void

Example

warn

Parameters

Returns void

Example

error

Parameters

Returns void

Example

fatal

Parameters

Returns void

Example

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