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Class NullLogger

Dummy implementation of logger that doesn't do anything.

It can be used in testing or in situations when logger is required but shall be disabled.

see

ILogger

Hierarchy

  • NullLogger

Implements

Index

Constructors

Methods

Constructors

constructor

  • Creates a new instance of the logger.

    Returns NullLogger

Methods

debug

  • debug(correlationId: string, message: string, ...args: any[]): void

  • Logs a high-level debug information for troubleshooting.

    Parameters

    • correlationId: string

      (optional) transaction id to trace execution through call chain.

    • message: string

      a human-readable message to log.

    • Rest ...args: any[]

      arguments to parameterize the message.

    Returns void

error

  • error(correlationId: string, error: Error, message: string, ...args: any[]): void

  • Logs recoverable application error.

    Parameters

    • correlationId: string

      (optional) transaction id to trace execution through call chain.

    • error: Error

      an error object associated with this message.

    • message: string

      a human-readable message to log.

    • Rest ...args: any[]

      arguments to parameterize the message.

    Returns void

fatal

  • fatal(correlationId: string, error: Error, message: string, ...args: any[]): void

  • Logs fatal (unrecoverable) message that caused the process to crash.

    Parameters

    • correlationId: string

      (optional) transaction id to trace execution through call chain.

    • error: Error

      an error object associated with this message.

    • message: string

      a human-readable message to log.

    • Rest ...args: any[]

      arguments to parameterize the message.

    Returns void

getLevel

  • Gets the maximum log level. Messages with higher log level are filtered out.

    Returns LogLevel

    the maximum log level.

info

  • info(correlationId: string, message: string, ...args: any[]): void

  • Logs an important information message

    Parameters

    • correlationId: string

      (optional) transaction id to trace execution through call chain.

    • message: string

      a human-readable message to log.

    • Rest ...args: any[]

      arguments to parameterize the message.

    Returns void

log

  • log(level: LogLevel, correlationId: string, error: Error, message: string, ...args: any[]): void

  • Logs a message at specified log level.

    Parameters

    • level: LogLevel

      a log level.

    • correlationId: string

      (optional) transaction id to trace execution through call chain.

    • error: Error

      an error object associated with this message.

    • message: string

      a human-readable message to log.

    • Rest ...args: any[]

      arguments to parameterize the message.

    Returns void

setLevel

  • Set the maximum log level.

    Parameters

    • value: LogLevel

      a new maximum log level.

    Returns void

trace

  • trace(correlationId: string, message: string, ...args: any[]): void

  • Logs a low-level debug information for troubleshooting.

    Parameters

    • correlationId: string

      (optional) transaction id to trace execution through call chain.

    • message: string

      a human-readable message to log.

    • Rest ...args: any[]

      arguments to parameterize the message.

    Returns void

warn

  • warn(correlationId: string, message: string, ...args: any[]): void

  • Logs a warning that may or may not have a negative impact.

    Parameters

    • correlationId: string

      (optional) transaction id to trace execution through call chain.

    • message: string

      a human-readable message to log.

    • Rest ...args: any[]

      arguments to parameterize the message.

    Returns void

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