Class Logger

A simple logger class.

Index

Constructors

Properties

_capture _historySize _level destination formatter history

Accessors

Methods

_log capture child debug error fatal info trace warn colorFormatter jsonFormatter stringFormatter systemdFormatter

Constructors

constructor

new Logger(
    options?: {
        destination?: WriteStream;
        formatter?: LogFormatter;
        historySize?: number;
        level?: string;
    },
): Logger
Parameters
- options: {
      destination?: WriteStream;
      formatter?: LogFormatter;
      historySize?: number;
      level?: string;
  } = {}
Returns Logger
- Defined in mojo.js-main/src/logger.ts:46

Properties

_capture

_capture: CapturedLogs | undefined = undefined

_historySize

_historySize: number | undefined

_level

_level: number = 7

destination

destination: WritableStream

Log destination stream.

formatter

formatter: LogFormatter

Log formatter.

history

history: LogEvent[] = []

The last few logged messages.

Accessors

level

get level(): string
Currently active log level.

Returns string
- Defined in mojo.js-main/src/logger.ts:147
set level(level: string): void
Parameters
- level: string
Returns void
- Defined in mojo.js-main/src/logger.ts:151

Methods

_log

_log(level: string, msg: string, context?: LogContext): void
Parameters
- level: string
- msg: string
- Optionalcontext: LogContext
Returns void
- Defined in mojo.js-main/src/logger.ts:170

capture

capture(level?: string): CapturedLogs
Capture log messages for as long as the returned object has not been stopped, useful for testing log messages.
Parameters
- level: string = ...
Returns CapturedLogs
- Defined in mojo.js-main/src/logger.ts:59

child

child(context: LogContext): ChildLogger
Create a child logger that will include context information with every log message.
Parameters
- context: LogContext
Returns ChildLogger
- Defined in mojo.js-main/src/logger.ts:76

debug

debug(msg: string, context?: LogContext): void
Log debug message.
Parameters
- msg: string
- Optionalcontext: LogContext
Returns void
- Defined in mojo.js-main/src/logger.ts:96

error

error(msg: string, context?: LogContext): void
Log error message.
Parameters
- msg: string
- Optionalcontext: LogContext
Returns void
- Defined in mojo.js-main/src/logger.ts:119

fatal

fatal(msg: string, context?: LogContext): void
Log fatal message.
Parameters
- msg: string
- Optionalcontext: LogContext
Returns void
- Defined in mojo.js-main/src/logger.ts:126

info

info(msg: string, context?: LogContext): void
Log infor message.
Parameters
- msg: string
- Optionalcontext: LogContext
Returns void
- Defined in mojo.js-main/src/logger.ts:133

trace

trace(msg: string, context?: LogContext): void
Log trace message.
Parameters
- msg: string
- Optionalcontext: LogContext
Returns void
- Defined in mojo.js-main/src/logger.ts:159

warn

warn(msg: string, context?: LogContext): void
Log warn message.
Parameters
- msg: string
- Optionalcontext: LogContext
Returns void
- Defined in mojo.js-main/src/logger.ts:166

`Static`colorFormatter

colorFormatter(data: LogEvent, destination?: WritableStream): string
Log formatter with color highlighting.
Parameters
- data: LogEvent
- destination: WritableStream = process.stderr
Returns string
- Defined in mojo.js-main/src/logger.ts:83

`Static`jsonFormatter

jsonFormatter(data: LogEvent): string
JSON log formatter.
Parameters
- data: LogEvent
Returns string
- Defined in mojo.js-main/src/logger.ts:140

`Static`stringFormatter

stringFormatter(data: LogEvent): string
Log formatter without color highlighting.
Parameters
- data: LogEvent
Returns string
- Defined in mojo.js-main/src/logger.ts:103

`Static`systemdFormatter

systemdFormatter(data: LogEvent): string
Log formatter for systemd.
Parameters
- data: LogEvent
Returns string
- Defined in mojo.js-main/src/logger.ts:111