Interface BasicLoggerOptions

Configuration for basicLogger.

Hierarchy

  • BasicLoggerOptions

Properties

destination? formatter? level? name?

Properties

Optional destination

destination?: ((line) => void)

Type declaration

    • (line): void

    • An optional function to use to print each log line.

      If this is specified, basicLogger calls it to write each line of output. The argument is a fully formatted log line, not including a linefeed. The function is only called for log levels that are enabled.

      If not specified, the default is console.error.

      Setting this property to anything other than a function will cause SDK initialization to fail.

      Parameters

      • line: string

      Returns void

Optional formatter

formatter?: ((...args) => string)

Type declaration

    • (...args): string

    • An optional formatter to use. The formatter should be compatible with node-style format strings like those used with util.format.

      If not specified, then a default implementation will be used. But using a node-specific implementation, for instance, would have performance and quality benefits.

      Parameters

      • Rest ...args: any[]
        Rest

      Returns string

Optional level

level?: LDLogLevel

The lowest level of log message to enable.

See LDLogLevel for a list of possible levels. Setting a level here causes all lower-importance levels to be disabled: for instance, if you specify 'warn', then 'debug' and 'info' are disabled.

If not specified, the default is 'info' (meaning that 'debug' is disabled).

Optional name

name?: string

Name to use for the log entires. The default name is LaunchDarkly.

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