Struct LoggerBuilder

pub struct LoggerBuilder { /* private fields */ }

Available on crate feature logger only.

Implementations

impl LoggerBuilder

pub fn fmt_level(level: &Level) -> String

Return colored string of level.

• TRACE/DEBUG => Magenta
• INFO => Green
• WARN => Yellow
• ERROR => Red

pub fn new() -> Self

pub fn json_writer(self, writer: WriterFn) -> Self

pub fn color_writer(self, writer: WriterFn) -> Self

pub fn json(self) -> Self

pub fn level(self, level: Level) -> Self

pub fn filename(self) -> Self

pub fn line_number(self) -> Self

pub fn handler<F>(self, handler: F) -> Self

where F: Fn(&Map<String, Value>) -> Pin<Box<dyn Future<Output = bool>>> + Send + 'static,

pub fn filter<F>(self, filter: F) -> Self

where F: Fn(&LogItem) -> bool + Send + 'static,

pub fn transformer<F>(self, transformer: F) -> Self

where F: Fn(LogItem) -> LogItem + Send + 'static,

pub fn start(self) -> (Logger, LoggerGuard)

Start logger. This method will spawn a new thread to print the log.