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23 lines
935 B
Go
23 lines
935 B
Go
// Package level implements leveled logging on top of package log. To use the
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// level package, create a logger as per normal in your func main, and wrap it
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// with level.NewFilter.
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//
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// var logger log.Logger
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// logger = log.NewLogfmtLogger(os.Stderr)
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// logger = level.NewFilter(logger, level.AllowInfoAndAbove()) // <--
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// logger = log.With(logger, "ts", log.DefaultTimestampUTC)
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//
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// Then, at the callsites, use one of the level.Debug, Info, Warn, or Error
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// helper methods to emit leveled log events.
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//
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// logger.Log("foo", "bar") // as normal, no level
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// level.Debug(logger).Log("request_id", reqID, "trace_data", trace.Get())
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// if value > 100 {
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// level.Error(logger).Log("value", value)
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// }
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//
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// NewFilter allows precise control over what happens when a log event is
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// emitted without a level key, or if a squelched level is used. Check the
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// Option functions for details.
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package level
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