github.com/v2fly/tools@v0.100.0/internal/event/keys/standard.go (about)

     1  // Copyright 2020 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package keys
     6  
     7  var (
     8  	// Msg is a key used to add message strings to label lists.
     9  	Msg = NewString("message", "a readable message")
    10  	// Label is a key used to indicate an event adds labels to the context.
    11  	Label = NewTag("label", "a label context marker")
    12  	// Start is used for things like traces that have a name.
    13  	Start = NewString("start", "span start")
    14  	// Metric is a key used to indicate an event records metrics.
    15  	End = NewTag("end", "a span end marker")
    16  	// Metric is a key used to indicate an event records metrics.
    17  	Detach = NewTag("detach", "a span detach marker")
    18  	// Err is a key used to add error values to label lists.
    19  	Err = NewError("error", "an error that occurred")
    20  	// Metric is a key used to indicate an event records metrics.
    21  	Metric = NewTag("metric", "a metric event marker")
    22  )