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53 lines
2.3 KiB
Go
53 lines
2.3 KiB
Go
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// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package otelhttp // import "go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
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import (
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"net/http"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/trace"
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)
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// Attribute keys that can be added to a span.
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const (
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ReadBytesKey = attribute.Key("http.read_bytes") // if anything was read from the request body, the total number of bytes read
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ReadErrorKey = attribute.Key("http.read_error") // If an error occurred while reading a request, the string of the error (io.EOF is not recorded)
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WroteBytesKey = attribute.Key("http.wrote_bytes") // if anything was written to the response writer, the total number of bytes written
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WriteErrorKey = attribute.Key("http.write_error") // if an error occurred while writing a reply, the string of the error (io.EOF is not recorded)
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)
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// Server HTTP metrics.
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const (
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serverRequestSize = "http.server.request.size" // Incoming request bytes total
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serverResponseSize = "http.server.response.size" // Incoming response bytes total
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serverDuration = "http.server.duration" // Incoming end to end duration, milliseconds
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)
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// Client HTTP metrics.
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const (
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clientRequestSize = "http.client.request.size" // Outgoing request bytes total
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clientResponseSize = "http.client.response.size" // Outgoing response bytes total
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clientDuration = "http.client.duration" // Outgoing end to end duration, milliseconds
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)
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// Filter is a predicate used to determine whether a given http.request should
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// be traced. A Filter must return true if the request should be traced.
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type Filter func(*http.Request) bool
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func newTracer(tp trace.TracerProvider) trace.Tracer {
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return tp.Tracer(ScopeName, trace.WithInstrumentationVersion(Version()))
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}
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