31 lines
1.0 KiB
Go
31 lines
1.0 KiB
Go
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// Copyright 2019 The OpenZipkin 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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/*
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Package propagation holds the required function signatures for Injection and
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Extraction as used by the Zipkin Tracer.
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Subpackages of this package contain officially supported standard propagation
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implementations.
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*/
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package propagation
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import "github.com/openzipkin/zipkin-go/model"
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// Extractor function signature
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type Extractor func() (*model.SpanContext, error)
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// Injector function signature
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type Injector func(model.SpanContext) error
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