go/opentelemetry-go
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Code Issues Releases Activity

Allow additional context to be added when WithHeaders is used in OTLP gRPC traces exporter (#5915)

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Fix https://github.com/open-telemetry/opentelemetry-go/issues/5904
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pree-dew 2024-10-24 13:03:39 +05:30 committed by GitHub
parent 3429e15b9a
commit 30c4a9a330
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3 changed files with 11 additions and 1 deletions
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1
CHANGELOG.md
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@ -26,6 +26,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
- `go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc` now keeps the metadata already present in the context when `WithHeaders` is used. (#5892)
- `go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc` now keeps the metadata already present in the context when `WithHeaders` is used. (#5911)
- `go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc` now keeps the metadata already present in the context when `WithHeaders` is used. (#5915)
<!-- Released section -->
<!-- Don't change this section unless doing release -->

7
exporters/otlp/otlptrace/otlptracegrpc/client.go
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@ -229,7 +229,12 @@ func (c *client) exportContext(parent context.Context) (context.Context, context
}
if c.metadata.Len() > 0 {
ctx = metadata.NewOutgoingContext(ctx, c.metadata)
md := c.metadata
if outMD, ok := metadata.FromOutgoingContext(ctx); ok {
md = metadata.Join(md, outMD)
}
ctx = metadata.NewOutgoingContext(ctx, md)
}
// Unify the client stopCtx with the parent.

4
exporters/otlp/otlptrace/otlptracegrpc/client_test.go
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@ -19,6 +19,7 @@ import (
"google.golang.org/grpc/backoff"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/encoding/gzip"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/status"
"go.opentelemetry.io/otel"
@ -216,6 +217,8 @@ func TestNewWithHeaders(t *testing.T) {
t.Cleanup(func() { require.NoError(t, mc.stop()) })
ctx := context.Background()
additionalKey := "additional-custom-header"
ctx = metadata.AppendToOutgoingContext(ctx, additionalKey, "additional-value")
exp := newGRPCExporter(t, ctx, mc.endpoint,
otlptracegrpc.WithHeaders(map[string]string{"header1": "value1"}))
t.Cleanup(func() { require.NoError(t, exp.Shutdown(ctx)) })
@ -224,6 +227,7 @@ func TestNewWithHeaders(t *testing.T) {
headers := mc.getHeaders()
require.Regexp(t, "OTel OTLP Exporter Go/1\\..*", headers.Get("user-agent"))
require.Len(t, headers.Get("header1"), 1)
require.Len(t, headers.Get(additionalKey), 1)
assert.Equal(t, "value1", headers.Get("header1")[0])
}