Skip to content

feat: metrics middleware #153

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
dnjg merged 1 commit into from
Feb 10, 2026
Merged

feat: metrics middleware #153

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions go.mod
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ require (
github.com/cenkalti/backoff/v5 v5.0.3 // indirect
github.com/cespare/xxhash/v2 v2.3.0 // indirect
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
github.com/felixge/httpsnoop v1.0.4 // indirect
github.com/go-logr/logr v1.4.3 // indirect
github.com/go-logr/stdr v1.2.2 // indirect
github.com/google/uuid v1.6.0 // indirect
Expand All @@ -46,6 +47,7 @@ require (
github.com/aws/aws-sdk-go-v2/service/sqs v1.42.21
github.com/aws/aws-sdk-go-v2/service/ssm v1.67.8
github.com/stretchr/testify v1.11.1
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.65.0
go.opentelemetry.io/otel v1.40.0
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.40.0
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.39.0
Expand Down
4 changes: 4 additions & 0 deletions go.sum
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,8 @@ github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UF
github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
Expand All @@ -65,6 +67,8 @@ github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu
github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64=
go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.65.0 h1:7iP2uCb7sGddAr30RRS6xjKy7AZ2JtTOPA3oolgVSw8=
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.65.0/go.mod h1:c7hN3ddxs/z6q9xwvfLPk+UHlWRQyaeR1LdgfL/66l0=
go.opentelemetry.io/otel v1.40.0 h1:oA5YeOcpRTXq6NN7frwmwFR0Cn3RhTVZvXsP4duvCms=
go.opentelemetry.io/otel v1.40.0/go.mod h1:IMb+uXZUKkMXdPddhwAHm6UfOwJyh4ct1ybIlV14J0g=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.40.0 h1:9y5sHvAxWzft1WQ4BwqcvA+IFVUJ1Ya75mSAUnFEVwE=
Expand Down
30 changes: 30 additions & 0 deletions pkg/logger/middleware/metrics.go
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
package middleware

import (
"net/http"

"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
"go.opentelemetry.io/otel/trace/noop"
)

// MetricsMiddleware returns HTTP middleware that records standard OpenTelemetry
// server metrics (request duration, request body size, response body size).
// Tracing is disabled since TracerMiddleware already handles that.
//
// Usage:
//
// service.Use(resthandler.MetricsMiddleware())
//
// To skip health checks:
//
// service.Use(resthandler.MetricsMiddleware(
// otelhttp.WithFilter(func(r *http.Request) bool {
// return r.URL.Path != "/health"
// }),
// ))
func MetricsMiddleware(opts ...otelhttp.Option) func(http.Handler) http.Handler {
defaults := []otelhttp.Option{
otelhttp.WithTracerProvider(noop.NewTracerProvider()),
}
return otelhttp.NewMiddleware("http.server", append(defaults, opts...)...)
}