go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.46.0: WithRetry

Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify WithRetry in pkg:golang/go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp@v1.46.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:golang/go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp@v1.46.0
Demonstrate these symbols/APIs:
  - WithRetry

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.

{"case":{"caseId":"case:sha256:7ce8fae715aaba769859276166d5ea030df1492bf044c418ebbbc55dc9eb8abb","contract":["WithRetry configures exporter to retry transient export failures","WithRetry with Enabled false causes immediate export failure on transient errors","Shutdown cleanly terminates exporter configured with WithRetry"],"goal":"verify WithRetry in pkg:golang/go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp@v1.46.0","kind":"HOW","packages":["pkg:golang/go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp@v1.46.0"],"schemaVersion":1,"symbols":["WithRetry"]},"contractCommand":["go","run","./test"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"golang","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"go","schemaVersion":1},"license":"MIT-0","packages":["pkg:golang/go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp@v1.46.0"],"schemaVersion":1,"subject":"pkg:golang/go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp@v1.46.0","symbols":["WithRetry"],"verifierAdapter":"golang@1"}

module sample

go 1.26.6

require (
	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.46.0
	go.opentelemetry.io/otel/sdk/metric v1.46.0
)

require (
	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
	github.com/cespare/xxhash/v2 v2.3.0 // indirect
	github.com/go-logr/logr v1.4.4 // indirect
	github.com/go-logr/stdr v1.2.2 // indirect
	github.com/google/uuid v1.6.0 // indirect
	github.com/grpc-ecosystem/grpc-gateway/v2 v2.30.0 // indirect
	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
	go.opentelemetry.io/otel v1.46.0 // indirect
	go.opentelemetry.io/otel/metric v1.46.0 // indirect
	go.opentelemetry.io/otel/sdk v1.46.0 // indirect
	go.opentelemetry.io/otel/trace v1.46.0 // indirect
	go.opentelemetry.io/proto/otlp v1.11.0 // indirect
	golang.org/x/net v0.58.0 // indirect
	golang.org/x/sys v0.47.0 // indirect
	golang.org/x/text v0.41.0 // indirect
	google.golang.org/genproto/googleapis/api v0.0.0-20260819154853-08b0e4226688 // indirect
	google.golang.org/genproto/googleapis/rpc v0.0.0-20260819154853-08b0e4226688 // indirect
	google.golang.org/grpc v1.83.1 // indirect
	google.golang.org/protobuf v1.36.12 // indirect
)

github.com/cenkalti/backoff/v5 v5.0.3 h1:ZN+IMa753KfX5hd8vVaMixjnqRZ3y8CuJKRKj1xcsSM=
github.com/cenkalti/backoff/v5 v5.0.3/go.mod h1:rkhZdG3JZukswDf7f0cwqPNk4K0sa+F97BxZthm/crw=
github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
github.com/go-logr/logr v1.4.4 h1:tG4xh9yMsRCAiodLVTxyrkzSZ9+o0L1Kg/+cPVcbP/8=
github.com/go-logr/logr v1.4.4/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.30.0 h1:/Tnpcb2E0Pz/tN9s3bfEY2Q8ePCEX9iuS+cneUwncnw=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.30.0/go.mod h1:zOBXOsUaBSjKgmH4OGzV1esUpR3oUSCPYVd2cUBjKYY=
github.com/stretchr/testify v1.12.1 h1:EuwCh5fleGS7H32xRwO3wRGT7DxrDhLAT6FF8MpWDWE=
github.com/stretchr/testify v1.12.1/go.mod h1:MDEgiDPPsNp5cuIrHPPCyornHKgEVbtFUmoNlxoYthg=
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/otel v1.46.0 h1:FHt5/CDyVxi/8IM1CH7VE/rRgq3kLHa2mSTVMO8AWyc=
go.opentelemetry.io/otel v1.46.0/go.mod h1:Gj3SEScelsNC45tp4nSxRYlS+f5iez7W8XPMCt905kE=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.46.0 h1:AP23h/mFgb/lc7tdck1Kfn9qxsM8TAeNPCU5C3pzaps=
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.46.0/go.mod h1:K4EqCe1b4kGk5WR690ntg9LaBfsPoV32FwthbyoptuA=
go.opentelemetry.io/otel/metric v1.46.0 h1:yBnkXvgV7AXFILZc5K6IZe/CBFF3OS7BJ8ov6/lj0K8=
go.opentelemetry.io/otel/metric v1.46.0/go.mod h1:iPmdWqifKUdzziPkvvzIJXITl56fQx2mGM/DHLB3/2o=
go.opentelemetry.io/otel/metric/x v0.68.0 h1:TA/cBT23D3MnxYPwHL7YFOdYGdx0A0v+s7Mzotpd1dU=
go.opentelemetry.io/otel/metric/x v0.68.0/go.mod h1:agudOmvWhwUTjgibWDzxD2PoWYnpw5Ht5jISYOD2Hd4=
go.opentelemetry.io/otel/sdk v1.46.0 h1:h5CNQQjEbuQXY/JfZtgt3i7HVFV3aHPO2OAwO2eTYPI=
go.opentelemetry.io/otel/sdk v1.46.0/go.mod h1:GAERFXFt5SYCEB+YiKUbMBeza6UaDH7GmGOZEfh2gSM=
go.opentelemetry.io/otel/sdk/metric v1.46.0 h1:0piZ26EG4RBfebb2jhDH6ERCYHoVWduc3kLgPCwSnSE=
go.opentelemetry.io/otel/sdk/metric v1.46.0/go.mod h1:I1PbKrdVc8Qu8HYVDNtqVIwLwjNrhsV/uFuxfwg8mO4=
go.opentelemetry.io/otel/trace v1.46.0 h1:OULy7ccdJnZtJ0UDYFOIGaCmiWzJ8Vi2G/Rsu60qs1c=
go.opentelemetry.io/otel/trace v1.46.0/go.mod h1:J7GAXweO77XSFkB/rmAqk9D6ihszhFjLU+d9WuUxDLI=
go.opentelemetry.io/proto/otlp v1.11.0 h1:5rrYs0Ykyj50sdU/JU0x8etU+LubXWb+gED6TbEdMIk=
go.opentelemetry.io/proto/otlp v1.11.0/go.mod h1:SmVizdCOAm3XBtG1g1NnOdhW6jtddT72hLMhv8VwA8E=
go.yaml.in/yaml/v3 v3.0.5 h1:N6y/pJk8buWs9NY5ERU2HSMfm+IuD/OtfdAnq6kESPw=
go.yaml.in/yaml/v3 v3.0.5/go.mod h1:HVTZu1O7/Vkt2N+BFy8Zza+lnLsABggaTM2ZpNIGuKg=
golang.org/x/net v0.58.0 h1:ynWG7rqYi4ccpTEuPZ2QGWHktVEM9DMCj9yzDE0Q7To=
golang.org/x/net v0.58.0/go.mod h1:YwCddHnFlT7eLQqVprV19OnhLGtc5xOKgE0RyqgfWAU=
golang.org/x/sys v0.47.0 h1:o7XGOvZQCADBQQ4Y7VNq2dRWQR7JmOUW8Kxx4ZsNgWs=
golang.org/x/sys v0.47.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
golang.org/x/text v0.41.0 h1:vz/seA0lnX87Othu2f/0L24RcgrXD9/YFTSuGjj3rH8=
golang.org/x/text v0.41.0/go.mod h1:jvf1O8ajNzZqhSrQBPbutR/EB83Cc0CFrezNQIwbb5M=
gonum.org/v1/gonum v0.17.0 h1:VbpOemQlsSMrYmn7T2OUvQ4dqxQXU+ouZFQsZOx50z4=
gonum.org/v1/gonum v0.17.0/go.mod h1:El3tOrEuMpv2UdMrbNlKEh9vd86bmQ6vqIcDwxEOc1E=
google.golang.org/genproto/googleapis/api v0.0.0-20260819154853-08b0e4226688 h1:ax2KzoSRIZU/M0cIxri3pKxy99vniH1PVxWC6si/eZI=
google.golang.org/genproto/googleapis/api v0.0.0-20260819154853-08b0e4226688/go.mod h1:1RJ9BQGyNdZwkGc1eTqkErfRZ6RJyYPHZo73BZ1vQqI=
google.golang.org/genproto/googleapis/rpc v0.0.0-20260819154853-08b0e4226688 h1:cYNAzI2sUwhmCcoj9TxvihSrqsxt6uIkj3rDRhSDmW4=
google.golang.org/genproto/googleapis/rpc v0.0.0-20260819154853-08b0e4226688/go.mod h1:DjtHYE8FKJLivXcBEjGwndXfIC23G0VpXiXKqG179uA=
google.golang.org/grpc v1.83.1 h1:HIO0+BEtBP6soyqvqC8sNUjZ7bTs+0hFQuFF+RAy++Y=
google.golang.org/grpc v1.83.1/go.mod h1:kDyl6SKsiHKt0uylY5gtn5cEjkrIOhQOGDgIc4JGwzQ=
google.golang.org/protobuf v1.36.12 h1:pJOKDDOyeXErUroCihFAd5LQuwXBSpVnKGrj5o/fwxc=
google.golang.org/protobuf v1.36.12/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=

package sample

import (
	"context"
	"fmt"
	"time"

	"go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp"
)

// ExporterConfig defines options for creating an OTLP HTTP metric exporter with retry support.
type ExporterConfig struct {
	Endpoint        string
	Insecure        bool
	RetryEnabled    bool
	InitialInterval time.Duration
	MaxInterval     time.Duration
	MaxElapsedTime  time.Duration
}

// NewExporterWithRetry creates an OTLP HTTP metric exporter configured with retry settings.
func NewExporterWithRetry(ctx context.Context, cfg ExporterConfig) (*otlpmetrichttp.Exporter, error) {
	retryCfg := otlpmetrichttp.RetryConfig{
		Enabled:         cfg.RetryEnabled,
		InitialInterval: cfg.InitialInterval,
		MaxInterval:     cfg.MaxInterval,
		MaxElapsedTime:  cfg.MaxElapsedTime,
	}

	opts := []otlpmetrichttp.Option{
		otlpmetrichttp.WithRetry(retryCfg),
	}
	if cfg.Endpoint != "" {
		opts = append(opts, otlpmetrichttp.WithEndpoint(cfg.Endpoint))
	}
	if cfg.Insecure {
		opts = append(opts, otlpmetrichttp.WithInsecure())
	}

	exp, err := otlpmetrichttp.New(ctx, opts...)
	if err != nil {
		return nil, fmt.Errorf("failed to create otlp metric http exporter with retry: %w", err)
	}
	return exp, nil
}

{
  "schemaVersion": 1,
  "goal": "verify WithRetry in pkg:golang/go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp@v1.46.0",
  "kind": "HOW",
  "packages": [
    "pkg:golang/go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp@v1.46.0"
  ],
  "symbols": [
    "WithRetry"
  ]
}

package main

import (
	"context"
	"fmt"
	"net/http"
	"net/http/httptest"
	"os"
	"sync/atomic"
	"time"

	"go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp"
	"go.opentelemetry.io/otel/sdk/metric/metricdata"
	sample "sample"
)

func main() {
	ctx := context.Background()

	// 1. WithRetry configures exporter to retry transient export failures
	var retryAttempts atomic.Int32
	retryServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if retryAttempts.Add(1) == 1 {
			w.WriteHeader(http.StatusServiceUnavailable)
			return
		}
		w.WriteHeader(http.StatusOK)
	}))
	defer retryServer.Close()

	exp, err := sample.NewExporterWithRetry(ctx, sample.ExporterConfig{
		Endpoint:        retryServer.Listener.Addr().String(),
		Insecure:        true,
		RetryEnabled:    true,
		InitialInterval: 5 * time.Millisecond,
		MaxInterval:     20 * time.Millisecond,
		MaxElapsedTime:  2 * time.Second,
	})
	if err != nil {
		fmt.Fprintf(os.Stderr, "failed to create exporter: %v\n", err)
		os.Exit(1)
	}

	rm := &metricdata.ResourceMetrics{}
	if err := exp.Export(ctx, rm); err != nil {
		fmt.Fprintf(os.Stderr, "expected export to succeed after retry, got: %v\n", err)
		os.Exit(1)
	}
	if got := retryAttempts.Load(); got != 2 {
		fmt.Fprintf(os.Stderr, "expected 2 attempts (1 initial + 1 retry), got %d\n", got)
		os.Exit(1)
	}

	// 3. Shutdown cleanly terminates exporter configured with WithRetry
	if err := exp.Shutdown(ctx); err != nil {
		fmt.Fprintf(os.Stderr, "failed to shutdown exporter: %v\n", err)
		os.Exit(1)
	}

	// 2. WithRetry with Enabled false causes immediate export failure on transient errors
	var noRetryAttempts atomic.Int32
	failServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		noRetryAttempts.Add(1)
		w.WriteHeader(http.StatusServiceUnavailable)
	}))
	defer failServer.Close()

	expDisabled, err := sample.NewExporterWithRetry(ctx, sample.ExporterConfig{
		Endpoint:     failServer.Listener.Addr().String(),
		Insecure:     true,
		RetryEnabled: false,
	})
	if err != nil {
		fmt.Fprintf(os.Stderr, "failed to create disabled-retry exporter: %v\n", err)
		os.Exit(1)
	}
	defer expDisabled.Shutdown(ctx)

	if err := expDisabled.Export(ctx, rm); err == nil {
		fmt.Fprintf(os.Stderr, "expected export to fail when retry is disabled\n")
		os.Exit(1)
	}
	if got := noRetryAttempts.Load(); got != 1 {
		fmt.Fprintf(os.Stderr, "expected exactly 1 attempt when retry is disabled, got %d\n", got)
		os.Exit(1)
	}

	// Direct exporter construction with otlpmetrichttp.WithRetry
	directExp, err := otlpmetrichttp.New(
		ctx,
		otlpmetrichttp.WithEndpoint(retryServer.Listener.Addr().String()),
		otlpmetrichttp.WithInsecure(),
		otlpmetrichttp.WithRetry(otlpmetrichttp.RetryConfig{
			Enabled:         true,
			InitialInterval: 5 * time.Millisecond,
			MaxInterval:     20 * time.Millisecond,
			MaxElapsedTime:  2 * time.Second,
		}),
	)
	if err != nil {
		fmt.Fprintf(os.Stderr, "failed to create direct exporter with WithRetry: %v\n", err)
		os.Exit(1)
	}
	if err := directExp.Shutdown(ctx); err != nil {
		fmt.Fprintf(os.Stderr, "failed to shutdown direct exporter: %v\n", err)
		os.Exit(1)
	}

	fmt.Println("All contract assertions passed")
}