feat(weaviate): add Braintrust tracing for Weaviate generative search

examples/internal/weaviate/go.mod

@@ -0,0 +1,72 @@
+module example.com/weaviate
+
+go 1.26
+
+toolchain go1.26.1
+
+require (
+	github.com/braintrustdata/braintrust-sdk-go v0.14.0
+	github.com/braintrustdata/braintrust-sdk-go/trace/contrib/weaviate v0.14.0
+	github.com/weaviate/weaviate v1.37.2
+	github.com/weaviate/weaviate-go-client/v5 v5.7.3
+	go.opentelemetry.io/otel v1.46.0
+	go.opentelemetry.io/otel/sdk v1.44.0
+)
+
+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/go-openapi/analysis v0.24.1 // indirect
+	github.com/go-openapi/errors v0.22.4 // indirect
+	github.com/go-openapi/jsonpointer v0.22.4 // indirect
+	github.com/go-openapi/jsonreference v0.21.4 // indirect
+	github.com/go-openapi/loads v0.23.2 // indirect
+	github.com/go-openapi/runtime v0.29.2 // indirect
+	github.com/go-openapi/spec v0.22.3 // indirect
+	github.com/go-openapi/strfmt v0.25.0 // indirect
+	github.com/go-openapi/swag v0.23.0 // indirect
+	github.com/go-openapi/swag/conv v0.25.4 // indirect
+	github.com/go-openapi/swag/fileutils v0.25.1 // indirect
+	github.com/go-openapi/swag/jsonname v0.25.4 // indirect
+	github.com/go-openapi/swag/jsonutils v0.25.4 // indirect
+	github.com/go-openapi/swag/loading v0.25.4 // indirect
+	github.com/go-openapi/swag/mangling v0.25.1 // indirect
+	github.com/go-openapi/swag/stringutils v0.25.4 // indirect
+	github.com/go-openapi/swag/typeutils v0.25.4 // indirect
+	github.com/go-openapi/swag/yamlutils v0.25.4 // indirect
+	github.com/go-openapi/validate v0.25.1 // indirect
+	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.29.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/oklog/ulid v1.3.1 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/stretchr/objx v0.5.3 // indirect
+	github.com/stretchr/testify v1.12.1 // indirect
+	go.mongodb.org/mongo-driver v1.17.6 // indirect
+	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.44.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.44.0 // indirect
+	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.44.0 // indirect
+	go.opentelemetry.io/otel/metric v1.46.0 // indirect
+	go.opentelemetry.io/otel/trace v1.46.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.11.0 // indirect
+	go.yaml.in/yaml/v3 v3.0.5 // indirect
+	golang.org/x/net v0.57.0 // indirect
+	golang.org/x/oauth2 v0.36.0 // indirect
+	golang.org/x/sync v0.22.0 // indirect
+	golang.org/x/sys v0.47.0 // indirect
+	golang.org/x/text v0.40.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20260720211330-0afa2a65878a // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260720211330-0afa2a65878a // indirect
+	google.golang.org/grpc v1.82.1 // indirect
+	google.golang.org/protobuf v1.36.11 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
+
+replace github.com/braintrustdata/braintrust-sdk-go => ../../..
+
+replace github.com/braintrustdata/braintrust-sdk-go/trace/contrib/weaviate => ../../../trace/contrib/weaviate

examples/internal/weaviate/go.sum

@@ -0,0 +1,140 @@
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+go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
+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 v0.57.0 h1:K5+3DljvIuDG9/Jv9rvyMywYNFCQ9RSUY6OOTTkT+tE=
+golang.org/x/net v0.57.0/go.mod h1:KpXc8iv+r3XplLAG/f7Jsf9RPszJzdR0f58q9vGOuEU=
+golang.org/x/oauth2 v0.36.0 h1:peZ/1z27fi9hUOFCAZaHyrpWG5lwe0RJEEEeH0ThlIs=
+golang.org/x/oauth2 v0.36.0/go.mod h1:YDBUJMTkDnJS+A4BP4eZBjCqtokkg1hODuPjwiGPO7Q=
+golang.org/x/sync v0.22.0 h1:SZjpbeLmrCk4xhRSZFNZW5gFUeCeFgjekvI/+gfScek=
+golang.org/x/sync v0.22.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
+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 v0.40.0 h1:Ub2Z6/xjgF1WrYQz2nuITOEegKFtiIy+rieRJ5lHZKs=
+golang.org/x/text v0.40.0/go.mod h1:hpnzDAfGV753zIKo+wk3u1bVKCGPbrnF7+7LBF/UHVY=
+gonum.org/v1/gonum v0.17.0 h1:VbpOemQlsSMrYmn7T2OUvQ4dqxQXU+ouZFQsZOx50z4=
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+gopkg.in/dnaeon/go-vcr.v3 v3.2.0/go.mod h1:2IMOnnlx9I6u9x+YBsM3tAMx6AlOxnJ0pWxQAzZ79Ag=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

examples/internal/weaviate/main.go

@@ -0,0 +1,126 @@
+// Weaviate - generative search (RAG) with tracing.
+//
+// This expects a local Weaviate instance with the generative-openai module
+// enabled, e.g.:
+//
+//	docker run -p 8080:8080 -p 50051:50051 \
+//	  -e ENABLE_MODULES=generative-openai \
+//	  -e AUTHENTICATION_ANONYMOUS_ACCESS_ENABLED=true \
+//	  semitechnologies/weaviate:1.27.0
+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/weaviate/weaviate-go-client/v5/weaviate"
+	"github.com/weaviate/weaviate-go-client/v5/weaviate/graphql"
+	"github.com/weaviate/weaviate/entities/models"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/sdk/trace"
+
+	"github.com/braintrustdata/braintrust-sdk-go"
+	tracewaeviate "github.com/braintrustdata/braintrust-sdk-go/trace/contrib/weaviate"
+)
+
+var tracer = otel.Tracer("weaviate-examples")
+
+const className = "Article"
+
+func main() {
+	tp := trace.NewTracerProvider()
+	defer tp.Shutdown(context.Background()) //nolint:errcheck
+	otel.SetTracerProvider(tp)
+
+	bt, err := braintrust.New(tp,
+		braintrust.WithProject("go-sdk-examples"),
+		braintrust.WithBlockingLogin(true),
+	)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	client, err := weaviate.NewClient(weaviate.Config{
+		Host:             "localhost:8080",
+		Scheme:           "http",
+		ConnectionClient: tracewaeviate.WrapClient(nil),
+		Headers:          map[string]string{"X-OpenAI-Api-Key": os.Getenv("OPENAI_API_KEY")},
+	})
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	if err := seedArticle(client); err != nil {
+		log.Fatal(err)
+	}
+
+	ctx, rootSpan := tracer.Start(context.Background(), "examples/internal/weaviate/main.go")
+	defer rootSpan.End()
+
+	nearVector := client.GraphQL().NearVectorArgBuilder().WithVector([]float32{0.1, 0.2, 0.3, 0.4, 0.5})
+	fields := []graphql.Field{{Name: "title"}, {Name: "content"}}
+
+	singleResultGS := graphql.NewGenerativeSearch().SingleResult("Summarize this in one sentence: {content}")
+	resp, err := client.GraphQL().Get().
+		WithClassName(className).
+		WithFields(fields...).
+		WithNearVector(nearVector).
+		WithGenerativeSearch(singleResultGS).
+		Do(ctx)
+	if err != nil {
+		log.Fatalf("Generative search (single result): %v", err)
+	}
+	fmt.Printf("Generative search (single result) -> %+v\n", resp.Data)
+
+	groupedResultGS := graphql.NewGenerativeSearch().GroupedResult("Write a one-sentence tweet about this.")
+	resp, err = client.GraphQL().Get().
+		WithClassName(className).
+		WithFields(fields...).
+		WithNearVector(nearVector).
+		WithGenerativeSearch(groupedResultGS).
+		Do(ctx)
+	if err != nil {
+		log.Fatalf("Generative search (grouped result): %v", err)
+	}
+	fmt.Printf("Generative search (grouped result) -> %+v\n", resp.Data)
+
+	fmt.Printf("View trace: %s\n", bt.Permalink(rootSpan))
+}
+
+// seedArticle creates the Article class and one object if they don't
+// already exist, so the example is runnable against a fresh Weaviate
+// instance without a separate setup step.
+func seedArticle(client *weaviate.Client) error {
+	ctx := context.Background()
+
+	exists, err := client.Schema().ClassExistenceChecker().WithClassName(className).Do(ctx)
+	if err != nil {
+		return err
+	}
+	if exists {
+		return nil
+	}
+
+	if err := client.Schema().ClassCreator().WithClass(&models.Class{
+		Class:      className,
+		Vectorizer: "none",
+		Properties: []*models.Property{
+			{Name: "title", DataType: []string{"text"}},
+			{Name: "content", DataType: []string{"text"}},
+		},
+	}).Do(ctx); err != nil {
+		return err
+	}
+
+	_, err = client.Data().Creator().
+		WithClassName(className).
+		WithProperties(map[string]any{
+			"title":   "The Blue Whale",
+			"content": "The blue whale is the largest animal known to have ever existed. It can grow up to 30 meters long and weigh up to 200 tons. It feeds primarily on krill.",
+		}).
+		WithVector([]float32{0.1, 0.2, 0.3, 0.4, 0.5}).
+		Do(ctx)
+	return err
+}

go.work

@@ -1,4 +1,4 @@
-go 1.25.0
+go 1.26
 
 toolchain go1.26.1
 
@@ -17,4 +17,5 @@ use (
 	./trace/contrib/github.com/sashabaranov/go-openai
 	./trace/contrib/langchaingo
 	./trace/contrib/openai
+	./trace/contrib/weaviate
 )