fix(flipt): use default value from Flipt variant flag when available (#690)

Signed-off-by: Roman Dmytrenko <[email protected]>
Co-authored-by: Sahid Velji <[email protected]>
Co-authored-by: Michael Beemer <[email protected]>

Author: 3 people

providers/flipt/README.md

@@ -34,12 +34,15 @@ import (
 
 func main() {
     // http://localhost:8080 is the default Flipt address
-    openfeature.SetProvider(flipt.NewProvider())
+    err := openfeature.SetProviderAndWait(flipt.NewProvider())
+    if err != nil {
+      panic(err)
+    }
 
     client := openfeature.NewClient("my-app")
     value, err := client.BooleanValue(context.Background(), "v2_enabled", false, openfeature.NewEvaluationContext(
         "[email protected]",
-        map[string]interface{}{
+        map[string]any{
             "favorite_color": "blue",
         },
     ))

providers/flipt/go.mod

@@ -1,38 +1,35 @@
 module github.com/open-feature/go-sdk-contrib/providers/flipt
 
-go 1.22
+go 1.23.0
 
 require (
-	github.com/open-feature/go-sdk v1.13.1
-	github.com/stretchr/testify v1.9.0
-	go.flipt.io/flipt/rpc/flipt v1.45.0
-	go.flipt.io/flipt/sdk/go v0.12.0
+	github.com/open-feature/go-sdk v1.15.0
+	github.com/stretchr/testify v1.10.0
+	go.flipt.io/flipt/rpc/flipt v1.54.0
+	go.flipt.io/flipt/sdk/go v0.13.0
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.56.0
-	google.golang.org/grpc v1.67.1
-	google.golang.org/protobuf v1.35.1
+	google.golang.org/grpc v1.69.2
+	google.golang.org/protobuf v1.36.1
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
-	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
-	github.com/golang/protobuf v1.5.4 // indirect
-	github.com/grpc-ecosystem/grpc-gateway v1.16.0 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 // indirect
+	github.com/google/gnostic-models v0.6.9 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.25.1 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/stretchr/objx v0.5.2 // indirect
 	go.flipt.io/flipt/errors v1.45.0 // indirect
-	go.opentelemetry.io/otel v1.31.0 // indirect
-	go.opentelemetry.io/otel/metric v1.31.0 // indirect
-	go.opentelemetry.io/otel/trace v1.31.0 // indirect
-	go.uber.org/multierr v1.11.0 // indirect
-	go.uber.org/zap v1.27.0 // indirect
-	golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842 // indirect
-	golang.org/x/net v0.30.0 // indirect
-	golang.org/x/sys v0.26.0 // indirect
-	golang.org/x/text v0.19.0 // indirect
-	google.golang.org/genproto v0.0.0-20240401170217-c3f982113cda // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20240814211410-ddb44dafa142 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20241007155032-5fefd90f89a9 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/otel v1.33.0 // indirect
+	go.opentelemetry.io/otel/metric v1.33.0 // indirect
+	go.opentelemetry.io/otel/trace v1.33.0 // indirect
+	go.uber.org/mock v0.5.2 // indirect
+	golang.org/x/net v0.33.0 // indirect
+	golang.org/x/sys v0.28.0 // indirect
+	golang.org/x/text v0.25.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20241230172942-26aa7a208def // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20241230172942-26aa7a208def // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

providers/flipt/go.sum

@@ -8,17 +8,19 @@ import (
 )
 
 func Example() {
-	openfeature.SetProvider(flipt.NewProvider(
+	err := openfeature.SetProviderAndWait(flipt.NewProvider(
 		flipt.WithAddress("localhost:9000"),
 	))
+	if err != nil {
+		panic(err)
+	}
 
 	client := openfeature.NewClient("my-app")
 	value, err := client.BooleanValue(
-		context.Background(), "v2_enabled", false, openfeature.NewEvaluationContext("[email protected]", map[string]interface{}{
+		context.TODO(), "v2_enabled", false, openfeature.NewEvaluationContext("[email protected]", map[string]any{
 			"favorite_color": "blue",
 		}),
 	)
-
 	if err != nil {
 		panic(err)
 	}