feat: implement multi provider

.release-please-manifest.json

@@ -2,10 +2,10 @@
     "hooks/open-telemetry": "0.3.4",
     "hooks/validator": "0.1.6",
     "providers/configcat": "0.2.1",
-    "providers/flagd": "0.2.5",
+    "providers/flagd": "0.2.6",
     "providers/flipt": "0.1.3",
     "providers/from-env": "0.1.5",
-    "providers/go-feature-flag": "0.2.3",
+    "providers/go-feature-flag": "0.2.4",
     "providers/gcp": "0.0.1",
     "providers/flagsmith": "0.1.4",
     "providers/launchdarkly": "0.1.5",
@@ -15,5 +15,6 @@
     "providers/ofrep": "0.1.5",
     "providers/prefab": "0.0.2",
     "tests/flagd": "1.4.1",
-    "providers/go-feature-flag-in-process": "0.1.0"
+    "providers/go-feature-flag-in-process": "0.1.0",
+    "providers/multi-provider": "0.0.2"
 }

providers/flagd/CHANGELOG.md

@@ -1,5 +1,22 @@
 # Changelog
 
+## [0.2.6](https://github.com/open-feature/go-sdk-contrib/compare/providers/flagd/v0.2.5...providers/flagd/v0.2.6) (2025-02-22)
+
+
+### 🐛 Bug Fixes
+
+* **flagd:** Fixed possible nil pointer exception with svcMetadata in service.go ([#634](https://github.com/open-feature/go-sdk-contrib/issues/634)) ([50256e9](https://github.com/open-feature/go-sdk-contrib/commit/50256e9af89201ca09f3989161afd5a069d3a06e))
+
+
+### ✨ New Features
+
+* **flagd:** Added WithGrpcDialOptionsOverride provider option ([#638](https://github.com/open-feature/go-sdk-contrib/issues/638)) ([fe904bb](https://github.com/open-feature/go-sdk-contrib/commit/fe904bb054be86ca8e1cafa8577e8ac152dfefc8))
+
+
+### 🧹 Chore
+
+* **flagd:** Updates flagd core to v0.11.2 ([#636](https://github.com/open-feature/go-sdk-contrib/issues/636)) ([99d1a0c](https://github.com/open-feature/go-sdk-contrib/commit/99d1a0c9d206102774c8a83b2f40e2a33b29309f))
+
 ## [0.2.5](https://github.com/open-feature/go-sdk-contrib/compare/providers/flagd/v0.2.4...providers/flagd/v0.2.5) (2025-02-18)
 
 

providers/flagd/README.md

@@ -144,6 +144,27 @@ openfeature.SetProvider(flagd.NewProvider(
     ))
 ```
 
+### gRPC DialOptions override
+
+The `GrpcDialOptionsOverride` is meant for connection of the in-process resolver to a Sync API implementation on a host/port,
+that might require special credentials or headers.
+
+```go
+creds := customSync.CreateCredentials(...)
+
+dialOptions := []grpc.DialOption{
+        grpc.WithTransportCredentials(creds.TransportCredentials()),
+        grpc.WithPerRPCCredentials(creds.PerRPCCredentials()),
+        grpc.WithAuthority(...),
+    }
+
+openfeature.SetProvider(flagd.NewProvider(
+        flagd.WithInProcessResolver(),
+        flagd.WithHost("example.com/flagdSyncApi"), flagd.WithPort(443),
+        flagd.WithGrpcDialOptionsOverride(dialOptions),
+    ))
+```
+
 ## Supported Events
 
 The flagd provider emits `PROVIDER_READY`, `PROVIDER_ERROR` and `PROVIDER_CONFIGURATION_CHANGED` events.

providers/flagd/go.mod

@@ -7,47 +7,39 @@ toolchain go1.23.6
 require (
 	buf.build/gen/go/open-feature/flagd/connectrpc/go v1.17.0-20240906125204-0a6a901b42e8.1
 	buf.build/gen/go/open-feature/flagd/grpc/go v1.5.1-20250127221518-be6d1143b690.2
-	buf.build/gen/go/open-feature/flagd/protocolbuffers/go v1.36.4-20250127221518-be6d1143b690.1
+	buf.build/gen/go/open-feature/flagd/protocolbuffers/go v1.36.5-20250127221518-be6d1143b690.1
 	connectrpc.com/connect v1.18.1
 	connectrpc.com/otelconnect v0.7.1
 	github.com/cucumber/godog v0.15.0
 	github.com/go-logr/logr v1.4.2
 	github.com/google/go-cmp v0.6.0
 	github.com/hashicorp/golang-lru/v2 v2.0.7
-	github.com/open-feature/flagd/core v0.11.1
+	github.com/open-feature/flagd/core v0.11.2
 	github.com/open-feature/go-sdk v1.11.0
 	github.com/open-feature/go-sdk-contrib/tests/flagd v1.4.1
 	go.uber.org/mock v0.5.0
-	golang.org/x/exp v0.0.0-20250128182459-e0ece0dbea4c
+	go.uber.org/zap v1.27.0
+	golang.org/x/exp v0.0.0-20250210185358-939b2ce775ac
 	golang.org/x/net v0.34.0
 	google.golang.org/grpc v1.70.0
-	google.golang.org/protobuf v1.36.4
-	sigs.k8s.io/controller-runtime v0.19.0
+	google.golang.org/protobuf v1.36.5
 )
 
 require (
 	github.com/barkimedes/go-deepcopy v0.0.0-20220514131651-17c30cfc62df // indirect
 	github.com/cucumber/gherkin/go/v26 v26.2.0 // indirect
 	github.com/cucumber/messages/go/v21 v21.0.1 // indirect
-	github.com/diegoholiveira/jsonlogic/v3 v3.7.3 // indirect
+	github.com/diegoholiveira/jsonlogic/v3 v3.7.4 // indirect
 	github.com/fsnotify/fsnotify v1.8.0 // indirect
-	github.com/fxamacker/cbor/v2 v2.7.0 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
-	github.com/go-logr/zapr v1.3.0 // indirect
 	github.com/gofrs/uuid v4.3.1+incompatible // indirect
-	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/google/gofuzz v1.2.0 // indirect
 	github.com/hashicorp/go-immutable-radix v1.3.1 // indirect
 	github.com/hashicorp/go-memdb v1.3.4 // indirect
 	github.com/hashicorp/golang-lru v0.5.4 // indirect
-	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/open-feature/flagd-schemas v0.2.9-0.20250127221449-bb763438abc5 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/twmb/murmur3 v1.1.8 // indirect
-	github.com/x448/float16 v0.8.4 // indirect
 	github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect
 	github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
 	github.com/xeipuuv/gojsonschema v1.2.0 // indirect
@@ -57,17 +49,9 @@ require (
 	go.opentelemetry.io/otel/metric v1.34.0 // indirect
 	go.opentelemetry.io/otel/trace v1.34.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	go.uber.org/zap v1.27.0 // indirect
-	golang.org/x/mod v0.22.0 // indirect
-	golang.org/x/sys v0.29.0 // indirect
-	golang.org/x/text v0.21.0 // indirect
+	golang.org/x/mod v0.23.0 // indirect
+	golang.org/x/sys v0.30.0 // indirect
+	golang.org/x/text v0.22.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20250115164207-1a7da9e5054f // indirect
-	gopkg.in/inf.v0 v0.9.1 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	k8s.io/apimachinery v0.31.4 // indirect
-	k8s.io/klog/v2 v2.130.1 // indirect
-	k8s.io/utils v0.0.0-20240711033017-18e509b52bc8 // indirect
-	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
-	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
 )