-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
feat: Add statsig interceptor package
- Loading branch information
Showing
1 changed file
with
80 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,80 @@ | ||
package interceptors | ||
|
||
import ( | ||
"context" | ||
|
||
grpcmiddleware "github.com/grpc-ecosystem/go-grpc-middleware" | ||
"google.golang.org/grpc" | ||
|
||
sdkstatsigcontext "github.com/scribd/go-sdk/pkg/context/statsig" | ||
"github.com/scribd/go-sdk/pkg/statsig" | ||
) | ||
|
||
// ExperimentUnaryServerInterceptor returns a unary server interceptor | ||
// that adds sdkstatsigcontext.GetExperimentFunc to the context. | ||
func ExperimentUnaryServerInterceptor(experiment string) grpc.UnaryServerInterceptor { | ||
return func( | ||
ctx context.Context, | ||
req interface{}, | ||
info *grpc.UnaryServerInfo, | ||
handler grpc.UnaryHandler, | ||
) (interface{}, error) { | ||
x := statsig.GetExperiment(experiment) | ||
newCtx := sdkstatsigcontext.ExperimentToContext(ctx, x) | ||
return handler(newCtx, req) | ||
} | ||
} | ||
|
||
// ExperimentStreamServerInterceptor returns a streaming server interceptor | ||
// that sdkstatsigcontext.GetExperimentFunc to the context. | ||
func ExperimentStreamServerInterceptor(experiment string) grpc.StreamServerInterceptor { | ||
return func( | ||
srv interface{}, | ||
stream grpc.ServerStream, | ||
info *grpc.StreamServerInfo, | ||
handler grpc.StreamHandler, | ||
) error { | ||
x := statsig.GetExperiment(experiment) | ||
newCtx := sdkstatsigcontext.ExperimentToContext(stream.Context(), x) | ||
|
||
wrapped := grpcmiddleware.WrapServerStream(stream) | ||
wrapped.WrappedContext = newCtx | ||
|
||
return handler(srv, wrapped) | ||
} | ||
} | ||
|
||
// FeatureFlagUnaryServerInterceptor returns a unary server interceptor | ||
// that adds sdkstatsigcontext.GetFeatureFlagFunc to the context. | ||
func FeatureFlagUnaryServerInterceptor(featureFlag string) grpc.UnaryServerInterceptor { | ||
return func( | ||
ctx context.Context, | ||
req interface{}, | ||
info *grpc.UnaryServerInfo, | ||
handler grpc.UnaryHandler, | ||
) (interface{}, error) { | ||
ff := statsig.GetFeatureFlag(featureFlag) | ||
newCtx := sdkstatsigcontext.FeatureFlagToContext(ctx, ff) | ||
|
||
return handler(newCtx, req) | ||
} | ||
} | ||
|
||
// FeatureFlagStreamServerInterceptor returns a streaming server interceptor | ||
// that sdkstatsigcontext.GetFeatureFlagFunc to the context. | ||
func FeatureFlagStreamServerInterceptor(featureFlag string) grpc.StreamServerInterceptor { | ||
return func( | ||
srv interface{}, | ||
stream grpc.ServerStream, | ||
info *grpc.StreamServerInfo, | ||
handler grpc.StreamHandler, | ||
) error { | ||
ff := statsig.GetFeatureFlag(featureFlag) | ||
newCtx := sdkstatsigcontext.FeatureFlagToContext(stream.Context(), ff) | ||
|
||
wrapped := grpcmiddleware.WrapServerStream(stream) | ||
wrapped.WrappedContext = newCtx | ||
|
||
return handler(srv, wrapped) | ||
} | ||
} |