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readonly.go
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/
readonly.go
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package readonly
import (
"context"
middleware "github.com/grpc-ecosystem/go-grpc-middleware/v2"
"google.golang.org/grpc"
"github.com/authzed/spicedb/internal/datastore/proxy"
datastoremw "github.com/authzed/spicedb/internal/middleware/datastore"
)
// UnaryServerInterceptor returns a new unary server interceptor that sets the datastore to readonly
func UnaryServerInterceptor() grpc.UnaryServerInterceptor {
return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
if err := datastoremw.SetInContext(ctx, proxy.NewReadonlyDatastore(datastoremw.MustFromContext(ctx))); err != nil {
return nil, err
}
return handler(ctx, req)
}
}
// StreamServerInterceptor returns a new stream server interceptor that sets the datastore to readonly
func StreamServerInterceptor() grpc.StreamServerInterceptor {
return func(srv interface{}, stream grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
wrapped := middleware.WrapServerStream(stream)
if err := datastoremw.SetInContext(wrapped.WrappedContext, proxy.NewReadonlyDatastore(datastoremw.MustFromContext(stream.Context()))); err != nil {
return err
}
return handler(srv, wrapped)
}
}