grpc/interceptors/iface/interceptors.go

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package iface
import (
"context"
"google.golang.org/grpc"
"go.linka.cloud/grpc-toolkit/interceptors"
)
type UnaryInterceptor interface {
UnaryServerInterceptor() grpc.UnaryServerInterceptor
}
type StreamInterceptor interface {
StreamServerInterceptor() grpc.StreamServerInterceptor
}
type iface struct{}
func New() interceptors.ServerInterceptors {
return &iface{}
}
func (s iface) UnaryServerInterceptor() grpc.UnaryServerInterceptor {
return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (resp interface{}, err error) {
if i, ok := info.Server.(UnaryInterceptor); ok {
return i.UnaryServerInterceptor()(ctx, req, info, handler)
}
return handler(ctx, req)
}
}
func (s iface) StreamServerInterceptor() grpc.StreamServerInterceptor {
return func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
if i, ok := srv.(StreamInterceptor); ok {
return i.StreamServerInterceptor()(srv, ss, info, handler)
}
return handler(srv, ss)
}
}