/
server.go
53 lines (40 loc) · 1 KB
/
server.go
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package rpchandlers
import (
"net"
pb "github.com/BarSquad/lgbtqoin/src/rpchandlers/proto"
"golang.org/x/net/context"
"google.golang.org/grpc"
"google.golang.org/grpc/grpclog"
)
func main() {
listener, err := net.Listen("tcp", ":5300")
if err != nil {
grpclog.Fatalf("failed to listen: %v", err)
}
var opts []grpc.ServerOption
grpcServer := grpc.NewServer(opts...)
pb.RegisterReverseServer(grpcServer, &RPCServer{})
grpcServer.Serve(listener)
}
type RPCServer struct {
pb.UnimplementedReverseServer
}
func (s *RPCServer) Do(c context.Context, request *pb.Request) (response *pb.Response, err error) {
n := 0
// Сreate an array of runes to safely reverse a string.
runes := make([]rune, len(request.Message))
for _, r := range request.Message {
runes[n] = r
n++
}
// Reverse using runes.
runes = runes[0:n]
for i := 0; i < n/2; i++ {
runes[i], runes[n-1-i] = runes[n-1-i], runes[i]
}
output := string(runes)
response = &pb.Response{
Message: output,
}
return response, nil
}