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server.go
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server.go
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package message
import (
"context"
"log"
"math/big"
"net"
"github.com/PositionExchange/posichain/internal/utils"
"google.golang.org/grpc"
)
// Constants for client service port.
const (
IP = "127.0.0.1"
Port = "30000"
)
// Server is the Server struct for client service package.
type Server struct {
UnimplementedClientServiceServer
server *grpc.Server
CreateTransactionForEnterMethod func(int64, string) error
GetResult func(string) ([]string, []*big.Int)
CreateTransactionForPickWinner func() error
}
// Process processes the Message and returns Response
func (s *Server) Process(ctx context.Context, message *Message) (*Response, error) {
return &Response{}, nil
}
// Start starts the Server on given ip and port.
func (s *Server) Start() (*grpc.Server, error) {
addr := net.JoinHostPort(IP, Port)
lis, err := net.Listen("tcp4", addr)
if err != nil {
log.Fatalf("failed to listen: %v", err)
}
s.server = grpc.NewServer()
RegisterClientServiceServer(s.server, s)
go func() {
if err := s.server.Serve(lis); err != nil {
utils.Logger().Warn().Err(err).Msg("server.Serve() failed")
}
}()
return s.server, nil
}
// Stop stops the server.
func (s *Server) Stop() {
s.server.Stop()
}
// NewServer creates new Server which implements ClientServiceServer interface.
func NewServer(
CreateTransactionForEnterMethod func(int64, string) error,
GetResult func(string) ([]string, []*big.Int),
CreateTransactionForPickWinner func() error) *Server {
return &Server{
CreateTransactionForEnterMethod: CreateTransactionForEnterMethod,
CreateTransactionForPickWinner: CreateTransactionForPickWinner,
GetResult: GetResult,
}
}