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main.go
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main.go
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package main
import (
"context"
"io/ioutil"
"log"
"math"
"mathOp_service/service"
"net"
"google.golang.org/grpc"
"google.golang.org/grpc/reflection"
"gopkg.in/yaml.v2"
)
type server struct{}
type conf struct {
Port string `yaml:"port"`
}
func main() {
var c conf
c.getConf()
listener, err := net.Listen("tcp", c.Port)
if err != nil {
log.Fatalf("failed to listen: %v", err)
}
srv := grpc.NewServer()
service.RegisterMathOpServiceServer(srv, &server{})
reflection.Register(srv)
log.Println("Running on port:", c.Port)
if e := srv.Serve(listener); e != nil {
log.Fatalf("failed to serve: %v", e)
}
}
func (c *conf) getConf() *conf {
yamlFile, err := ioutil.ReadFile("./config/config.yaml")
if err != nil {
log.Printf("yamlFile.Get err #%v ", err)
}
err = yaml.Unmarshal(yamlFile, c)
if err != nil {
log.Fatalf("Unmarshal: %v", err)
}
return c
}
func (s *server) Add(ctx context.Context, request *service.AddRequest) (*service.AddResponse, error) {
log.Println("Addition request received: ", request)
a, b := request.GetX(), request.GetY()
result := a + b
log.Println("Addition request response:", result)
return &service.AddResponse{Answer: result}, nil
}
func (s *server) Sqrt(ctx context.Context, request *service.SqrtRequest) (*service.SqrtResponse, error) {
log.Println("Sqrt request received: ", request)
a := request.GetX()
result := math.Sqrt(a)
log.Println("Sqrt request response:", result)
return &service.SqrtResponse{Answer: result}, nil
}