go-kratos 学习笔记(2) 创建api

proto 声明SayHi

先删除go.mod 从新初始化一下

go mod init xgs_kratosgo mod tidy

编辑 api/helloword/v1/greeter.proto 新声明一个方法

rpc SayHi (HelloHiRequest) returns (HelloHiReply) {option (google.api.http) = {post: "/hi"body: "*"};}

post请求的话 body必须写，定义好之后

#执行
make api#在执行
make generate

编辑service层

package serviceimport ("context"v1 "xgs_kratos/api/helloworld/v1""xgs_kratos/internal/biz"
)// GreeterService is a greeter service.
type GreeterService struct {v1.UnimplementedGreeterServeruc *biz.GreeterUsecase
}// NewGreeterService new a greeter service.
func NewGreeterService(uc *biz.GreeterUsecase) *GreeterService {return &GreeterService{uc: uc}
}// SayHello implements helloworld.GreeterServer.
func (s *GreeterService) SayHello(ctx context.Context, in *v1.HelloRequest) (*v1.HelloReply, error) {g, err := s.uc.CreateGreeter(ctx, &biz.Greeter{Hello: in.Name})if err != nil {return nil, err}return &v1.HelloReply{Message: "Hello " + g.Hello}, nil
}// SayHi implements helloworld.GreeterServer.
func (s *GreeterService) SayHi(ctx context.Context, in *v1.HelloHiRequest) (*v1.HelloHiReply, error) {g, err := s.uc.CreateGreeter(ctx, &biz.Greeter{Hello: in.Name})if err != nil {return nil, err}return &v1.HelloHiReply{Message: "Hello " + g.Hello}, nil
}

运行 kratos run

postman请求的结果如下