github.com/micro/go-micro/examples@v0.0.0-20210105173217-bf4ab679e18b/client/codegen/codegen.go (about)

     1  package main
     2  
     3  import (
     4  	"fmt"
     5  
     6  	"context"
     7  	example "github.com/micro/go-micro/examples/server/proto/example"
     8  	"github.com/micro/go-micro/v2/config/cmd"
     9  )
    10  
    11  var (
    12  	cl = example.NewExampleService("go.micro.srv.example", nil)
    13  )
    14  
    15  func call(i int) {
    16  	rsp, err := cl.Call(context.Background(), &example.Request{Name: "John"})
    17  	if err != nil {
    18  		fmt.Println("call err: ", err, rsp)
    19  		return
    20  	}
    21  	fmt.Println("Call:", i, "rsp:", rsp.Msg)
    22  }
    23  
    24  func stream(i int) {
    25  	stream, err := cl.Stream(context.Background(), &example.StreamingRequest{Count: int64(i)})
    26  	if err != nil {
    27  		fmt.Println("err:", err)
    28  		return
    29  	}
    30  	for j := 0; j < i; j++ {
    31  		rsp, err := stream.Recv()
    32  		if err != nil {
    33  			fmt.Println("err:", err)
    34  			break
    35  		}
    36  		fmt.Println("Stream: rsp:", rsp.Count)
    37  	}
    38  	if err := stream.Close(); err != nil {
    39  		fmt.Println("stream close err:", err)
    40  	}
    41  }
    42  
    43  func pingPong(i int) {
    44  	stream, err := cl.PingPong(context.Background())
    45  	if err != nil {
    46  		fmt.Println("err:", err)
    47  		return
    48  	}
    49  	for j := 0; j < i; j++ {
    50  		if err := stream.Send(&example.Ping{Stroke: int64(j)}); err != nil {
    51  			fmt.Println("err:", err)
    52  			return
    53  		}
    54  		rsp, err := stream.Recv()
    55  		if err != nil {
    56  			fmt.Println("recv err", err)
    57  			break
    58  		}
    59  		fmt.Printf("Sent ping %v got pong %v\n", j, rsp.Stroke)
    60  	}
    61  	if err := stream.Close(); err != nil {
    62  		fmt.Println("stream close err:", err)
    63  	}
    64  }
    65  
    66  func main() {
    67  	cmd.Init()
    68  
    69  	fmt.Println("\n--- Call example ---")
    70  	for i := 0; i < 10; i++ {
    71  		call(i)
    72  	}
    73  
    74  	fmt.Println("\n--- Streamer example ---")
    75  	stream(10)
    76  
    77  	fmt.Println("\n--- Ping Pong example ---")
    78  	pingPong(10)
    79  }