Go language RPC framework inventory: List of five popular choices

With the development of Internet technology, the application of distributed systems is becoming more and more widespread, and remote procedure call (RPC), as an important communication method in distributed systems, has also been increasingly popular. attract more and more attention and applications. Among the many RPC frameworks, Go language, as a fast and efficient programming language, also has a rich selection of RPC frameworks. This article will take stock of the Go language RPC framework, introduce the five popular choices, and give specific code examples to help readers better understand and choose the RPC framework suitable for their own projects.

1. gRPC

gRPC is a high-performance, open source RPC framework developed by Google, based on the HTTP/2 protocol and Protocol Buffers (ProtoBuf) serialization protocol. gRPC provides powerful features such as cross-language support, authentication, load balancing, etc. The following is a simple gRPC server and client example:

Server code example:

package main

import (
    "context"
    "log"
    "net"

    "google.golang.org/grpc"
    pb "path/to/your/proto/package"
)

type server struct{}

func (s *server) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloResponse, error) {
    return &pb.HelloResponse{Message: "Hello " + in.Name}, nil
}

func main() {
    lis, err := net.Listen("tcp", ":50051")
    if err != nil {
        log.Fatalf("failed to listen: %v", err)
    }

    s := grpc.NewServer()
    pb.RegisterGreeterServer(s, &server{})
    if err := s.Serve(lis); err != nil {
        log.Fatalf("failed to serve: %v", err)
    }
}

Client code example:

package main

import (
    "context"
    "log"
    "os"
    "time"

    "google.golang.org/grpc"
    pb "path/to/your/proto/package"
)

func main() {
    conn, err := grpc.Dial("localhost:50051", grpc.WithInsecure())
    if err != nil {
        log.Fatalf("did not connect: %v", err)
    }
    defer conn.Close()
    c := pb.NewGreeterClient(conn)

    name := "World"
    ctx, cancel := context.WithTimeout(context.Background(), time.Second)
    defer cancel()
    r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})
    if err != nil {
        log.Fatalf("could not greet: %v", err)
    }
    log.Printf("Greeting: %s", r.Message)
}

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