New news in Dubbo: Research on the application of Go language in Dubbo ecosystem

Dubbo’s latest news: Research on the application of Go language in Dubbo ecosystem

In recent years, with the rise of microservice architecture, Dubbo, as an open source high-performance The RPC framework has been widely used and promoted at home and abroad. In the Dubbo ecosystem, Java has always been the main development language, but with the rise of the Go language in the cloud native field, more and more developers are beginning to try to combine the Go language with Dubbo in order to obtain better results. Effect. This article will deeply explore the application of Go language in the Dubbo ecosystem and demonstrate it with specific code examples.

1. Combination of Dubbo and Go language

Dubbo is a high-performance RPC framework based on Java. Its core idea is to split different modules of the application into multiple independent services. , and implement communication between modules through RPC remote calls. As an efficient, concise and highly concurrency programming language, the Go language is very consistent with the microservice concept. Therefore, introducing the Go language into the Dubbo ecosystem can bring developers a faster and more efficient development experience.

2. Implementation of Dubbo client in Go language

The following is a simple example to show how to implement Dubbo client call in Go language:

package main

import (
    "context"
    "fmt"
    "github.com/apache/dubbo-go/common/logger"
    "github.com/apache/dubbo-go/config"
    "github.com/apache/dubbo-go/protocol/dubbo"
)

type Greeter struct{}

func (g Greeter) SayHello(name string) interface{} {
    return "Hello, " + name
}

func main() {
    config.SetConsumerService(Greeter{})
    rootConfig := &config.ConsumerConfig{
        ApplicationConfig: &config.ApplicationConfig{
            AppName: "godubbo",
        },
        ReferenceConfig: &config.ReferenceConfig{
            InterfaceName: "com.test.Greeter",
        },
    }
    referenceConfig, err := config.NewReferenceConfig(rootConfig)
    if err != nil {
        logger.Errorf("new reference config error %v", err)
    }
    var (
        resp *dubbo.RPCResult
        called = make(chan interface{})
    )
    err = referenceConfig.GetDefaultReference().Call(context.Background(), "SayHello", []interface{}{"Tom"}, &resp, called)
    if err != nil {
        logger.Errorf("error: %v", err)
    }
    fmt.Printf("Result: %v
", <-called)
}

In the above code, A simple Greeter service is defined, and then the relevant information of the consumer is configured, and finally called through dubbo.RPCResult, thus realizing the function of calling Dubbo service in Go language.

3. Implementation of Dubbo server in Go language

Next, we use an example to show how to implement Dubbo server code in Go language:

package main

import (
    "fmt"
    "github.com/apache/dubbo-go/common/logger"
    "github.com/apache/dubbo-go/config"
    "github.com/apache/dubbo-go/protocol/dubbo"
    "net/http"
)

type Greeter struct{}

func (g Greeter) SayHello(name string) interface{} {
    return "Hello, " + name
}

func main() {
    config.SetProviderService(Greeter{})
    rootConfig := config.NewRootConfigBuilder().
        RegistryProtocol("zookeeper").
        Address("127.0.0.1:2181").
        Protocol("dubbo").
        Services("com.test.Greeter").
        Build()
    providerConfig, err := config.NewProviderConfig(rootConfig)
    if err != nil {
        logger.Errorf("new provider config error: %v", err)
    }
    err = providerConfig.Init()
    if err != nil {
        logger.Errorf("provider init error: %v", err)
    }
    http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
        w.Write([]byte("Hello, Dubbo Go!"))
    })
    logger.Infof("dubbo service start")
    http.ListenAndServe(":8080", nil)
}

In the above code , defined a Greeter service, then configured the relevant information of the service provider, and listened to the port through http.HandleFunc, thus realizing the function of implementing the Dubbo server in the Go language.

Conclusion:

Through the above examples, we can see that in the Go language, through the support of the Dubbo framework, convenient and efficient provision and consumption of Dubbo services can be achieved. The combination of the efficient concurrency features of the Go language and the high-performance RPC calls of the Dubbo framework can not only meet development needs, but also improve application performance and stability. I hope that through the introduction of this article, readers will have a deeper understanding of the application of Go language in the Dubbo ecosystem, and can also apply it in actual development.

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