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# Apache Dubbo for Golang [![CI](https://github.com/apache/dubbo-go/workflows/CI/badge.svg)](https://github.com/apache/dubbo-go/actions) [![go.dev reference](https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/github.com/apache/dubbo-go/v3?tab=doc) [![Go Report Card](https://goreportcard.com/badge/github.com/apache/dubbo-go)](https://goreportcard.com/report/github.com/apache/dubbo-go) ![license](https://img.shields.io/badge/license-Apache--2.0-green.svg) --- English | [中文](README_CN.md) Apache Dubbo-go is a high-performance RPC and microservice framework compatible with other Dubbo language implementations. It leverages Golang's concurrency features to provide efficient service governance, including service discovery, load balancing, and traffic management. Dubbo-go supports multiple protocols, such as Dubbo, JSONRPC, Triple(gRPC-compatible), gRPC, HTTP, HTTP2, and HTTP/3 (experimental), ensuring seamless integration in heterogeneous environments. You can visit [the official website](https://dubbo.apache.org/) for more information. ## Recent Updates For detailed changes, refer to [CHANGELOG.md](CHANGELOG.md). - **[3.3.2](https://github.com/apache/dubbo-go/releases/tag/v3.3.2)**: **Upgrade note:** Go 1.25 or later is required. The legacy `config` package has been removed; applications that imported it directly must migrate to the instance/options APIs and configuration types under `global`. See the [3.3.2 changelog](CHANGELOG.md#332) and [dubbo-go-samples](https://github.com/apache/dubbo-go-samples) for migration details and current usage. Apache Dubbo-go 3.3.2 is a production-readiness release focused on API consolidation, Triple protocol capabilities, application-level metadata, service governance, concurrency safety, and release tooling. It completes the removal of the legacy config package, expands generic invocation and HTTP-facing Triple features, refreshes generated-project workflows, and fixes multiple races, stale-snapshot issues, and resource leaks. - **3.3.1**: Optimized configuration hot-reloading with content-based caching to prevent redundant notifications. Added experimental HTTP/3 support, Apollo integration, and Triple protocol OpenAPI generation. Fixed critical race conditions in service discovery under high-concurrency. - **3.3.0**: Introduced script routing, multi-destination conditional routing, Triple protocol keepalive and connection pooling, Nacos multi-category subscriptions, and enhancements for observability and interoperability. ## Getting started ### Prerequisites - Go 1.25 or later. ### Installation To install Dubbo-go, use the following command: ```Bash go get dubbo.apache.org/dubbo-go/v3@latest ``` ### Quick Example You can learn how to develop a dubbo-go RPC application step by step in 5 minutes by following our [Quick Start](https://github.com/apache/dubbo-go-samples/tree/main/helloworld) demo. It's as simple as the code shown below, you define a service with Protobuf, provide your own service implementation, register it to a server, and start the server. ```go func (srv *GreetTripleServer) Greet(ctx context.Context, req *greet.GreetRequest) (*greet.GreetResponse, error) { resp := &greet.GreetResponse{Greeting: req.Name} return resp, nil } func main() { srv, _ := server.NewServer( server.WithServerProtocol( protocol.WithPort(20000), protocol.WithTriple(), ), ) _ := greet.RegisterGreetServiceHandler(srv, &GreetTripleServer{}) if err := srv.Serve(); err != nil { logger.Error(err) } } ``` After the server is up and running, call your service via cURL: ```shell curl \ --header "Content-Type: application/json" \ --data '{"name": "Dubbo"}' \ http://localhost:20000/greet.GreetService/Greet ``` Or, you can start a standard dubbo-go client to call the service: ```go func main() { cli, _ := client.NewClient( client.WithClientURL("127.0.0.1:20000"), ) svc, _ := greet.NewGreetService(cli) resp, _ := svc.Greet(context.Background(), &greet.GreetRequest{Name: "hello world"}) logger.Infof("Greet response: %s", resp.Greeting) } ``` See the [samples](https://github.com/apache/dubbo-go-samples) for detailed information on usage. Next, learn how to deploy, monitor and manage the traffic of your dubbo-go application by visiting the official website. ## Features ![dubbo-go-architecture](./doc/imgs/arc.png) Dubbo-go provides robust service governance capabilities: - **RPC Protocols**: Triple, gRPC compatible and HTTP-friendly - **Service Discovery**: Nacos, Zookeeper, Etcd, Polaris-mesh. - **Load Balance**: Adaptive, Random, RoundRobin, LeastActive, ConsistentHash - **Traffic Management**: traffic split, timeout, rate limiting, canary release - **Configuration**: yaml file, dynamic configuration(Nacos, Apollo, Zookeeper, etc.). - **Observability**: Metrics (Prometheus), tracing (OpenTelemetry v1.21.0+ with insecure options and standardized span names), logging (with service registration lifecycle events). - **HA Strategy**: Failover, Failfast, Failsafe/Failback, Available, Broadcast, Forking. - **Interoperability**: Full compatibility with Apache Dubbo (Java) via Triple protocol generic calls, group/version wildcard matching, and TLS API redesign. ## Tools Common development tools live in `tools/`. | Tool | Purpose | | --- | --- | | [dubbogo-cli](./tools/dubbogo-cli/README.md) | Scaffold demos/apps, install companion tools, inspect metadata, and debug services. | | [protoc-gen-go-triple](./tools/protoc-gen-go-triple/README.md) | Generate dubbo-go Triple bindings from protobuf service definitions. | | [protoc-gen-triple-openapi](./tools/protoc-gen-triple-openapi/README.md) | Generate OpenAPI v3 documents from Triple protobuf services. | | [imports-formatter](./tools/imports-formatter/README.md) | Format Go import blocks using dubbo-go grouping rules. | | [dubbo-go-schema](./tools/dubbo-go-schema/README.md) | Provide JSON Schema completion and validation for dubbo-go YAML config. | | [benchmark](./tools/benchmark/README.md) | Performance benchmark suite for comparing Dubbo-Go, Dubbo-Java, and gRPC frameworks. | ## Ecosystem - [dubbo-go-samples](https://github.com/apache/dubbo-go-samples) - [dubbo-go-pixiu which acting as a proxy to solve Dubbo multi-language interoperability](https://github.com/apache/dubbo-go-pixiu) - [Interoperability with Dubbo Java](https://cn.dubbo.apache.org/zh-cn/overview/mannual/golang-sdk/tutorial/interop-dubbo/) - [Console](https://github.com/apache/dubbo-admin), under development - [dubbo-go-extensions](https://github.com/apache/dubbo-go-extensions), under development ## Documentation - Official Website: https://dubbo.apache.org/ - Dubbo-go Documentation: https://cn.dubbo.apache.org/zh-cn/overview/mannual/golang-sdk/ - CHANGELOG: https://github.com/apache/dubbo-go/blob/main/CHANGELOG.md ## Community - GitHub Issues: https://github.com/apache/dubbo-go/issues - Mailing Lists: https://dubbo.apache.org/en/community/ Contributions, issues, and discussions are welcome. Please visit [CONTRIBUTING](./CONTRIBUTING.md) for details on submitting patches and the contribution workflow. ## Contact Join our discussion group through Ding talk or WeChat. ![invite.png](./doc/imgs/invite.png) ## [User List](https://github.com/apache/dubbo-go/issues/2) If you are using [apache/dubbo-go](https://github.com/apache/dubbo-go) and think that it helps you or want to contribute code for Dubbo-go, please add your company to [the user list](https://github.com/apache/dubbo-go/issues/2) to let us know your needs. <div> <table> <tbody> <tr></tr> <tr> <td align="center" valign="middle"> <a href="" target="_blank"> <img width="222px" src="./doc/imgs/usecase-beike.png"> </a> </td> <td align="center" valign="middle"> <a href="" target="_blank"> <img width="222px" src="./doc/imgs/usecase-gaode.png"> </a> </td> <td align="center" valign="middle"> <a href="" target="_blank"> <img width="222px" src="./doc/imgs/usecase-eht.png"> </a> </td> <td align="center" valign="middle"> <a href="https://github.com/mosn" target="_blank"> <img width="222px" src="./doc/imgs/usecase-mosn.png"> </a> </td> <td align="center" valign="middle"> <a href="" target="_blank"> <img width="222px" src="./doc/imgs/usecase-pdd.png"> </a> </td> </tr> <tr></tr> <tr> <td align="center" valign="middle"> <a href="http://www.j.cn" target="_blank"> <img width="222px" src="./doc/imgs/usecase-jd.png"> </a> </td> <td align="center" valign="middle"> <a href="" target="_blank"> <img width="222px" src="./doc/imgs/usecase-kaikele.png"> </a> </td> <td align="center" valign="middle"> <a href="" target="_blank"> <img width="222px" src="./doc/imgs/usecase-sohu.png"> </a> </td> <td align="center" valign="middle"> <a href="https://www.zto.com" target="_blank"> <img width="222px" src="./doc/imgs/usecase-zto.png"> </a> </td> <td align="center" valign="middle"> <a href="" target="_blank"> <img width="222px" src="./doc/imgs/usecase-tianyi.png"> </a> </td> </tr> <tr></tr> <tr> <td align="center" valign="middle"> <a href="http://www.mgtv.com" target="_blank"> <img width="222px" src="./doc/imgs/usecase-mgtv.png"> </a> </td> <td align="center" valign="middle"> <a href="" target="_blank"> <img width="222px" src="./doc/imgs/usecase-vivo.png"> </a> </td> <td align="center" valign="middle"> <a href="http://www.ruubypay.com" target="_blank"> <img width="222px" src="./doc/imgs/usecase-tuya.png"> </a> </td> <td align="center" valign="middle"> <a href="https://www.dingtalk.com" target="_blank"> <img width="222px" src="./doc/imgs/usecase-xiecheng.png"> </a> </td> <td align="center" valign="middle"> <a href="https://www.autohome.com.cn" target="_blank"> <img width="222px" src="./doc/imgs/usecase-autohome.png"> </a> </td> </tr> <tr></tr> <tr> <td align="center" valign="middle"> <a href="https://www.mi.com/" target="_blank"> <img width="222px" src="./doc/imgs/usecase-mi.png"> </a> </td> <td align="center" valign="middle"> <a href="https://opayweb.com/" target="_blank"> <img width="222px" src="./doc/imgs/usecase-zonghengwenxue.png"> </a> </td> <td align="center" valign="middle"> <a href="" target="_blank"> <img width="222px" src="./doc/imgs/usecase-tiger-brokers.png"> </a> </td> <td align="center" valign="middle"> <a href="" target="_blank"> <img width="222px" src="./doc/imgs/usecase-zhanzhang.png" > </a> </td> <td align="center" valign="middle"> <a href="" target="_blank"> <img width="222px" src="./doc/imgs/usecase-genshuixue.png" > </a> </td> </tr> <tr></tr> </tbody> </table> </div> [See more user cases](https://github.com/apache/dubbo-go/issues/2) ## License Apache Dubbo-go software is licensed under the Apache License Version 2.0. See the [LICENSE](./LICENSE) file for details.

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