# grpc-dubbo-proxy

**Repository Path**: coderanger/grpc-dubbo-proxy

## Basic Information

- **Project Name**: grpc-dubbo-proxy
- **Description**: 将dubbo 服务转换为gRPC服务，便于多语言接入。
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 1
- **Created**: 2020-03-11
- **Last Updated**: 2023-01-11

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

[中文版本](README_zh.md)  
## gRPC Dubbo Proxy
gRPC Dubbo Proxy, a gRPC gateway of Dubbo, switch from gRPC request to Dubbo protocol，then invoke Dubbo service and return to the result. Later Dubbo Proxy would combine several features, including circuit breaker, current-limiting, api management. 


### instructions

```
SPRING_PROFILES_ACTIVE=product mvn clean spring-boot:run
```
 
Group and version is the mapping data in Dubbo service. 

### gRPC ProtoBuf: 

```proto
syntax = "proto3";

option java_multiple_files = true;
option java_package = "org.apache.dubbo.proxy.proto";
option optimize_for = SPEED;

package dubbo;

service ProxyService {
    rpc InvokeProxy (ProxyRequest) returns (ProxyReply) {}
}
  
message ProxyRequest {
	 string application = 1; //can be null
	 string interfaceName=2; // the dubbo service to invoke
	 string version = 3;     // the dubbo service version
	 string group = 4;       // group ,can be null
	 string method=5;        // method
	 repeated string types=6;//method parameter array
	 string values=7; //method value json array
}
  
message ProxyReply {
	string result=1;  //result json string
}

```


* In the Dubbo 2.7 version  and later updates versions, paramTypes is optional data, if not filled in, gRPC Dubbo Proxy would get related mapping data from metadata center.
* You can set registry address and metadata center address in `application-{profile}.yml`
```
proxy.registry.address: zookeeper://127.0.0.1:2181   #registry center address, same as Dubbo service's 
proxy.metadata-report.address: zookeeper://127.0.0.1:2181  #metadata center address, used by paramType search, support for dubbo 2.7 or later
```