docs: network filter grpc (#2890)

content/zh-cn/overview/mannual/dubbo-go-pixiu/user/networkfilter/grpc.md

@@ -1,17 +1,105 @@
 ---
 aliases:
-    - /zh/docs3-v2/dubbo-go-pixiu/user/networkfilter/grpc/
-    - /zh-cn/docs3-v2/dubbo-go-pixiu/user/networkfilter/grpc/
+  - /zh/docs3-v2/dubbo-go-pixiu/user/networkfilter/grpc/
+  - /zh-cn/docs3-v2/dubbo-go-pixiu/user/networkfilter/grpc/
 description: Grpc NetWorkFilter 介绍
 linkTitle: Grpc NetWorkFilter 介绍
 title: Grpc NetWorkFilter 介绍
 type: docs
 weight: 20
 ---
 
+# 使用 grpc 调用服务提供程序
 
+> [下面的文档符合代码](https://github.com/apache/dubbo-go-pixiu-samples/blob/main/http/grpc/pixiu/conf.yaml)
 
+## 定义Pixiu配置文件
 
+```yaml
+static_resources:
+  listeners:
+    - name: "net/http"
+      protocol_type: "HTTP"
+      address:
+        socket_address:
+          address: "0.0.0.0"
+          port: 8881
+      filter_chains:
+        filters:
+          - name: dgp.filter.httpconnectionmanager
+            config:
+              route_config:
+                routes:
+                  - match:
+                      prefix: "/api/v1"
+                    route:
+                      cluster: "test-grpc"
+                      cluster_not_found_response_code: 505
+              http_filters:
+                - name: dgp.filter.http.grpcproxy
+                  config:
+                    path: /mnt/d/WorkSpace/GoLandProjects/dubbo-go-pixiu/samples/http/grpc/proto
+                - name: dgp.filter.http.response
+                  config:
+              server_name: "test-http-grpc"
+              generate_request_id: false
+      config:
+        idle_timeout: 5s
+        read_timeout: 5s
+        write_timeout: 5s
+  clusters:
+    - name: "test-grpc"
+      lb_policy: "RoundRobin"
+      endpoints:
+        - socket_address:
+            address: 127.0.0.1
+            port: 50001
+            protocol_type: "GRPC"
+  timeout_config:
+    connect_timeout: "5s"
+    request_timeout: "10s"
+  shutdown_config:
+    timeout: "60s"
+    step_timeout: "10s"
+    reject_policy: "immediacy"
+```
 
+> Grpc 服务器在“集群”中定义
 
-欢迎认领补充此文档。
+> 目前 http 请求仅支持 json body 解析参数
+
+## 准备服务器
+
+[generate pb files under with command:](https://github.com/apache/dubbo-go-pixiu-samples/tree/main/http/grpc/proto) 
+
+```
+protoc --go_out=. --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative hello_grpc.proto
+```
+
+## 启动 Server
+
+[Run](https://github.com/apache/dubbo-go-pixiu-samples/blob/main/http/grpc/server/app/server.go) 
+
+```shell
+go run server.go
+```
+
+## 启动 Pixiu
+
+```shell
+./dubbo-go-pixiu gateway start --config {CURRENT_PATH}/samples/http/grpc/pixiu/conf.yaml
+```
+
+## 使用 curl 进行测试
+
+使用以下命令运行命令 curl：
+
+```shell
+curl http://127.0.0.1:8881/api/v1/provider.UserProvider/GetUser
+```
+
+```shell
+curl http://127.0.0.1:8881/api/v1/provider.UserProvider/GetUser -X POST -d '{"userId":1}'
+```
+
+> 如果响应正文是 json，则`Content-Type`的标头将设置为`application/json`。如果它只是一个纯文本，则`Content-Type`的标题是`text/plain`。