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113 lines
2.8 KiB
Markdown
113 lines
2.8 KiB
Markdown
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# [Chinese](grpc-transcoding-cn.md)
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## Name
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HTTP(s) -> APISIX -> gRPC server
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### Proto
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#### Attributes
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* `content`: `.proto` file's content.
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#### Add a proto
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Here's an example, adding a proto which `id` is `1`:
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```shell
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curl http://127.0.0.1:9080/apisix/admin/proto/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
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{
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"content" : "syntax = \"proto3\";
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package helloworld;
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service Greeter {
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rpc SayHello (HelloRequest) returns (HelloReply) {}
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}
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message HelloRequest {
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string name = 1;
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}
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message HelloReply {
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string message = 1;
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}"
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}'
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```
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## Attribute List
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|Name |Requirement |Description|
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|--------- |--------|-----------|
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| proto_id |required|`.proto` content id.|
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| service |required|the grpc service name.|
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| method |required|the method name of grpc service.|
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## How To Enable
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Here's an example, to enable the grpc-transcode plugin to specified route:
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* attention: the route's option `service_protocol` must be `grpc`
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* the grpc server example：[grpc_server_example](https://github.com/iresty/grpc_server_example)
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```shell
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curl http://127.0.0.1:9080/apisix/admin/routes/111 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
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{
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"methods": ["GET"],
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"uri": "/grpctest",
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"service_protocol": "grpc",
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"plugins": {
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"grpc-transcode": {
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"proto_id": "1",
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"service": "helloworld.Greeter",
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"method": "SayHello"
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}
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},
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"upstream": {
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"type": "roundrobin",
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"nodes": {
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"127.0.0.1:50051": 1
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}
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}
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}'
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```
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## Test Plugin
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The above configuration proxy :
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```shell
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curl -i http://127.0.0.1:9080/grpctest?name=world
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```
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response:
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```shell
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HTTP/1.1 200 OK
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Date: Fri, 16 Aug 2019 11:55:36 GMT
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Content-Type: application/json
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Transfer-Encoding: chunked
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Connection: keep-alive
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Server: APISIX web server
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Proxy-Connection: keep-alive
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{"message":"Hello world"}
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```
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This means that the proxying is working.
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