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173 lines
7.4 KiB
Markdown
173 lines
7.4 KiB
Markdown
---
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title: batch-requests
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---
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<!--
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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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-->
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## 目录
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- [**简介**](#简介)
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- [**属性**](#属性)
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- [**如何启用**](#如何启用)
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- [**如何配置**](#如何配置)
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- [**元数据**](#元数据)
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- [**批量接口请求/响应**](#批量接口请求/响应)
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- [**测试插件**](#测试插件)
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- [**禁用插件**](#禁用插件)
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## 简介
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`batch-requests` 插件可以一次接受多个请求并以 [http pipeline](https://en.wikipedia.org/wiki/HTTP_pipelining) 的方式在网关发起多个http请求，合并结果后再返回客户端，这在客户端需要访问多个接口时可以显著地提升请求性能。
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> **提示**
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>
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> 外层的 Http 请求头会自动设置到每一个独立请求中，如果独立请求中出现相同键值的请求头，那么只有独立请求的请求头会生效。
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## 属性
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无
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## 接口
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插件会增加 `/apisix/batch-requests` 这个接口，你可能需要通过 [interceptors](../../plugin-interceptors.md)
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来保护它。
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## 如何启用
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本插件默认启用。
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## 如何配置
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默认本插件限制请求体的大小不能大于 1 MiB。这个限制可以通过 `apisix/admin/plugin_metadata/batch-requests` 来修改。
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```shell
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curl http://127.0.0.1:9080/apisix/admin/plugin_metadata/batch-requests -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
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{
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"max_body_size": 4194304
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}'
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```
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## 元数据
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| 名称 | 类型 | 必选项 | 默认值 | 有效值 | 描述 |
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| ---------------- | ------- | ------ | ------------- | ------- | ------------------------------------------------ |
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| max_body_size | integer | 必选 | 1048576 | > 0 | 请求体的最大大小，单位为字节。|
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## 批量接口请求/响应
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插件会为 `apisix` 创建一个 `/apisix/batch-requests` 的接口来处理你的批量请求。
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### 接口请求参数:
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| 参数名 | 类型 | 可选项 | 默认值 | 有效值 | 描述 |
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| -------- | --------------------------- | ------ | ------ | ------ | -------------------------------- |
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| query | object | 可选 | | | 给所有请求都携带的 `QueryString` |
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| headers | object | 可选 | | | 给所有请求都携带的 `Header` |
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| timeout | number | 可选 | 30000 | | 聚合请求的超时时间，单位为 `ms` |
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| pipeline | [HttpRequest](#HttpRequest) | 必须 | | | Http 请求的详细信息 |
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#### HttpRequest
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| 参数名 | 类型 | 可选 | 默认值 | 有效值 | 描述 |
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| ---------- | ------- | ---- | ------ | -------------------------------------------------------------------------------- | ------------------------------------------------------------------------- |
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| version | string | 可选 | 1.1 | [1.0, 1.1] | 请求用的 `http` 协议版本 |
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| method | string | 可选 | GET | ["GET", "POST", "PUT", "DELETE", "PATCH", "HEAD", "OPTIONS", "CONNECT", "TRACE"] | 请求使用的 `http` 方法 |
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| query | object | 可选 | | | 独立请求所携带的 `QueryString`, 如果 `Key` 和全局的有冲突，以此设置为主。 |
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| headers | object | 可选 | | | 独立请求所携带的 `Header`, 如果 `Key` 和全局的有冲突，以此设置为主。 |
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| path | string | 必须 | | | 请求路径 |
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| body | string | 可选 | | | 请求体 |
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| ssl_verify | boolean | 可选 | false | | 验证 SSL 证书与主机名是否匹配 |
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### 接口响应参数：
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返回值为一个 [HttpResponse](#HttpResponse) 的 `数组`。
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#### HttpResponse
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| 参数名 | 类型 | 描述 |
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| ------- | ------- | ------------------- |
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| status | integer | Http 请求的状态码 |
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| reason | string | Http 请求的返回信息 |
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| body | string | Http 请求的响应体 |
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| headers | object | Http 请求的响应头 |
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## 测试插件
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你可以将要访问的请求信息传到网关的批量请求接口( `/apisix/batch-requests` )，网关会以 [http pipeline](https://en.wikipedia.org/wiki/HTTP_pipelining) 的方式自动帮你完成请求。
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```shell
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curl --location --request POST 'http://127.0.0.1:9080/apisix/batch-requests' \
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--header 'Content-Type: application/json' \
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--data '{
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"headers": {
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"Content-Type": "application/json",
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"admin-jwt":"xxxx"
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},
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"timeout": 500,
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"pipeline": [
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{
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"method": "POST",
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"path": "/community.GiftSrv/GetGifts",
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"body": "test"
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},
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{
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"method": "POST",
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"path": "/community.GiftSrv/GetGifts",
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"body": "test2"
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}
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]
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}'
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```
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返回如下：
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```json
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[
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{
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"status": 200,
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"reason": "OK",
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"body": "{\"ret\":500,\"msg\":\"error\",\"game_info\":null,\"gift\":[],\"to_gets\":0,\"get_all_msg\":\"\"}",
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"headers": {
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"Connection": "keep-alive",
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"Date": "Sat, 11 Apr 2020 17:53:20 GMT",
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"Content-Type": "application/json",
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"Content-Length": "81",
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"Server": "APISIX web server"
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}
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},
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{
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"status": 200,
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"reason": "OK",
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"body": "{\"ret\":500,\"msg\":\"error\",\"game_info\":null,\"gift\":[],\"to_gets\":0,\"get_all_msg\":\"\"}",
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"headers": {
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"Connection": "keep-alive",
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"Date": "Sat, 11 Apr 2020 17:53:20 GMT",
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"Content-Type": "application/json",
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"Content-Length": "81",
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"Server": "APISIX web server"
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}
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}
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]
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```
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## 禁用插件
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正常情况不需要禁用本插件，如有需要，在 `/conf/config.yaml` 中新建一个所需的 `plugins` 列表，以覆盖原列表。
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