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101 lines
3.3 KiB
Markdown
101 lines
3.3 KiB
Markdown
---
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title: ext-plugin-pre-req
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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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## Summary
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- [**Name**](#name)
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- [**Attributes**](#attributes)
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- [**How To Enable**](#how-to-enable)
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- [**Test Plugin**](#test-plugin)
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- [**Disable Plugin**](#disable-plugin)
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## Name
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The `ext-plugin-pre-req` runs specific external plugins in the plugin runner, before
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executing most of the builtin Lua plugins.
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To know what is the plugin runner, see [external plugin](../external-plugin.md) section.
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The result of external plugins execution will affect the behavior of the current request.
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## Attributes
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| Name | Type | Requirement | Default | Valid | Description |
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| --------- | ------------- | ----------- | ---------- | ------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------- |
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| conf | array | optional | | [{"name": "ext-plugin-A", "value": "{\"enable\":\"feature\"}"}] | The plugins list which will be executed at the plugin runner with their configuration |
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## How To Enable
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Here's an example, enable this plugin on the specified route:
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```shell
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curl -i http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
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{
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"uri": "/index.html",
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"plugins": {
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"ext-plugin-pre-req": {
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"conf" : [
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{"name": "ext-plugin-A", "value": "{\"enable\":\"feature\"}"}
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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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"39.97.63.215:80": 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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Use curl to access:
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```shell
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curl -i http://127.0.0.1:9080/index.html
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```
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You will see the configured plugin runner will be hit and plugin `ext-plugin-A`
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is executed at that side.
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## Disable Plugin
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When you want to disable this plugin, it is very simple,
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you can delete the corresponding json configuration in the plugin configuration,
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no need to restart the service, it will take effect immediately:
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```shell
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curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
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{
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"uri": "/index.html",
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"upstream": {
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"type": "roundrobin",
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"nodes": {
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"39.97.63.215:80": 1
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}
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}
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}'
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```
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This plugin has been disabled now. It works for other plugins.
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