---
title: client-control
---
## Summary
- [**Name**](#name)
- [**Attributes**](#attributes)
- [**How To Enable**](#how-to-enable)
- [**Test Plugin**](#test-plugin)
- [**Disable Plugin**](#disable-plugin)
## Name
The `client-control` plugin dynamically controls the behavior of Nginx to
handle the client request.
This plugin requires APISIX to run on [APISIX-OpenResty](../how-to-build.md#6-build-openresty-for-apisix).
## Attributes
| Name | Type | Requirement | Default | Valid | Description |
| --------- | ------------- | ----------- | ---------- | ------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------- |
| max_body_size | integer | optional | | >= 0 | dynamically set the `client_max_body_size` directive |
## How To Enable
Here's an example, enable this plugin on the specified route:
```shell
curl -i http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
"uri": "/index.html",
"plugins": {
"client-control": {
"max_body_size" : 1
}
},
"upstream": {
"type": "roundrobin",
"nodes": {
"39.97.63.215:80": 1
}
}
}'
```
## Test Plugin
Use curl to access:
```shell
curl -i http://127.0.0.1:9080/index.html -d '123'
HTTP/1.1 413 Request Entity Too Large
...
413 Request Entity Too Large
413 Request Entity Too Large
openresty
```
## Disable Plugin
When you want to disable this plugin, it is very simple,
you can delete the corresponding json configuration in the plugin configuration,
no need to restart the service, it will take effect immediately:
```shell
curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
"uri": "/index.html",
"upstream": {
"type": "roundrobin",
"nodes": {
"39.97.63.215:80": 1
}
}
}'
```
This plugin has been disabled now. It works for other plugins.