huangyutongs commented on issue #9830:
URL: https://github.com/apache/apisix/issues/9830#issuecomment-1635464561
> > I want to do limit-req for the request header `x-userid: test`, how to
do it,
>
> I think you can reference it with $http_x_userid
It seems that the content of the request header cannot be obtained
Here is my configuration
```
apiVersion: apisix.apache.org/v2
kind: ApisixRoute
metadata:
name: apisix-dashbord-route
spec:
http:
- backends:
- serviceName: apisix-dashboard
servicePort: 80
match:
hosts:
- apisixui.baidu.cn
paths:
- /*
name: apisix-dashbord-route
plugins:
- config:
burst: 0
key: $http_x_userid
key_type: var_combination
rate: 1
rejected_code: 500
rejected_msg: Requests are too frequent, please try again later.
enable: true
name: limit-req
```
Quickly make two requests
```
curl -I 192.168.110.186 -H "host: apisixui.baidu.cn"
HTTP/1.1 500 Internal Server Error
```
There is no x-userid: test in my request header, but it is limited
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