markokocic opened a new issue, #11237:
URL: https://github.com/apache/apisix/issues/11237
### Description
`proxy-rewrite` plugin has a possibility to add / remove / set headers to
the request. It would be nice if it were possible to add / remove / set url
query parameters.
For example, let's say we get a request with the following uri:
`/path?param1=1¶m2=this¶m3=that` and want to overwrite param1, remove
param2, and add param4 before sending the request to the upstream. If
`proxy-rewrite` would have the same options for query params as for headers, we
could configure it somethign like this:
```json
"proxy-rewrite": {
"uri": "/test/home.html",
"host": "iresty.com",
"query-params": {
"set": {
"param1": "etwas"
},
"add": {
"param4": "(id=32&name=\"test*\")&age<32",
"param4" : "it's valid to have more params with the same name"
},
"remove":[
"param2"
]
}
```
Plugin should take care that complete search sting is properly escaped and
encoded. This would come very handy when dealing with ODATA services on the
backend that use query-params intensively.
Alternative: theoretically it is possible to manipulate the whole uri,
including the search string, using `regex_uri`, but in the case of multiple
parameters that regex can quickly grow very wild and unreliable.
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