vincentwc opened a new issue #4328:
URL: https://github.com/apache/apisix/issues/4328
### 我现在想在创建路由的时候给路由的key添加一个字符串该怎么实现
看了一下etcd里面路由的存储，key都是
/apisix/routes/85这样的，现在想对这个做一些扩展，/apisix/routes/{String}/85
该怎么实现？
目前的思路是在请求头里面添加一个k/v，然后再apisix里面怎么解析出来并在routes.lua里面使用?
目前的想法是将k/v放到ngx.ctx里面，但是之前没做过，所以不知道该怎么实现，可以该我个实现说明吗
### Environment
Request help without environment information will be ignored or closed.
* apisix version (cmd: `apisix version`):
* OS (cmd: `uname -a`):
* OpenResty / Nginx version (cmd: `nginx -V` or `openresty -V`):
* etcd version, if have (cmd: run `curl
http://127.0.0.1:9090/v1/server_info` to get the info from server-info API):
* apisix-dashboard version, if have:
* luarocks version, if the issue is about installation (cmd: `luarocks
--version`):
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