[I] help request: Unable to get custom plugin to work [apisix]

[via GitHub]

dihmeetree opened a new issue, #12190:
URL: https://github.com/apache/apisix/issues/12190

   ### Description
   
   Hi guys I'm trying to get a custom plugin to work. 
   
   Here is my very basic plugin code:
   ```lua
   local core = require("apisix.core")
   
   -- Declare the plugin's name
   local plugin_name = "hello"
   
   -- Define the plugin schema
   local plugin_schema = {
       type = "object",
       properties = {},
       required = {},
   }
   
   -- Define the plugin with its version, priority, name, and schema
   local _M = {
       version = 0.1,
       priority = 2000,
       name = plugin_name,
       schema = plugin_schema
   }
   
   -- Function to check if the plugin configuration is correct
   function _M.check_schema(conf)
       return core.schema.check(plugin_schema, conf)
   end
   
   -- Function to be called during the access phase
   function _M.access(conf, ctx)
       return 200, { message = "hit example plugin" }
   end
   
   -- Return the plugin so it can be used by APISIX
   return _M
   ```
   
   I've added the neccesary Lua load option in my config file like so:
   ```yaml
   apisix:
     # ...
     # Path where plugins are located
     extra_lua_path: "/opt/?.lua"
   ```
   
   Then I added a route like so to test the plugin
   ```
   curl "http://127.0.0.1:9180/apisix/admin/routes/hello"; -H "X-API-KEY: 
edd1c9f034335f136f87ad84b625c8f1" -X PUT -d '
   {
      "name": "hello-route",
      "methods": [
         "GET"
      ],
      "uri": "/hello",
      "upstream_id":"1",
      "plugins": {
         "hello": {}
      }
   }'
   ```
   
   Doing this curl for the plugins list does return the hello plugin
   ```
   curl http://localhost:9180/apisix/admin/plugins/list -H "X-API-KEY: 
edd1c9f034335f136f87ad84b625c8f1
   ```
   which returns
   ```
   ["hello","limit-count","prometheus","log-rotate"]
   ```
   
   I should be able to go to the `/hello` route and see the custom message from 
the plugin no? However I do not, I just see the stuff from my upstream app 
instead.
   
   Any idea's what i'm doing wrong?
   
   ### Environment
   
   - APISIX version (run `apisix version`): Running in docker so it's: 
apache/apisix:3.12.0-debian
   - Operating system (run `uname -a`): linux (Docker)
   - OpenResty / Nginx version (run `openresty -V` or `nginx -V`): Whatever is 
in the apache/apisix:3.12.0-debian image
   - etcd version, if relevant (run `curl 
http://127.0.0.1:9090/v1/server_info`): bitnami/etcd:3.5.21 Docker image
   - APISIX Dashboard version, if relevant:
   - Plugin runner version, for issues related to plugin runners:
   - LuaRocks version, for installation issues (run `luarocks --version`):
   


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