ext-plugin-post-resp

Description

The ext-plugin-post-resp Plugin is for running specific external Plugins in the Plugin Runner before executing the built-in Lua Plugins.

The ext-plugin-post-resp plugin will be executed after the request gets a response from the upstream.

After enabling this plugin, APISIX will use the lua-resty-http library to make requests to the upstream, this results in:

See External Plugin to learn more.

ext-plugin-post-resp - 图1note

Execution of External Plugins will affect the response of the current request.

Attributes

NameTypeRequiredDefaultValid valuesDescription
confarrayFalse[{“name”: “ext-plugin-A”, “value”: “{\”enable\”:\”feature\”}”}]List of Plugins and their configurations to be executed on the Plugin Runner.
allow_degradationbooleanFalsefalseSets Plugin degradation when the Plugin Runner is not available. When set to true, requests are allowed to continue.

Enabling the Plugin

The example below enables the ext-plugin-post-resp Plugin on a specific Route:

  1. curl -i http://127.0.0.1:9180/apisix/admin/routes/1  -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
  2. {
  3.     "uri": "/index.html",
  4.     "plugins": {
  5.         "ext-plugin-post-resp": {
  6.             "conf" : [
  7.                 {"name": "ext-plugin-A", "value": "{\"enable\":\"feature\"}"}
  8.             ]
  9.         }
  10.     },
  11.     "upstream": {
  12.         "type": "roundrobin",
  13.         "nodes": {
  14.             "127.0.0.1:1980": 1
  15.         }
  16.     }
  17. }'

Example usage

Once you have configured the External Plugin as shown above, you can make a request to execute the Plugin:

  1. curl -i http://127.0.0.1:9080/index.html

This will reach the configured Plugin Runner and the ext-plugin-A will be executed.

Disable Plugin

To disable the ext-plugin-post-resp Plugin, you can delete the corresponding JSON configuration from the Plugin configuration. APISIX will automatically reload and you do not have to restart for this to take effect.

  1. curl http://127.0.0.1:9180/apisix/admin/routes/1  -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
  2. {
  3.     "uri": "/index.html",
  4.     "upstream": {
  5.         "type": "roundrobin",
  6.         "nodes": {
  7.             "127.0.0.1:1980": 1
  8.         }
  9.     }
  10. }'