Baoyuantop commented on issue #13041:
URL: https://github.com/apache/apisix/issues/13041#issuecomment-3976021119
Hi @luuvanloia4, the header_filter phase is designed for high-performance
stream processing, and unlike the access or rewrite phases, it does not have a
built-in pcall wrapper in the core plugin runner. An unhandled exception in
this phase is considered a critical error and will terminate the request
processing.
The responsibility for robust error handling within a filter phase lies with
the plugin developer. The recommended approach is to wrap your logic inside
pcall within your plugin's header_filter function. This allows you to catch any
exceptions, log them for debugging, and prevent the request from crashing.
```lua
function _M.header_filter(conf, ctx)
local ok, err = pcall(function()
-- Your original header_filter logic goes here.
end)
if not ok then
core.log.error("Error in my_custom_plugin header_filter: ", err)
end
end
```
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