bhuvan-somisetty opened a new pull request, #14012:
URL: https://github.com/apache/apisix/pull/14012
### Description
In `apisix/plugins/splunk-hec-logging.lua`, `send_to_splunk` handles non-200
responses by decoding JSON and concatenating `body.text`. When Splunk HEC or an
intermediate reverse proxy / API gateway returns an error response with JSON
that lacks the `text` attribute (such as `{"message": "Unauthorized"}` or
`{"error": "Forbidden"}`), `body.text` evaluates to `nil`. This triggers a Lua
runtime error: `attempt to concatenate field 'text' (a nil value)`, causing the
batch processor timer to crash.
This PR updates `send_to_splunk` to safely extract error information by
checking `body.text or body.message`, falling back to `res.body`, and finally
falling back to the HTTP status code.
#### Which issue(s) this PR fixes:
Fixes #14011
### Checklist
- [x] I have explained the need for this PR and the problem it solves
- [x] I have explained the changes or the new features added to this PR
- [x] I have added tests corresponding to this change
- [ ] I have updated the documentation to reflect this change
- [x] I have verified that this change is backward compatible (If not,
please discuss on the [APISIX mailing
list](https://github.com/apache/apisix/tree/master#community) first)
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