niemne opened a new pull request, #13297:
URL: https://github.com/apache/apisix/pull/13297
### Description
This PR enhances the limit-req plugin by introducing support for dynamic
variables and multiple rule sets, allowing for more flexible and granular rate
limiting strategies.
**Key Changes**:
1. Dynamic Variables: The rate and burst parameters now accept string
variables (e.g. ${http_rate}), enabling dynamic threshold adjustments based on
request attributes.
2. Multi-Rule Support: Introduced a new rules configuration array. This
allows defining multiple rate limiting rules (containing rate, burst, and key)
within a single plugin instance.
3. Logic Refactoring: Core logic has been refactored into
apisix/plugins/limit-req/init.lua to handle the new rule resolution and
processing.
#### Which issue(s) this PR fixes:
relate issue: https://github.com/apache/apisix/issues/13179
### 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
- [x] 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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