feat(upstream): support http_400/http_401/http_402 in set_next_upstream - #120
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feat(upstream): support http_400/http_401/http_402 in set_next_upstream#120oowl wants to merge 1 commit into
oowl wants to merge 1 commit into
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Expose next_upstream masks for HTTP 400, 401 and 402 so that set_next_upstream() accepts these status codes, enabling failover on them (e.g. ai-proxy-advanced failover_criteria). Requires the matching nginx core flags NGX_HTTP_UPSTREAM_FT_HTTP_400/401/402. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Summary
Expose
next_upstreammasks for HTTP 400, 401 and 402 so thatresty.kong.upstream.set_next_upstream()accepts these status codes. Previously only403/404/429were supported among 4xx, so passing e.g.http_401returned"argument #i is not a valid argument".Changes
src/ngx_http_lua_kong_module.c: exportngx_http_lua_kong_next_upstream_mask_http_400/401/402.lualib/resty/kong/upstream.lua: declare the new externs in theffi.cdefand add them tonext_upstream_table.Dependency
Requires the matching nginx core flags
NGX_HTTP_UPSTREAM_FT_HTTP_400/401/402, added on the Kong side via an OpenResty patch (nginx-1.27.1_26-upstream-next-extra-4xx.patchin kong-ee). Without the patch the module will fail to compile (undefinedNGX_HTTP_UPSTREAM_FT_HTTP_40x).Motivation
Lets
ai-proxy-advancedfailover to the next target/provider when an upstream returns 400/401/402 (e.g. expired/invalid API key → 401).🤖 Generated with Claude Code
Consumer
Used by Kong/kong-ee#19297 (ai-proxy-advanced
failover_criteriahttp_400/401/402).