wmzy / fetch-fun / 33618156416

97%

Build Type

push

github

Committed by wmzy

Commit Message

perf: memoize middleware sorting and chain per middlewares reference

applyMiddlewares re-sorted the middleware list and rebuilt the whole
chain with reduceRight on every request. Configs are immutable (every
pipe copies), so the middlewares array reference identifies a client's
middleware set: cache the sort against it in a WeakMap. Middleware
functions receive — and may capture — the config they are applied with
(retry reads o.signal, logging reads o.url), so the fully built chain
is only reused for the identical config, base fetch and timeout
budgets.

Coverage Stats

340 of 358 branches covered (94.97%)

Branch coverage included in aggregate %.

13 of 13 new or added lines in 1 file covered. (100.0%)

6 existing lines in 2 files now uncovered.

501 of 507 relevant lines covered (98.82%)

39.97 hits per line