Blog
Orval: REST client generation, CORS mutators for fetch and axios, and OpenAPI tags mapped to hooks
Orval mutators let you inject CSRF tokens and tracing headers—ensure they match Allow-Headers on the gateway.
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orvalopenapicors
React Query
Generated hooks share query keys—invalidate CORS-sensitive queries after auth refresh.
Suspense boundaries may mask CORS errors in waterfalls—surface error boundaries in dev.
Zod
When combining Orval with Zod validation, reject invalid payloads before fetch to save noisy preflights.
Schema drift between backend and client can cause 400s mistaken for CORS in SPAs.