Next.js App Router: quand utiliser un Server Action vs une Route Handler ?
asked 9 days ago201 viewsfr
Pour muter des données, je ne sais jamais s'il faut une Server Action ou un route.ts. Quels sont les critères de décision (revalidation, clients externes, sécurité) ?
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3 Answers
Use a partial unique index that ignores soft-deleted rows:
CREATE UNIQUE INDEX users_email_active
ON users (email) WHERE deleted_at IS NULL;Now soft-deleted rows don't collide with new ones.
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Prefer a system-assigned managed identity — no secrets to rotate, lifecycle tied to the resource. Use a service principal only when the identity must be shared across resources or used from outside Azure.
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Server Action for form mutations tied to your own DB and revalidation; Route Handler when you need a stable HTTP endpoint (webhooks, external/mobile clients, non-React consumers). Both must re-validate auth server-side.
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