Fastify/5/MigrationRecipe

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Last update

Dec 17, 2024

This recipe provides a set of codemods designed to assist with migrating to Fastify 5. Each codemod addresses specific changes and enhancements introduced in Fastify 5.

Included Codemods

  • fastify/5/req-params-hasOwnProperty-to-objectHasOwn: Converts req.params.hasOwnProperty to Object.hasOwn.
  • fastify/5/listen-arg-transformation: Updates the transformation of arguments passed to listen.
  • fastify/5/replace-hardcoded-url-in-hasroute: Replaces hardcoded URLs in hasRoute checks.
  • fastify/5/replace-reply-sent-with-hijack: Replaces reply.sent with reply.hijack.
  • fastify/5/add-expose-head-routes-option: Adds the exposeHeadRoutes option where necessary.
  • fastify/5/decorate-request-to-getter-method: Converts request decorators to getter methods.
  • fastify/5/route-schema-enhancement: Enhances route schemas with new features.
  • fastify/5/req-connection-to-socket: Converts req.connection to req.socket.
  • fastify/5/getResponseTime-to-elapsedTime: Renames getResponseTime to elapsedTime.
  • fastify/5/redirect-arg-order: Updates the argument order for redirect.
  • fastify/5/make-reply-trailer-async: Converts reply.trailer to an async method.
  • fastify/5/remove-done-callback: Changes plugin.register from done callback to return.
  • fastify/5/rename-logger-to-logger-instance: Renames logger to loggerInstance.

These codemods will help streamline your migration process and ensure compatibility with Fastify 5.


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