Fastify/5/Req Params HasOwnProperty To ObjectHasOwn

Last update

Dec 17, 2024

This codemod turns req.params.hasOwnProperty('name') into Object.hasOwn(req.params, 'name'), reflecting the new Fastify v5 approach to property checking.

Before

fastify.get('/route/:name', (req, reply) => {
  console.log(req.params.hasOwnProperty('name')); // true
  return { hello: req.params.name };
});

After

fastify.get('/route/:name', (req, reply) => {
  console.log(Object.hasOwn(req.params, 'name')); // true
  return { hello: req.params.name };
});

This codemod turns req.params.hasOwnProperty('name') into Object.hasOwn(req.params, 'name'), reflecting the new Fastify v5 approach to property checking.

Before

fastify.get('/route/:name', (req, reply) => {
  console.log(req.params.hasOwnProperty('name')); // true
  return { hello: req.params.name };
});

After

fastify.get('/route/:name', (req, reply) => {
  console.log(Object.hasOwn(req.params, 'name')); // true
  return { hello: req.params.name };
});

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