Can someone please explain to me the request and response handler types used in fastify?
Currently, I am utilizing 'any' without knowing the specific types, which has triggered a warning from the TypeScript eslint:
fastify.post('/ac', async(req: any , res: any) => {
If you're in need of the correct classes, you can use "FastifyRequest" and "FastifyReply" for your project.
To utilize them, refer to the following implementation guide:
import { FastifyInstance, FastifyReply, FastifyRequest } from 'fastify';
fastify.post('/ac', async (req: FastifyRequest, res: FastifyReply) => {
});
To ensure accuracy, it is recommended to implement an interface (such as IPostUser) on the Body instead of creating a custom request object. Simply use the following code snippet:
interface IPostUser {
username: string
}
fastify.post('/:id', async (req: FastifyRequest<{ Params: { id: number }; Body: IPostUser }>, reply) => {
console.log(req.params.id)
console.log(req.body)
})
For an even more efficient solution, consider leveraging TypeScript's type refinement in conjunction with a Fastify JSON schema. Utilizing schemas is highly recommended!
In this scenario, employing Type Providers in Fastify, such as the package
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