Data Validations

npm install zod

import { z } from "zod";
 
export const currentUserScheme = z.object({
    email: z.string(),
    name: z.string(),
    studentId: z.number()
})
 
export type CurrentUser = z.infer<typeof currentUserScheme>;
/*
{
    email: string
    name: string
    studentId: number
}
*/

//...
import { currentUserScheme, CurrentUser } from './scheme';
 
app.post('/register', async (req: Request, res: Response) => {
    try {
        // Will throw error is input body is not match the scheme
        const currentUser: CurrentUser = currentUserScheme.parse(req.body);
        console.log(currentUser);
 
        return res.status(200).json(currentUser);
    }
    catch (error) {
        return res.status(500).json(error);
    }
});