This is a very simple middleware for using simplifying the use of [class-validator](https://github.com/typestack/class-validator) in express routes.
npm install express-class-validatorThis is a very simple middleware for using simplifying the use of class-validator in express routes.
> It may not be worth installing this package
>
> Please consider copy-pasting the source from ./lib/index.ts
npm i express-class-validator
Usage
See ./sample/index.ts for a working example ()
`typescript
import { makeValidateBody } from 'express-class-validator'class User {
@IsEmail()
public email!: string
public hello(): string {
return "World!"
}
}
app.post(
'/user',
makeValidateBody(User), // Will validate req.body against the User class
(req, res) => {
console.info(
Got user:, req.body)
console.info(user.hello():, req.body.hello())
res.send(req.body)
}
)
`$3
bash
curl -X POST \
http://localhost:1337/user \
-H 'Content-Type: application/json' \
-d '{"email":"bob@bob.com"}'
`$3
bash
curl -X POST \
http://localhost:1337/user \
-H 'Content-Type: application/json' \
-d '{"email":"NOTANEMAIL"}'
`The
method takes two arguments:
1. [REQUIRED] Class to validate (using class-validator decorators)
2. [OPTIONAL] Custom error handler: (err:{}, req, res, next) => void`