express validator types code example
Example: express validator typescript
import { Request } from 'express'
import { check, validationResult, ValidationError, ValidationChain, Result } from 'express-validator'
export const expressValidator = (req: Request): ValidationError[] => {
const errors: Result<ValidationError> = validationResult(req)
const messages: ValidationError[] = []
if (!errors.isEmpty()) {
for (const i of errors.array()) {
messages.push(i)
}
}
return messages
}
export const registerValidator = (): ValidationChain[] => [
check('email').isEmpty().withMessage('email is required'),
check('email').isEmail().withMessage('email is not valid'),
check('password').isEmpty().withMessage('password is required'),
check('password').isLength({ min: 8 }).withMessage('password must be at least 8 characters')
]
export const loginValidator = (): ValidationChain[] => [
check('email').notEmpty().withMessage('email is required'),
check('email').isEmail().withMessage('email is not valid'),
check('password').notEmpty().withMessage('pasword is required')
]
export const emailValidator = (): ValidationChain[] => [
check('email').notEmpty().withMessage('email is required'),
check('email').isEmail().withMessage('email is not valid')
]
export const tokenValidator = (): ValidationChain[] => [
check('id').notEmpty().withMessage('token is required'),
check('id').isBase64().withMessage('token is not valid')
]