Joi: "tel" 不允许为空

Question

即使 tel 设置为可选，Joi 仍返回以下错误。我们如何解决这个问题？

谢谢。

Error: Joi Failed: ValidationError: child "tel" fails because ["tel" is not allowed to be empty]

//Define Joi schema
const schema = {
    email: Joi.string().required().email({
        errorLevel: 64,
        minDomainAtoms: 2 
    }).min(6),
    tel: Joi.string().optional().min(10).max(10),
    password: Joi.string().required().min(8).max(64)
}

//Check inputs
const { error, value } = Joi.validate({ 
    email: args.email, 
    tel: tel, 
    password: args.password 
}, schema)

Answer 1

...empty strings are not allowed by default and must be enabled with allow(''). However, if you want to specify a default value in case of empty string you have to use a different pattern: Joi.string().empty('').default('default value'). This tells Joi that the empty string should be considered as an empty value (instead of invalid) and which value to use as default.

参考：Joi v10.6.0 Documetations

你的情况：

tel: Joi.string().optional().allow('').min(10).max(10)

Joi: "tel" 不允许为空

Joi: "tel" is not allowed to be empty

javascript

validation

node.js

joi