如何验证 json 对象字段是否与 nodeJS tv4 验证库相等？

Question

I'm writing code for validation of json request for user creation method. Validator have to check whether the email field is equal to field confirmEmail. Request example:

{
     "firstName":"Homer",
     "lastName":"Simpson", 
     "email":"test1234@fox.com",
     "confirmEmail":"test1234@fox.com",
     ...
}

I'm using the tv4 schema validation lib. The goal is to write a schema to validate equality between email and confirmEmail fields.

Of course I can check the those fields in request directly but I'd use it as last resort in case schema validation will not work.

Answer 1

You can not test equality of values between properties with json-schema. Json-schema is used to validate json structure.

You can test that those fields exist and that they are correct emails through regex. You could even test that they belong to a set of predefined values in an enumeration. But nothing else.

Answer 2

In my project, I am using jpv module

const jpv = require('jpv');

const pattern = {
     "firstName" : /.+/,
     "email" : "[email]",
     ...
};

const isVaild =  jpv.validate(obj, pattern)

Answer 3

jpv.validate(data, messageSchema))