JSON 数据验证失败

Question

I am failing a JSON data validation test, where I am supposed to create a JSON object persons with with properties Name, EmployeeID, Experience, Company and Designation and access it using loop. I am just learning JSON and I think the problem is that it requires knowledge of nodejs too here is the json file (data.json)

'{"Name":"someName","EmployeeID":123,"Experience":123,"Company":"somecompany","Designation":"someDesignation"}'

Here is the js file:

let jsonData = require('./data.json');
let persons=JSON.parse('./data.json', jsonData);
for(i in persons){
    console.log(persons.i);
}

and here is the validation file:

const Joi = require('joi');
const fss =require('fs');

const schema = Joi.object().keys({
    Name: Joi.string().required(),
    EmployeeID: Joi.number().required(),
    Experience: Joi.number().required(),
    Company: Joi.string().required(),
    Designation: Joi.string().required()
});

const personSchema=Joi.object().keys({
  persons:schema.required()
}).required();

var data;

try{
 data = require("./data.json");    
}catch(e)
{
 data={};
}

var XMLWriter = require('xml-writer');
    xw = new XMLWriter;




// You can also pass a callback which will be called synchronously with the validation result.
Joi.validate(data, personSchema, function (err, value) {
if(err==null)
{   
  console.log("JSON data is valid, Status: Passed");
}else{
    console.log("JSON data is invalid. Status: failed")
}

});

I am getting JSON data is invalid. Status: failed

Answer 1

From the description of what you need to create, it seems you need an Array of those objects

So, the JSON should be

[{"Name":"someName","EmployeeID":123,"Experience":123,"Company":"somecompany","Designation":"someDesignation"}]

Then the "JS" would be

let persons=require('./data.json');
for(let i in persons){
    console.log(persons[i]);
}

And the validator would be

const Joi = require('joi');
const fss = require('fs');

const schema = Joi.object().keys({
        Name: Joi.string().required(),
        EmployeeID: Joi.number().required(),
        Experience: Joi.number().required(),
        Company: Joi.string().required(),
        Designation: Joi.string().required()
    });

const personSchema = Joi.array().items(schema.required()).required();

var data;

try {
    data = require("./data.json");
} catch (e) {
    data = [];
}

var XMLWriter = require('xml-writer');
xw = new XMLWriter;

// You can also pass a callback which will be called synchronously with the validation result.
Joi.validate(data, personSchema, function (err, value) {
    if (err == null) {
        console.log("JSON data is valid, Status: Passed");
    } else {
        console.log(err, "JSON data is invalid. Status: failed")
    }

});

---

if the validator file should be left untouched, then the JSON needs to be as follows

{"persons":{"Name":"someName","EmployeeID":123,"Experience":123,"Company":"somecompany","Designation":"someDesignation"}}