JSON Schema validation example in Node.JS

README.md

test json schema validation in Node.JS

Setup Package

$ npm i jsonschema --save

Test/Play:

$ node ./v.js

References:

• https://www.npmjs.com/package/jsonschema

schema-example.json

{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "InventoryItem",
  "type": "object",
  "properties": {
    "name": {
      "type": "string"
    },
    "price": {
      "type": "number",
      "minimum": 0
    },
    "sku": {
      "description": "Stock Keeping Unit",
      "type": "integer"
    }
  },
  "required": ["name", "price"]
}

v.js

var Validator = require('jsonschema').Validator;
var v = new Validator();

var schema = require('./schema-example.json');
var object;

object = {name: "eggs", price: 21.47};
console.log(v.validate(object, schema));

console.log("========================================================================");

object = 4;
console.log(v.validate(object, schema));

Hey man how can i check that data is validated correctly or data is in correct format whether it returns true or false ???

Hey man how can i check that data is validated correctly or data is in correct format whether it returns true or false ???

const res = v.validate(object, schema);
console.log(res.errors.length > 0);