CODEWITHSUNDEEP
node.jsjsonschemajson-schema-validator
Raul Nussbaum
Raul Nussbaum

Reputation: 79

NodeJS JSON Schema Validation not working

I'm a complete newbie to JSON Schema Validator, but I think is very powerful. However, I just can't validate one JSON.

This is my Schema

 {
  title: "Example  Schema",
  type: "object",
  properties: {
    original_image:{
      type: "object",
      properties: {
        temp_id: {type: "string"},
        url: {type: "string"},
        scale:{
          type: "object",
          properties:{
            new_width: {type: "number"},
            new_height: {type: "number"}
          },
          required:["new_width","new_height"]
        }
      },
      required:["url","temp_id","scale"]
    }
  },
  required:["image"]
}

And this is the actual JSON:

{
  "original_image": {
    "temp_id": "this is my id",
    "scale": {
      "new_width": null,
      "new_height": 329
    }
  }
}

So as you can see the "url" property from "original_image" is not there, but the validation returns true! And, for "new_width" I set the value to null... and again passes validation, so I don't know what I'm doing wrong.

Upvotes: 1

Views: 2273

Answers (2)

basav
basav

Reputation: 1495

If you put your condition as required:["url","temp_id","scale"] , then, all three properties are required in the payload, but url seems to be missing in your payload. If you want url to be optional, then, dont put it in the required constraint. The validator also gives back an error message.It returns missing parameters/properties if that is the case.

Upvotes: 1

Divyanshu Maithani
Divyanshu Maithani

Reputation: 15016

It seems to be working fine. The console logs errors correctly. This is my index.js

var Validator = require('jsonschema').Validator;
var v = new Validator();
var instance = {
  "original_image": {
    "temp_id": "this is my id",
    "scale": {
      "new_width": null,
      "new_height": 329
    }
  }
};
var schema = {
  title: "Example  Schema",
  type: "object",
  properties: {
    original_image:{
      type: "object",
      properties: {
        temp_id: {type: "string"},
        url: {type: "string"},
        scale:{
          type: "object",
          properties:{
            new_width: {type: "number"},
            new_height: {type: "number"}
          },
          required:["new_width","new_height"]
        }
      },
      required:["url","temp_id","scale"]
    }
  },
  required:["image"]
};
console.log(v.validate(instance, schema));

Upvotes: 2

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