Checking the JSON structure coming from the client to Node.JS

Question

JavaScript

There was a task of checking the incoming JSON from the client on node.js. I have implemented a simple function:

json = 
  key: 'value'
  sub:
    key: 'value'
  extra: 'value'
check = expect json, {key: yes, sub: {key: yes}}
console.log check # true

Function code on Gist .

How do you do these checks?

Answer 1

To solve your problem, there is already a ready-made json-gate module .
Used it - works great. Provides many useful features like optional values, list of allowed values ​​and other validators.

Answer 2

And I use https://github.com/zaggino/z-schema