Skip to content

nuxodin/jema.js

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 

History

70 Commits
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

jema.js

JSON Schema validator for deno and browsers

JSON Schema is the leading standard for validating and describing data. It is platform-independent and simplifies the automation of validation, documentation, and processing of data.

Features

🚀 Performant
🕊️ Lightweight (< 4kb brotli)
🤝 Works in the Browser and deno (no node.js at the moment)
📦 No dependencies
🆗 JSONSchema draft-2020-12 (only this)

Basic ussage

const schema = new Schema({
    type: 'string',
    minLength: 3,
    pattern: '^[a-zA-Z]+$',
});
await schema.deref(); // Dereference remote schemas

schema.validate('Li') // false
schema.validate('Liam') // true
schema.validate('Li-Am') // false

Install

import {Schema} from 'https://cdn.jsdelivr.net/gh/nuxodin/[email protected]/schema.min.js';

Debugging

// errors
const errors = schema.errors('L-')
for (const error of errors) {
    console.log(error.message)
    // "L-" does not match minLength:3
    // "L-" does not match pattern:^[a-zA-Z]+$
}

// schema validation
const schema = new Schema({
    type: 'stringg',
});
await schema.schemaErrors(); 

Todo

  • Better error messages (with schema location, conforming to the JSON Schema spec)
  • Fix a few bugs in the test suite: link mainly
    • "$dynamicRef"
    • "$vocabulary"
    • and some minor "format" errors

If someone wants to help, please do so.

About

  • MIT License, Copyright (c) 2022 (like all repositories in this organization)
  • Suggestions, ideas, finding bugs and making pull requests make us very happy. ♥