validate-and-sanitize

A lightweight utility for validating and sanitizing user input. 🚀

🔥 Features

✅ Validate required fields
✅ Type-checking (string, number, etc.)
✅ Remove SQL injection patterns
✅ Trim spaces from string inputs
✅ Option to sanitize all fields

📦 Installation

Install via npm:

npm install validate-and-sanitize

📢 Supports Both ESM and CommonJS

This library works with both ES Modules (ESM) and CommonJS (CJS).

✅ How to Import

For ES Modules (ECMAScript)

If your project uses ES modules ("type": "module" in package.json)

🚀 Usage

Basic Example

import { validateAndSanitize } from "validate-and-sanitize";
// OR
// const { validateAndSanitize } = require("validate-and-sanitize");

const schema = {
  username: { required: true, type: "string", label: "Username" },
  email: { required: true, type: "string", label: "Email" },
  age: { type: "number", label: "Age" },
};

const inputData = {
  username: "  JohnDoe  ",
  email: "[email protected]",
  age: "25", // ❌ Incorrect type
};

const result = validateAndSanitize(inputData, schema);

console.log(result);
/*
Output:
{
  errors: ["Age must be of type number"]
}
*/

Example with Sanitization

const inputData = {
  username: "  JohnDoe  ",
  email: "[email protected]",
  bio: "Hello world! DROP TABLE users;", // ❌ Contains SQL keywords
};

const result = validateAndSanitize(inputData, schema, true);
console.log(result);
/*
Output:
{
  sanitizedData: {
    username: "JohnDoe",
    email: "[email protected]",
    bio: "Hello world! " // SQL keywords removed
  }
}
*/

📌 API Reference

validateAndSanitize(data, schema, sanitizeAll = false)

Parameters:

• data (Object) – User input data
• schema (Object) – Validation schema
• sanitizeAll (Boolean) – If true, all fields will be sanitized, including those not defined in the schema. If false, only fields defined in the schema will be sanitized. (default: false)

Returns:

• { errors: string[] } if validation fails
• { sanitizedData: Object } if successful