vfyjs is a powerful and flexible JavaScript library designed to streamline data validation, string manipulation, and error handling in your projects. Whether you're working with user input, configuration data, or API responses, vfyjs provides a comprehensive set of utilities to ensure data integrity and enhance code reliability.
Data validation, string manipulation, and error handling are fundamental aspects of software development. vfyjs aims to simplify these tasks, allowing developers to focus on building robust applications without compromising on data integrity.
After installing the package, you can import it into your Node.js application. Below is an example demonstrating how to use vfyjs for password validation:
const vfyjs = require("vfyjs");
// Example usage
const data = "123!#@ScsA";
const validationResult = vfyjs.isPassword(data);
console.log(validationResult);The isPassword function checks whether the provided string meets the criteria for a valid password. Adjust the password variable with your actual password data for validation.
To utilize vfyjs in a browser environment, include the vfyjs.bundle.js script in your HTML file:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Your Webpage</title>
</head>
<body>
<!-- Include vfyjs script -->
<script src="path/to/vfyjs.bundle.js"></script>
<script>
// Example usage in browser
const data = "123!#@ScsA";
const validationResult = vfyjs.isPassword(data);
console.log(validationResult);
</script>
</body>
</html>Ensure to replace "path/to/vfyjs.bundle.js" with the correct path relative to your HTML file.
- Colors: Validate various color formats, including hex, name, RGB, RGBA, and CssVarHwb. Configuration
- Links: Detect and validate HTTP or HTTPS links. Configuration
- Global Configuration: Set default options for username and password validation. Configuration
- Usernames: Validate usernames with customizable criteria. Configuration
- Passwords: Strong password detection with customization options. Configuration
- Emails: Recognize and validate email addresses. Configuration
- Custom Validation Functions: Validate various aspects of a string input. Configuration
Request validation is a crucial aspect of web development, ensuring that the data sent to your server meets specific criteria before processing it further. The RequestValidator class provided by VfyJS simplifies this process by offering a comprehensive set of validation methods tailored for Node.js applications.
- Flexible Validation: Define rules for each field in the request data to ensure its validity.
- Custom Error Messages: Provide custom error messages for individual fields to improve clarity in error reporting.
- Wide Range of Validators: Choose from a variety of built-in validators covering common validation scenarios.
- Custom Validators: Define custom validators to address specific validation requirements unique to your application.
Consider a scenario where you have an endpoint /signup in your Express application to handle user registrations. You want to ensure that the incoming data for username, password, and email fields adheres to certain criteria before processing the signup request.
const express = require('express');
const {RequestValidator} = require('vfyjs');
const app = express();
app.use(express.json());
app.post('/signup', (req, res) => {
const validator = new RequestValidator(req.body);
const rules = {
username: 'string|alphanumeric|min:5|max:20',
password: 'string|min:8',
email: 'email',
};
const errors = validator.validate(rules);
if (Object.keys(errors).length === 0) {
// Data is valid, proceed with signup
res.status(200).json({ message: 'Signup successful!' });
} else {
// Validation errors, return error response
res.status(400).json({ errors });
}
});
const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
console.log(`Server is running on port ${PORT}`);
});In this example, when a POST request is made to /signup endpoint with JSON data containing username, password, and email fields, the RequestValidator class is utilized to validate the request body against specified rules. If there are validation errors, the server responds with a 400 status code and the error messages; otherwise, it responds with a 200 status code indicating successful signup.
Install vfyjs using npm:
npm install vfyjsVfyJS is released under the MIT License. For more information, see the LICENSE file.
- GitHub Organization: VfyJS
- Main Repository: VfyJS Repository
- npm Package: VfyJS on npm
If you have any feedback, suggestions, or feature requests for VfyJS, we'd love to hear from you! Your input is valuable in improving the library and making it more useful for the community.
- Feedback: Share your thoughts on your experience with VfyJS.
- Feature Requests: Let us know if there are specific features you'd like to see in future releases.
- Suggestions: If you have ideas for improvement or alternative approaches, feel free to suggest them.
- Criticism: Constructive criticism helps us identify areas for enhancement.
For open discussions, questions, and community interactions, we encourage you to visit the VfyJS Discussions section on GitHub. This is the ideal space for:
- Asking questions about how to use VfyJS effectively.
- Sharing your experiences and best practices with the community.
- Discussing potential features or improvements.
- Providing feedback and suggestions.
Feel free to start a new discussion thread or participate in existing conversations. The Discussions section is a collaborative space where the VfyJS community can come together, learn from each other, and contribute to the growth of the library.
I look forward to seeing you in the VfyJS Discussions area!
I appreciate your support and involvement in the development of VfyJS!