AI-Powered Coding Assistants: A Comparative Analysis of Copilot and Bito(Part 2)
Published: 2023-11-13 07:13:11

Evaluating Bito and GitHub Copilot for Developer Productivity: A Deep Dive into Code Suggestions, Secure and Performant Web Development — particularly emphasizing Security and Performance checks.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/c64b0khywmt29p2b5ipc.jpg)

In my [first article,](https://dev.to/ananddas/deep-dive-into-ai-powered-coding-assistants-a-comparative-analysis-of-copilot-and-bito-part-1-4ek7) I did an analysis of how AI code assistant tools like Copilot and Bito perform complex coding tasks. Building on that foundation, this article shifts its lens toward how these tools optimize code — particularly emphasizing security and performance checks.

**Scenario 2: Security and Performance Checks**

Linked Features: Security Scans, Performance Optimization, Error Detection, and Correction.
Objective: Security and performance are paramount in today’s digital age. This scenario will present code with potential vulnerabilities and performance issues. We’ll assess how proactively each tool identifies these concerns, offers remediation suggestions, and optimizes code for peak performance.

**Security and Performance Checks**
Coding Task: Building a secure and performant web application.

Detailed Prompt: “Assist me in building a secure and performant web application. I need suggestions for secure coding practices and performance optimizations. Identify any potential security vulnerabilities suggest fixes, and recommend performance improvements like caching.”
**Bito:**
{% embed https://youtu.be/JDGtP6YVyi4 %}

**Input:**

This is the code of a basic web application. make changes to this code to make it a secure and performant web application. Also, provide details of what changes you made to make it more secure and performant.

```
// Import required modules
const express = require('express');
// Create an Express application
const app = express();
// Define a route
app.get('/', (req, res) => {
res.send('Hello World!');
});
// Start the server
const port = 3000;
app.listen(port, () => {
console.log(`Server running on port ${port}`);
});
```
Output:

_To make the provided code more secure and performant, we can make the following changes:

1. Use Helmet middleware: Helmet is an Express middleware that adds various HTTP headers to enhance security. Install it using npm install helmet .

Update the code as follows:_

```
const express = require('express');
const helmet = require('helmet');
const app = express();
app.use(helmet());
app.get('/', (req, res) => {
res.send('Hello World!');
});
const port = 3000;
app.listen(port, () => {
console.log(`Server running on port ${port}`);
});
```
_Helmet adds security headers like Content Security Policy (CSP), Strict-Transport-Security (HSTS), and others to protect against common web vulnerabilities.

2. Implement input validation: Validate and sanitize user input to prevent potential security vulnerabilities. For example, if you expect a query parameter name , you can validate it as follows:_

```
app.get('/', (req, res) => {
const name = req.query.name;
if (name && typeof name === 'string') {
// Use the sanitized value
res.send(`Hello, ${name}!`);
} else {
res.status(400).send('Invalid input');
}
});
```
_3. Enable HTTPS: Use HTTPS instead of HTTP to encrypt data in transit. Obtain an SSL certificate and configure your server to use it. Update the code as follows:_

```
const https = require('https');
const fs = require('fs');
const options = {
key: fs.readFileSync('path/to/private-key.pem'),
cert: fs.readFileSync('path/to/certificate.pem')
};
https.createServer(options, app).listen(port, () => {
console.log(`Server running on port ${port}`);
});
```
_4. Implement caching: Add caching headers to enable client-side caching and reduce server load. For example:_

```
app.get('/', (req, res) => {
res.setHeader('Cache-Control', 'public, max-age=3600'); // Cache for 1 hour
res.send('Hello World!');
});
```
5. Use a production-ready server: For better performance and security, consider using a production-ready server like Nginx or Apache to serve static files and proxy requests to your Express application. These changes enhance security by implementing security headers, input validation, and HTTPS. They also improve performance by enabling caching and using a production-ready server. Remember to adapt the code to your specific requirements and consult official documentation for more details on each change.

**Copilot:**
Now let's look at how the copilot performed.
{% embed https://youtu.be/dTG_MWt1Oe8 %}

Input:

```
//provide code to make this web application secure and performant
```
Output:

```
// Path: test.js
// Import required modules
const express = require('express');
const helmet = require('helmet');
const compression = require('compression');
// Create an Express application const app = express();
app.use(helmet());
app.use(compression());
// Define a route
app.get('/', (req, res) => { res.send('Hello World!'); } });
// Start the server
const port = 3000;
app.listen(port, () => { console.log(`Server running on port ${port}`); } });
```

**Comparison of Bito and Copilot:**
Now that we used both tools for a use-case. Let's explore how each of them stands when pitted against each other and evaluate their pros and cons.

**BITO**
Pros:

- Comprehensive Guidance: Bito offers a detailed walkthrough of each security and performance recommendation, ensuring developers not only know what to do but also understand why.
- Holistic Security Measures: Bito’s approach to security is thorough, addressing a wide spectrum of concerns from input validation to secure communication.
- Performance Optimizations: Bito provides actionable insights into performance enhancements, such as caching and database query optimization.
- Educational Value: Bito’s explanations serve as a mini-tutorial, beneficial for developers keen on understanding the rationale behind specific practices.
- Tailored Integration: Bito’s code suggestions are seamlessly woven into the provided code, ensuring a coherent final codebase

**Cons:**

- Lengthy Explanations: For seasoned developers, the detailed explanations might seem redundant.

**COPILOT**
**Pros:**

- Concise Code: Copilot offers a straightforward setup, which can be beneficial for quick implementations.
- Basic Security and Performance: By integrating essential middlewares like helmet and compression, Copilot ensures a foundational level of security and performance.

**Cons:**

- Lack of Depth: Copilot’s suggestions, while accurate, lack the depth and breadth that a developer might need for building robust applications.
- Missed Opportunities: Critical security concerns like input validation and session management were overlooked.
- Limited Educational Value: The focus is primarily on code delivery without much context, which might leave developers wondering about the “why” behind certain practices.

**Final Take — Relevance to Developers**
The modern web application landscape is rife with challenges, and developers are constantly in pursuit of tools that can not only simplify but also educate. For budding and mid-career developers, Bito presents a multifaceted platform that transcends mere code generation — it elucidates, empowers, and ensures developers grasp the nuances of best practices. Copilot, on the other hand, has its strengths in providing rapid, concise solutions. It’s a go-to for those seeking swift implementations without delving deep into the intricacies. Bito accentuates the “why” behind each implementation, which is crucial for developers who aim to cultivate a comprehensive understanding and not just produce code.

Bito provides educational depth and holistic security solutions, making it ideal for developers seeking comprehensive guidance. Its detailed walkthroughs ensure not just a solution but also a deeper understanding of best practices. Conversely, Copilot delivers concise code suited for quick implementations, but its brevity may overlook key security aspects, potentially leaving gaps. While Bito equips developers with a thorough defense, Copilot caters to those confident in their foundational knowledge but seeking speed in deployment.

**Conclusion**
As we assess the capabilities of Bito and Copilot within the context of security and performance checks, the former shows a nuanced approach, rich in detail and context.

Both tools undeniably bring value to the table — Copilot’s streamlined and quick suggestions are apt for certain scenarios, while Bito’s thorough explanations and actionable insights resonate with developers keen on wanting a deep understanding of their work. It’s pivotal to understand that the tool of choice should align with the developer’s immediate needs and long-term learning objectives.

Bito, with its depth, tends to be more aligned for those seeking a deeper dive into coding best practices, giving it a slight edge in this comparison. Yet, the essence remains — choose the tool that best complements your journey in the ever-evolving world of development.