What is Fastify
Fastify is a high performance web framework for Node JS .designed to build APIs and web application with a focus on speed, and it is always used as an alternative of other node js framework like Express JS due to its better performance and modern features.
Key features of Fastify :-
1. High Performance :- Fastify is optimized for speed, offering a highly efficient request/response cycle. It claims to handle up to 30,000 requests per second in some scenarios.
2. Lightweight and Modular: Fastify's core is minimal, with an extensive plugin ecosystem to add features as needed.
3. JSON Schema Validation: It natively supports JSON Schema to validate request and response data, improving data consistency and reducing runtime errors.
4.Developer Friendly: It provides built-in tools like decorators, hooks, and a clean, modern API to simplify development.
5.Error Handling: Provides structured error handling for better debugging.
6.Asynchronous and Scalable: Fully asynchronous and supports modern JavaScript features like async/await.
Why Use Fastify:-
Performance: It’s one of the fastest Node.js frameworks available, making it suitable for high-traffic applications.
Scalability: Its architecture makes it easy to build scalable, modular applications.
Ease of Use: Fastify simplifies common tasks like routing, middleware, and validation, reducing boilerplate code.
Compatibility: Works seamlessly with the npm ecosystem and other Node.js libraries.
Security: Comes with built-in tools for sanitizing inputs and preventing common vulnerabilities.
Use Cases:-
1 APIs: Creating RESTful APIs and microservices.
2 Real-Time Applications: Applications that require fast and efficient request handling, such as chat applications.
3 Backend for Web Applications: Serving dynamic content for single-page applications (SPAs).
4 Prototyping: Quickly building and testing ideas due to its simplicity.
const fastify = require('fastify')({ logger: true });
// Declare a route
fastify.get('/hello', async (request, reply) => {
return { message: 'Hello, Fastify!' };
});
// Run the server
const start = async () => {
try {
await fastify.listen({ port: 3000 });
console.log('Server is running at http://localhost:3000');
} catch (err) {
fastify.log.error(err);
process.exit(1);
}
};
start();
In this example, Fastify is used to set up a simple web server with a single route. It handles requests and responses efficiently, leveraging its optimized architecture.
write your queries on comment section. hope this was helpful .