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Cover image for Rocket - The Rust Web Framework - Hello World
Francesco Ciulla
Francesco Ciulla

Posted on • Updated on

Rocket - The Rust Web Framework - Hello World

Rocket - The Rust Web Framework - Hello World

In this article, we will learn how to build a simple web application using Rocket, a web framework for Rust.

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Rocket

Rocket - The Rust Web Framework - Hello World

Rocket is a web framework for Rust that makes writing fast, secure web applications simple without sacrificing flexibility, usability, or type safety.

Rocket is type-safe, which means that many kinds of errors are caught at compile time. Rocket is also fast, with a focus on performance and speed.

Rocket is secure, with built-in support for common security vulnerabilities. Rocket is flexible, with a powerful routing system that allows you to define routes using a simple, intuitive syntax.

Rocket is also easy to use, with a clean, well-documented API that makes it easy to start.

Let's look at how to get started with Rocket and build a simple web application.

Getting Started

Create a new Rust project using Cargo, enter the project directory, and open the project in your favorite code editor.



cargo new hello-rocket
cd hello-rocket
code .


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Add the Rocket crate to your Cargo.toml file.



[dependencies]
rocket = "0.5.1"


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Then, replace the content of src/main.rs with the following code.



#[macro_use] extern crate rocket;

#[get("/")]
fn index() -> &'static str {
    "Hello, Rocket 🚀"
}

#[launch]
fn rocket() -> _ {
    rocket::build().mount("/", routes![index])
}


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Now you can run the application using the following command.



cargo run


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And you should see the following output.

Rocket - The Rust Web Framework - Hello World

Now visit http://localhost:8000 in your web browser, and you should see the following message.

Rocket - The Rust Web Framework - Hello World

That's it! You've just built a simple web application using Rocket.

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Conclusion

Rocket is a powerful web framework for Rust that makes writing fast, secure web applications simple.

In this article, we've covered the basics of Rocket and how to get started with building a simple web application.

I hope you found this article helpful! If you have any questions or comments, please leave them below.

Have fun coding with Rust.

Francesco

Top comments (6)

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chasm profile image
Charles F. Munat • Edited

How can you write an entire article about Rocket and not include an obvious link to the Rocket website?

It's rocket.rs/

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francescoxx profile image
Francesco Ciulla

added, thanks for letting me know.

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fyodorio profile image
Fyodor

FWIW, building a rocket with rust is a bad idea… not sure how this metaphor found its place anyways…

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francescoxx profile image
Francesco Ciulla

lol

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russoue profile image
Mohammad Husain

Still hasn’t reached 1.0, wow! How old is it again?

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francescoxx profile image
Francesco Ciulla

I think the first version has been released in 2016. It has very high standads, so it might still take a while and that's fine