Building Web Apps with Rust using the Rocket Framework

Building Web Apps with Rust using the Rocket Framework

We’ll introduce Rust for the web by building a simple web application. With web frameworks like Rocket, developers can use Rust to build fast and secure web applications with very little boilerplate code.

With web frameworks like Rocket, developers can use Rust to build fast and secure web applications with very little boilerplate code.

Introduction

Rust is gradually becoming the language of choice for many developers who want to build efficient and reliable applications more quickly while still maintaining flexibility and low-level control. With web frameworks like Rocket, web developers can use Rust to build fast and secure web applications.

In this article, we’ll introduce Rust for the web by building a simple web application. While this will be a step-by-step guide on using the Rocket framework to build type-safe, fast, and reliable web applications, this article also assumes that you have a basic understanding of Rust. If you don’t, the book The Rust Programming Language is a great resource for familiarizing yourself with the language.

Getting started with the Rocket web framework

Before we get started, let’s confirm that we have rustup installed on our machine by running the following command on our terminal:

rustup --version

If the above command results in an error, click here to see rustup installation instructions. Rustup installation sets up Rust and Cargo, Rust’s package manager on our local computer.

Setting up our app

With rustup installed, we can use Cargo to create a new Rust project. Let’s run the following command on our terminal:

cargo new rocket-web --bin

This will create a new Rust app named rocket-web. The --bin flag tells Cargo to generate this as a binary-based project.

Next, we’ll navigate to the new project directory from our terminal and configure Rust nightly as our project toolchain:

cd rocket-web
rustup override set nightly

Rocket uses unstable features of Rust, like its syntax extensions. This is why we set up the nightly version of Rust as our project toolchain. Let’s navigate to the ./cargo.toml file in our root directory and add rocket as a dependency:

[dependencies]
rocket = "0.4.5"

To use Rocket in our project, let’s import it in the ./src/main.rs file:

#[macro_use] extern crate rocket;

This imports the macros from the rocket crate. Alternatively, we can use the following line:

use rocket::*;

Next, we’ll use the #![feature()] flag to enable the unstable _decl_macro_ feature for our Rocket project. We’ll need it when creating routes for our web app. Just before the use rocket::* statement, let’s add this line:

#![feature(decl_macro)]

rust web-development developer

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