Building a Simple To-Do API with Rocket and Diesel in Rust

Here is a concise version of the article:

Building a To-Do API with Rocket and Diesel

In this tutorial, we will build a simple to-do API using Rocket and Diesel. We will cover setting up the project, creating migrations with Diesel, writing the API logic in Rust, and routing the API with Rocket.

Prerequisites:

• Familiarity with Rust programming language and Cargo build system
• Basic understanding of database connections
• Ability to start a development project in your preferred environment

Setting Up the Project:

1. Create a new project using Cargo: cargo new todo_api
2. Add dependencies to Cargo.toml: rocket = "0.5.0-rc.1", diesel = { version = "1.4.7", features = ["sqlite"] }
3. Install Diesel CLI: cargo install diesel_cli --no-default-features --features sqlite

Creating Migrations with Diesel:

1. Run diesel setup to create a migrations directory
2. Create a new migration: diesel migration generate create_tasks
3. Write SQL statements for creating and dropping tasks table in up.sql and down.sql files
4. Apply migration: diesel migration run

Writing API Logic in Rust:

1. Create a new module: database.rs
2. Define database connection and schema
3. Write functions for creating and getting tasks

Routing API with Rocket:

1. Import Rocket and define routes
2. Use rocket::ignite() to start the server

Conclusion:

In this tutorial, we demonstrated how to build a simple to-do API using Rocket and Diesel. We covered setting up the project, creating migrations with Diesel, writing API logic in Rust, and routing the API with Rocket.