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CLI Todo App

A command-line todo application in Rust with JSON file persistence — learning Rust fundamentals through a practical CLI tool

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Rust Clap Serde JSON CLI

Project Overview

A command-line todo application in Rust with JSON file persistence — learning Rust fundamentals through a practical CLI tool

README.md
README.md

Project Overview

A simple but complete command-line todo application built in Rust. Features task creation, completion tracking, and JSON file persistence using Clap for argument parsing and Serde for serialization.

Usage

cargo run -- add "Buy groceries"
cargo run -- list
cargo run -- complete 0

Key Features

  • Add, list, and complete tasks from the command line
  • JSON file persistence between sessions
  • Clap-based CLI with derive macros
  • 0-based task indexing

Learning Outcomes

  • Clap derive macros for CLI argument parsing
  • File I/O and JSON persistence with Serde
  • Rust struct design and enum patterns
  • Error handling for file operations
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