Firestore Client Rust

This is a Rust command-line interface (CLI) application designed for basic interaction with Google Cloud Firestore. It provides a simple way to manage product data within a Firestore collection named "inventory".

Features

• Seed Database: Populate your Firestore "inventory" collection with sample product data.
• List Products: Retrieve and display all products currently stored in the "inventory" collection.
• Get Product by ID: Fetch a specific product from the "inventory" collection using its unique ID.

Technologies Used

• Rust: The programming language.
• Google Cloud Firestore: NoSQL document database.
• firestore crate: Rust client library for Firestore.
• tokio: Asynchronous runtime for Rust.
• serde: Serialization and deserialization framework.
• clap: Command-line argument parser.
• anyhow: Flexible error handling.
• dotenv: Loads environment variables from a .env file.
• tracing: Application-level tracing for observability.

Setup and Usage

Prerequisites

• Rust and Cargo installed.
• Google Cloud Project with Firestore enabled.
• Service Account Key for Firestore authentication (usually handled by gcloud auth application-default login or GOOGLE_APPLICATION_CREDENTIALS environment variable).

Environment Variables

Create a .env file in the project root with your Google Cloud Project ID:

PROJECT_ID=your-gcp-project-id

Building the Application

cargo build --release

Running Commands

Seed the database

cargo run --release seed

List all products

cargo run --release list

Get a product by ID

Replace <product_id> with the actual ID of a product.

cargo run --release get <product_id>

Project Structure

• src/main.rs: Contains the main application logic, including product data structures, Firestore interaction functions, and CLI command handling.
• Cargo.toml: Defines project dependencies and metadata.
• Cargo.lock: Records the exact versions of dependencies.

License

This project is licensed under the MIT OR Apache-2.0 License. See the Cargo.toml file for more details.