LukeMathWalker/zero-to-production
Zero To Production
This project is a reference implementation of a production-ready backend API built with Rust and the Actix-Web framework. It serves as a codebase demonstrating the development of a newsletter subscription service, encompassing the management of subscriber sign-ups, email confirmations, and campaign delivery.
The project highlights a layered architecture that separates concerns into handler, service, and repository layers. It utilizes an actor-based concurrency model for handling HTTP requests and employs trait-based abstractions to decouple business logic from external dependencies, such as email service providers.
The implementation features a PostgreSQL backend using an asynchronous database driver with compile-time SQL query validation and connection pooling. It includes a comprehensive integration test suite that uses isolated database instances for each test and implements environment-based configuration for deployment across different stages.
Features
- Newsletter Platforms - Provides a full backend system for managing email subscriber lists, sign-ups, and campaign delivery.
- Actix-Web Applications - Implements a production-ready backend API using the Actix-Web framework.
- Email Campaign Managers - Delivers newsletter content to subscriber lists through integrated email service providers.
- Newsletter Management APIs - Provides a backend API for managing newsletter subscriber sign-ups, confirmations, and campaign delivery.
- Asynchronous Database Drivers - Utilizes an asynchronous Rust driver for non-blocking communication with the PostgreSQL backend.
- Relational Database Backends - Uses PostgreSQL as the primary relational database for persisting subscriber and application state.
- PostgreSQL Integrations - Integrates Rust with PostgreSQL using SQLx for asynchronous data persistence.
- Service Layers - Implements a service layer to decouple business logic from HTTP handlers and database repositories.
- Layered Architectures - Organizes the application into distinct handler, service, and repository layers to separate concerns.
- Rust Web Frameworks - Builds a production-ready backend API using the Rust programming language.
- Backend Service Architectures - Structures the web service using Actix-Web with a layered approach to handlers and services.
- Subscriber Verification Workflows - Handles the complete subscriber workflow, including sign-up and email confirmation processes.
- PostgreSQL Pool Managers - Provides specialized connection pooling for asynchronous PostgreSQL database connections.
- Compile-Time Validated Backends - Integrates a PostgreSQL backend with SQLx for asynchronous connection pooling and compile-time SQL query validation.
- Database Integration Testing - Utilizes dedicated, isolated database instances to validate end-to-end API behavior during integration testing.
- Connection Pooling - Maintains a cache of open database connections to optimize concurrent request handling.
- Production Environment Configurations - Manages application settings specifically tuned for stability and performance in production environments.
- Actor-Based Concurrency - Implements a concurrency model using isolated actors for processing asynchronous HTTP requests.
- Environment Variable-Based Configuration - Injects application settings via environment variables and files for multi-stage deployment.
- Trait-Based Service Abstractions - Uses Rust traits to define generic interfaces for external services, allowing easy implementation swapping.
- API Testing - Includes automated tests to verify the correctness and error handling of HTTP API endpoints.
- Integration Test Suites - Ships a comprehensive integration test suite using HTTP client assertions and database state verification.
- Compile-Time Query Validation - Implements compile-time validation of SQL queries against the actual database schema.
- End-to-End Testing - Implements automated test suites that validate API behavior using isolated database instances.
- Isolated Database Tests - Runs end-to-end API tests against dedicated per-test database instances to prevent state leakage.
- SQL Query Validators - Verifies SQL queries against the live database schema during compilation to catch errors early.
- Educational Resources - Source code for a comprehensive backend development book.
- Books - Listed in the “Books” section of the Rust Learning awesome list.
