Swift Vapor Cheat Sheet

This content was generated with the assistance of AI and should be verified against the official documentation before being relied on in production.

The reference material consulted while preparing these pages is listed in the section bibliography.

A single-page, colour-coded summary of server-side Swift with Vapor, written against Vapor 4.122.2, Fluent 4.13 and Leaf 4.5 on Swift 6.4 (checked 2026-10-17) — the SwiftNIO and Vapor stack with a request’s life, the Swiftly, Toolbox and swift run App command map, the Package.swift, entrypoint.swift and configure.swift skeleton, the Swift 6 concurrency rules for Vapor, routing with RouteCollection, Request, Response, Content and validation, Abort, AsyncMiddleware and the built-ins, the Fluent property wrappers with a model that returns a DTO, migrations, queries, transactions and raw SQL, Leaf tags, HTML DSLs, sessions and Redis, an authentication chooser with req.auth, JWT, req.password, authorization and a security checklist, WebSocket, SSE and multipart skeletons, queues, scheduled jobs, APNs, email, custom commands and req.client, the OpenAPI generator workflow and shared DTOs for iOS clients, VaporTesting, logging, tracing and metrics, the Dockerfile stages with a deployment checklist, performance, microservices and the ecosystem, and a strip of what changed since older tutorials including the Vapor 5 beta — handy for quick memorization or as a downloadable PDF desk reference.

For the full explanation, every option, and additional examples, see the dedicated pages:

Start here — Swift Vapor.

Foundations — Introduction & Architecture, Installation & Toolchain, Getting Started, Project Structure & SwiftPM, Application Lifecycle & Entrypoint and Swift Concurrency in Vapor.

Routing and HTTP — Routing, Controllers & Route Collections, Requests & Responses, Content & Codable, Validation, Error Handling, Middleware, Static Files & File I/O, File Uploads & Streaming, HTTP Client, Configuration & Environment, Services, Storage & Dependency Injection and Server Configuration.

Data — Fluent Overview & Drivers, Fluent Models, Fluent Relations, Migrations & Schema, Fluent Queries & Pagination, Transactions, Model Middleware & Soft Delete, SQLKit & Raw SQL, MongoDB and Redis & Caching.

Views, web apps and real-time — Leaf Templates, Leaf Custom Tags & HTML DSLs, Server-Rendered Web Apps & Forms, Sessions & Cookies, WebSockets and Server-Sent Events.

Security — Authentication, Fluent Authentication & Tokens, Session Authentication & Web Login, JSON Web Tokens (JWT), Authorization, OAuth & Sign in with Apple, Passwords & Crypto and Security Hardening.

APIs, integration and background work — API Design, Versioning & DTOs, OpenAPI with swift-openapi-generator, Queues & Background Jobs, Scheduled Jobs, APNs Push Notifications, Sending Email, Commands and Full-Stack Swift with iOS Clients.

Operations — Testing, Logging, Tracing, Metrics & OpenTelemetry, Deployment with Docker, Deployment Targets, Production & Performance and Microservices & an API Gateway.

Reference — What’s New, Upgrading & Vapor 5 and Ecosystem & Framework Comparison.

Download the Swift Vapor Cheat Sheet (PDF)

References

The PDF summarizes the official documentation; each source is cited in full on the page listed above that covers it, and in the section bibliography.