Documentation

Build APIs at Warp Speed

Complete guide to building production-ready backends with FastAPI and NestJS using RapidKit's powerful CLI and module system.

Quick Start CLI Commands Modules Structure

Quick Start

Get your project running in under 2 minutes

Choose Your Framework

FastAPI

High-performance Python API framework

Choose Installation Method

NPM / Node.js

Easiest

Quick start for demos and prototypes

Zero installationCross-platformQuick demos

Requirements

Node.js 18+
npm or yarn

Installation Steps for FastAPI

1. Create your project

$npx rapidkit my-api --template fastapi

2. Navigate to project

$cd my-api

3. Install dependencies

$rapidkit init

4. Start development server

$rapidkit dev

Your FastAPI API is ready!

Visit http://localhost:8000 to see your API. Swagger docs at /docs

CLI Commands

40+ powerful commands at your fingertips

rapidkit create

Create a new project with interactive wizard

rapidkit create project fastapi.standard my-api

rapidkit add

Add modules to your project

rapidkit add module auth

rapidkit dev

Start development server with hot-reload

rapidkit dev --port 3000

rapidkit build

Build for production

rapidkit build --docker

rapidkit test

Run tests with coverage

rapidkit test --coverage

rapidkit list

List available templates and modules

rapidkit list modules

Module System

Production-ready components for your project

🔐

Authentication

JWT, OAuth2, 2FA

🗄️

Database

ORM, Migrations, Pooling

⚡

API

Rate Limit, Validation, Cache

📊

Monitoring

Logging, Metrics, Traces

🐳

Deployment

Docker, K8s, CI/CD

🧪

Testing

Unit, Integration, E2E

Browse 27+ Modules

Adding Modules to Your Project

Add authentication module

$rapidkit add module auth

Add caching module

$rapidkit add module cache

Add observability module

$rapidkit add module observability

Project Structure

Clean Architecture with DDD principles

FastAPI Project Structure

my-api/
├── rapidkit              # CLI script (rapidkit dev, init, test...)
├── .rapidkit/            # RapidKit config & CLI module
│   ├── cli.py            # CLI commands implementation
│   ├── project.json      # Project metadata
│   └── activate          # Optional: manual PATH activation
├── src/
│   ├── main.py           # FastAPI application entry
│   ├── cli.py            # CLI commands
│   ├── routing/          # API routes
│   │   └── health.py     # Health check endpoint
│   └── modules/          # Feature modules
├── tests/                # Test files
├── pyproject.toml        # Poetry dependencies
├── Makefile              # Make shortcuts
└── README.md

Dependency Inversion

Core depends on abstractions

Modularity

Self-contained modules

Testability

Business logic isolated

Ready to Build?

Start building your next project with RapidKit

Browse Modules

27+ production-ready

View Source

GitHub repository

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