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What is API Master?

API Master is a modular, type-safe Express.js backend designed for handling file uploads with ease. Built with TypeScript and industry-standard libraries, it provides a robust foundation for building file management APIs.

Type-Safe

Full TypeScript support for enhanced developer experience and reduced runtime errors

Production Ready

CORS configuration, error handling, and optimized file storage out of the box

Flexible Storage

Multer-powered file uploads with customizable storage strategies

Modular Architecture

Clean separation of routes, controllers, and middleware for maintainability

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Key Features

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File Upload Management

API Master uses Multer for efficient multipart/form-data handling, with automatic file naming, storage management, and public URL generation.

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CORS Support

Pre-configured CORS middleware allows cross-origin requests with customizable origins, methods, and headers.

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Static File Serving

Uploaded files are automatically served through a dedicated /uploads endpoint, making them instantly accessible via public URLs.

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TypeScript Architecture

Fully typed API with Express.js type definitions ensuring compile-time safety and excellent IDE support.

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Architecture Overview

API Master follows a modular MVC-inspired architecture: 
api-master/
├── app.ts                    # Application entry point
├── src/
│   ├── controllers/          # Business logic handlers
│   │   └── userController.ts
│   └── routes/              # Route definitions
│       └── userRoutes.ts
├── uploads/                 # File storage directory
└── dist/                    # Compiled JavaScript output
The application uses a clean separation of concerns with controllers handling business logic and routes managing HTTP endpoints and middleware.

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Technology Stack

  • Express.js - Fast, unopinionated web framework
  • TypeScript - Type safety and modern JavaScript features
  • Multer - Multipart/form-data file upload handling
  • CORS - Cross-origin resource sharing middleware
  • Node.js - Runtime environment

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Use Cases

API Master is perfect for:
  • Document Management Systems - Handle user document uploads with automatic storage
  • Image Upload Services - Process and serve user-uploaded images
  • File Sharing Platforms - Build secure file upload and retrieval systems
  • Content Management - Manage media assets for CMS applications
  • API Backends - Serve as a file upload microservice for larger applications

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What You’ll Learn

This documentation will guide you through:

Quick Start

Get API Master running in under 5 minutes

Configuration

Customize CORS, storage, and server settings

API Reference

Complete endpoint documentation and examples

Deployment

Deploy to production with best practices

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Next Steps

1

Get Started

Follow the Quickstart Guide to set up API Master locally
2

Explore the API

Learn about available endpoints in the API Reference
3

Customize

Configure CORS, storage, and other settings in the Configuration section
4

Deploy

Take your API to production with our Deployment Guide
API Master is designed to be extended. The modular architecture makes it easy to add new routes, controllers, and middleware as your application grows.

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