# koajs/examples

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4,534 stars · 724 forks · JavaScript

## Links

- GitHub: https://github.com/koajs/examples
- awesome-repositories: https://awesome-repositories.com/repository/koajs-examples.md

## Description

This repository is a collection of reference implementations and project scaffolds for the Koa web framework. It provides a set of boilerplates and examples for building Node.js web applications, including predefined project structures with database integrations and containerization.

The project demonstrates the implementation of REST APIs and the use of HTTP middleware patterns for composing request handlers. It includes practical guides for designing structured endpoints and resource management patterns.

The provided examples cover a range of capabilities including server-side rendering, real-time data streaming via server-sent events, and web application security. These include implementations for user authentication management and protection against cross-site request forgery.

## Tags

### Web Development

- [Koa Framework Implementations](https://awesome-repositories.com/f/web-development/web-server-frameworks/koa-framework-implementations.md) — Provides a collection of reference implementations and architectures built using the Koa web framework.
- [HTTP Request Handling](https://awesome-repositories.com/f/web-development/backend-development/request-response-handling/http-request-handling.md) — Provides utilities for parsing, routing, and managing incoming HTTP requests and their associated data payloads. ([source](https://github.com/koajs/examples#readme))
- [Application Scaffolds](https://awesome-repositories.com/f/web-development/node-js-web-applications/application-scaffolds.md) — Provides predefined project structures and boilerplates for bootstrapping Node.js web servers with database and container configurations.
- [Request Data Extraction](https://awesome-repositories.com/f/web-development/request-data-extraction.md) — Implements capabilities for retrieving user input from HTTP request headers, cookies, forms, and file uploads. ([source](https://github.com/koajs/examples/blob/master/Readme.md))
- [HTTP Middleware Pipelines](https://awesome-repositories.com/f/web-development/request-middleware-pipelines/http-middleware-pipelines.md) — Demonstrates the use of middleware chains to intercept and transform HTTP requests for session management and error propagation.
- [REST API Implementations](https://awesome-repositories.com/f/web-development/rest-api-implementations.md) — Demonstrates the server-side development of structured RESTful endpoints for business logic and data exchange.
- [Resource-Based Routing](https://awesome-repositories.com/f/web-development/route-organization-patterns/resource-based-routing.md) — Organizes network endpoints using RESTful resource patterns to map HTTP verbs to specific handler functions.
- [Response Streaming](https://awesome-repositories.com/f/web-development/backend-development/request-response-handling/http-response-handling/response-streaming.md) — Enables incremental delivery of large HTTP response bodies to optimize memory usage on the server.
- [File Streaming](https://awesome-repositories.com/f/web-development/file-streaming.md) — Provides utilities for serving files directly from the server filesystem to the client incrementally. ([source](https://github.com/koajs/examples/tree/master/stream-file))
- [HTML Streaming](https://awesome-repositories.com/f/web-development/html-streaming.md) — Implements methods for streaming server-rendered HTML content in chunks to improve page load times. ([source](https://github.com/koajs/examples/blob/master/stream-view))
- [Real-Time Data Streaming](https://awesome-repositories.com/f/web-development/real-time-data-streaming.md) — Implements utilities and patterns for pushing live server-side data updates and events to connected clients.
- [Server-Side Rendering](https://awesome-repositories.com/f/web-development/rendering-templating/server-side-rendering.md) — Implements techniques for generating dynamic HTML content on the server to improve performance and SEO.

### Development Tools & Productivity

- [Project Bootstrapping](https://awesome-repositories.com/f/development-tools-productivity/project-bootstrapping.md) — Offers project skeletons and boilerplates with predefined database and containerization configurations to initialize new projects.

### Networking & Communication

- [Middleware-Based Request Pipelines](https://awesome-repositories.com/f/networking-communication/communication-protocols-architectures/request-processing-architectures/request-processing/middleware-based-request-pipelines.md) — Implements modular chains of pluggable middleware components to intercept and process network requests and responses.
- [Server-Sent Events](https://awesome-repositories.com/f/networking-communication/server-sent-events.md) — Supports pushing real-time updates from the server to the browser via a unidirectional event stream. ([source](https://github.com/koajs/examples/tree/master/stream-server-side-events))

### Programming Languages & Runtimes

- [Async-Await Flow Control](https://awesome-repositories.com/f/programming-languages-runtimes/async-await-flow-control.md) — Utilizes a non-blocking asynchronous execution model based on JavaScript promises and async functions.

### Software Engineering & Architecture

- [Composable Middleware Pipelines](https://awesome-repositories.com/f/software-engineering-architecture/request-interception-middleware/composable-middleware-pipelines.md) — Provides examples of composing sequential middleware pipelines to handle request validation and error propagation. ([source](https://github.com/koajs/examples/blob/master/Readme.md))

### Security & Cryptography

- [Token-Based Authentication](https://awesome-repositories.com/f/security-cryptography/security-and-access-control/token-based-authentication.md) — Provides security systems using signed tokens to verify request authenticity and prevent unauthorized access.
- [Web Application Security](https://awesome-repositories.com/f/security-cryptography/web-application-security.md) — Provides middleware for securing web applications through authentication schemes and request forgery protection.

### User Interface & Experience

- [HTML Template Renderers](https://awesome-repositories.com/f/user-interface-experience/layout-utilities/presentation-engines/template-engines/server-side-rendering-engines/html-template-renderers.md) — Includes tools that generate dynamic HTML output by merging data with predefined templates.