Desarrollo Backend

Module 1: RESTful API Fundamentals

REST Representational State Transfer is the dominant architectural style for web APIs. This module covers concepts you need before building backends with any framework.

RESTful API Best Practices

Practical guidelines for designing and implementing productionquality REST APIs.

Module 2: Python FastAPI

FastAPI is a modern, highperformance Python web framework for building APIs. It uses type hints and Pydantic for validation and automatically generates OpenAPI Swagger documentation.

Module 3: Python Flask

Flask is a lightweight microframework for Python. You can build REST APIs, serverrendered web apps with templates Jinja2, or both.

Module 4: Node.js Backend Development

Node.js lets you build backend services in JavaScript or TypeScript using the same language as the browser. Express is the most common web framework for REST APIs.

Module 5: Nest.js Backend Development

Nest.js is a TypeScriptfirst backend framework built on Node.js. It uses modules, dependency injection, and decorators similar to Angular, and is wellsuited for scalable REST APIs and microservices.

Module 6: SQL Databases for Backend

Relational databases SQL store data in tables with rows and columns, linked by relationships and foreign keys. They are the default choice for structured, transactional data in backend applications.

Module 7: NoSQL Databases for Backend

NoSQL databases use storage models other than traditional relational tables. Common types: document e.g. MongoDB, keyvalue e.g. Redis, widecolumn e.g. Cassandra, graph e.g. Neo4j. This module focuses on document stores M

Backend Tech Stack — Quick Reference

Onepage reference for REST, Python FastAPI/Flask, Node.js/Nest.js, and SQL/NoSQL.

Backend Development Training Materials

Comprehensive training materials for backend development, covering RESTful APIs, Python FastAPI & Flask, Node.js, Nest.js, and SQL/NoSQL databases.

📘 Comprehensive JSON Guide

1. What is JSON?whatisjson 2. Why JSON?whyjson 3. JSON Syntaxjsonsyntax 4. JSON Data Typesjsondatatypes 5. JSON Examplesjsonexamples 6. JSON in RESTful APIsjsoninrestfulapis 7. JSON in NestJSjsoninnestjs 8. Common JSON O

Beginner Level: NestJS Fundamentals

1. Introduction to NestJSintroductiontonestjs 2. Project Setupprojectsetup 3. Understanding the Project Structureunderstandingtheprojectstructure 4. Controllers and Routescontrollersandroutes 5. Basic RESTful APIbasicres

Detailed Request Flow: GET /todos

This document explains stepbystep how NestJS handles the request curl http://localhost:3000/todos.

Beginner Level Complete Code Examples

This directory contains complete, runnable code examples for the beginner level.

development

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Beginner Level Complete Code Examples

This directory contains complete, runnable code examples for the beginner level.

Intermediate Level: Core NestJS Concepts

1. Services and Dependency Injectionservicesanddependencyinjection 2. Middlewaremiddleware 3. Pipes Validation & Transformationpipesvalidationtransformation 4. Guards Authentication & Authorizationguardsauthenticationaut

Intermediate Level Complete Code Examples

This directory contains complete, runnable code examples demonstrating intermediate NestJS concepts.

Setup Instructions for Intermediate Code

1. Navigate to the code directory: bash cd 02intermediate/code

development

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Advanced Level: Advanced NestJS Patterns

1. Advanced Decoratorsadvanceddecorators 2. Custom Providers & Factoriescustomprovidersfactories 3. Dynamic Modulesdynamicmodules 4. Microservicesmicroservices 5. WebSocketswebsockets 6. Testingtesting 7. Database Integr

Advanced Level Complete Code Examples

This directory contains complete, runnable code examples demonstrating advanced NestJS concepts.

How to Run Each Level

This guide explains how to run the code examples for each level.

📖 Complete Learning Guide

This comprehensive guide will take you from a NestJS beginner to an advanced developer.