Threads App – Backend

This repository contains the backend for a Threads-like application, built primarily as a learning-focused project.

Purpose

The main motive of this backend is to learn and practice:

• GraphQL for flexible and efficient API design
• Docker containerization for consistent local development and environment management
• PostgreSQL as a relational database in a containerized setup

This project is **not production-ready**. The focus is on understanding core backend concepts rather than building a fully scaled system.

Tech Stack

• Node.js + Express
• Apollo Server (GraphQL)
• PostgreSQL
• Docker & Docker Compose

Key Learnings

• Designing GraphQL schemas and resolvers
• Running backend services using Docker containers
• Implementing PostgreSQL as a persistent database using Docker volumes
• Managing database configuration through environment variables
• Understanding container lifecycle and data persistence

PostgreSQL Implementation

PostgreSQL is used as the primary database for this backend.

• Runs as a separate Docker service
• Uses a named volume to persist data across container restarts
• Database credentials are injected via environment variables
• Designed for local development and learning database integration with GraphQL

This setup helps in understanding how real-world backends manage databases in isolated, reproducible environments.