# gomo2005/real-time-chat-application architecture

> Architecture diagram of the GitHub repository gomo2005/real-time-chat-application, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-30). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/gomo2005/real-time-chat-application
- Repository: https://github.com/gomo2005/real-time-chat-application

## Overview

ChatSpace is a Flask and Socket.IO real-time messaging application. A user registers or logs in, opens the dashboard, then chats through live events; the application persists user and message data in PostgreSQL and uses Redis to distribute Socket.IO messages across replicas. The monolithic app.py also handles presence, profiles, file sharing, reactions, and message management. The README documents the Redis and database roles; unsampled source limits detail about how some features are implemented.

Main entry points: [`app.py`](https://github.com/gomo2005/real-time-chat-application/blob/main/app.py) (Flask and Socket.IO), [`Templates/dashboard.html`](https://github.com/gomo2005/real-time-chat-application/blob/main/Templates/dashboard.html) (Chat dashboard)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_client["Browser interface"]
  node_dashboard["Chat dashboard<br/>[dashboard.html]"]
end

subgraph group_app["Application features"]
  node_flask["Flask and Socket.IO<br/>[app.py]"]
  node_auth["Authentication<br/>[app.py]"]
  node_chat["Group and direct chat<br/>[app.py]"]
  node_presence["Presence and typing<br/>[app.py]"]
  node_message_features["Message tools<br/>[app.py]"]
  node_profiles_files["Profiles and files<br/>[app.py]"]
end

subgraph group_data["Persistence and messaging"]
  node_postgres[("PostgreSQL")]
  node_redis["Socket.IO queue"]
end

node_browser(("Chat user"))

node_browser -->|"uses HTTP and WebSocket"| node_flask
node_flask -->|"handles authentication"| node_auth
node_flask -->|"renders dashboard"| node_dashboard
node_browser -->|"uses chat UI"| node_dashboard
node_dashboard -->|"sends chat events"| node_flask
node_flask -->|"handles chat events"| node_chat
node_flask -->|"tracks presence"| node_presence
node_flask -->|"handles message actions"| node_message_features
node_flask -->|"handles profiles and uploads"| node_profiles_files
node_flask -->|"persists application data"| node_postgres
node_flask -->|"publishes Socket.IO events"| node_redis

click node_flask "https://github.com/gomo2005/real-time-chat-application/blob/main/app.py"
click node_auth "https://github.com/gomo2005/real-time-chat-application/blob/main/app.py"
click node_dashboard "https://github.com/gomo2005/real-time-chat-application/blob/main/Templates/dashboard.html"
click node_chat "https://github.com/gomo2005/real-time-chat-application/blob/main/app.py"
click node_presence "https://github.com/gomo2005/real-time-chat-application/blob/main/app.py"
click node_message_features "https://github.com/gomo2005/real-time-chat-application/blob/main/app.py"
click node_profiles_files "https://github.com/gomo2005/real-time-chat-application/blob/main/app.py"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_dashboard,node_browser toneBlue
class node_flask,node_auth,node_chat,node_presence,node_message_features,node_profiles_files toneAmber
class node_postgres,node_redis toneMint
```

## Components

### Browser interface

- [Chat dashboard](https://github.com/gomo2005/real-time-chat-application/blob/main/Templates/dashboard.html): `Templates/dashboard.html`

### Application features

- [Flask and Socket.IO](https://github.com/gomo2005/real-time-chat-application/blob/main/app.py): `app.py`
- [Authentication](https://github.com/gomo2005/real-time-chat-application/blob/main/app.py): `app.py`
- [Group and direct chat](https://github.com/gomo2005/real-time-chat-application/blob/main/app.py): `app.py`
- [Presence and typing](https://github.com/gomo2005/real-time-chat-application/blob/main/app.py): `app.py`
- [Message tools](https://github.com/gomo2005/real-time-chat-application/blob/main/app.py): `app.py`
- [Profiles and files](https://github.com/gomo2005/real-time-chat-application/blob/main/app.py): `app.py`

### Persistence and messaging

- **PostgreSQL**
- **Socket.IO queue**

### Other components

- **Chat user**

## Connections

- Chat user → Flask and Socket.IO: uses HTTP and WebSocket (evidence: `README.md`)
- Flask and Socket.IO → Authentication: handles authentication (evidence: `app.py`)
- Flask and Socket.IO → Chat dashboard: renders dashboard (evidence: `app.py`)
- Chat user → Chat dashboard: uses chat UI (evidence: `README.md`)
- Chat dashboard → Flask and Socket.IO: sends chat events (evidence: `README.md`)
- Flask and Socket.IO → Group and direct chat: handles chat events (evidence: `app.py`)
- Flask and Socket.IO → Presence and typing: tracks presence (evidence: `app.py`)
- Flask and Socket.IO → Message tools: handles message actions (evidence: `app.py`)
- Flask and Socket.IO → Profiles and files: handles profiles and uploads (evidence: `app.py`)
- Flask and Socket.IO → PostgreSQL: persists application data (evidence: `README.md`)
- Flask and Socket.IO → Socket.IO queue: publishes Socket.IO events (evidence: `README.md`)