# abhishekkryadav12/chat_bot architecture

> Architecture diagram of the GitHub repository abhishekkryadav12/chat_bot, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-25). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/abhishekkryadav12/chat_bot
- Repository: https://github.com/abhishekkryadav12/chat_bot

## Overview

Astra AI is a browser-based chatbot backed by an Express API and OpenRouter. Users manage conversations and compose messages in the frontend; the frontend sends message history to the API, which validates it, requests a model response, and returns the reply for display. The frontend also supports conversation search, feedback, regeneration, copy, and theme settings, with browser-local persistence. The README documents no further capabilities; frontend excerpts are partial, so internal wiring beyond the visible interactions is omitted.

Main entry points: [`ai-chatbot/server.js`](https://github.com/abhishekkryadav12/chat_bot/blob/main/ai-chatbot/server.js) (Express API), [`ai-chatbot/public/script.js`](https://github.com/abhishekkryadav12/chat_bot/blob/main/ai-chatbot/public/script.js) (Chat interface), [`ai-chatbot/public/index.html`](https://github.com/abhishekkryadav12/chat_bot/blob/main/ai-chatbot/public/index.html) (App page)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_frontend["Browser app"]
  node_frontend["Chat interface<br/>[script.js]"]
  node_page["App page<br/>[index.html]"]
end

subgraph group_backend["API service"]
  node_api["Express API<br/>[server.js]"]
end

subgraph group_provider["AI provider"]
  node_openrouter["OpenRouter API"]
end

node_user(("Chat user"))
node_localstorage[("Browser storage")]

node_user -->|"interacts with"| node_frontend
node_frontend -->|"reads and writes"| node_localstorage
node_frontend -->|"posts messages"| node_api
node_api -->|"requests completion"| node_openrouter
node_openrouter -->|"returns completion"| node_api
node_api -->|"returns reply"| node_frontend
node_api -->|"serves page"| node_page

click node_frontend "https://github.com/abhishekkryadav12/chat_bot/blob/main/ai-chatbot/public/script.js"
click node_page "https://github.com/abhishekkryadav12/chat_bot/blob/main/ai-chatbot/public/index.html"
click node_api "https://github.com/abhishekkryadav12/chat_bot/blob/main/ai-chatbot/server.js"

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_frontend,node_page,node_user toneBlue
class node_api,node_localstorage toneAmber
class node_openrouter toneMint
```

## Components

### Browser app

- [Chat interface](https://github.com/abhishekkryadav12/chat_bot/blob/main/ai-chatbot/public/script.js): `ai-chatbot/public/script.js`
- [App page](https://github.com/abhishekkryadav12/chat_bot/blob/main/ai-chatbot/public/index.html): `ai-chatbot/public/index.html`

### API service

- [Express API](https://github.com/abhishekkryadav12/chat_bot/blob/main/ai-chatbot/server.js): `ai-chatbot/server.js`

### AI provider

- **OpenRouter API**

### Other components

- **Chat user**
- **Browser storage**

## Connections

- Chat user → Chat interface: interacts with
- Chat interface → Browser storage: reads and writes
- Chat interface → Express API: posts messages
- Express API → OpenRouter API: requests completion
- OpenRouter API → Express API: returns completion
- Express API → Chat interface: returns reply
- Express API → App page: serves page