# jayagajjar/my_nextjs_app architecture

> Architecture diagram of the GitHub repository jayagajjar/my_nextjs_app, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-27). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/jayagajjar/my_nextjs_app
- Repository: https://github.com/jayagajjar/my_nextjs_app

## Overview

This is a small Next.js demo app whose active workflow is an emotion-styled ChatGPT prompt: a user submits a question, the home page sends it to an API route, and the returned answer is displayed. The API route makes the OpenAI request. Other components in the tree are demo or navigation examples; sampled code shows them commented out on the home page, so they are not presented as active workflow stages.

Main entry points: [`app/page.tsx`](https://github.com/jayagajjar/my_nextjs_app/blob/my_nextjs_app/app/page.tsx) (Home page), [`app/api/chat-gpt/route.tsx`](https://github.com/jayagajjar/my_nextjs_app/blob/my_nextjs_app/app/api/chat-gpt/route.tsx) (Chat API route), [`app/components/PromptForm.tsx`](https://github.com/jayagajjar/my_nextjs_app/blob/my_nextjs_app/app/components/PromptForm.tsx) (Prompt form), [`app/layout.tsx`](https://github.com/jayagajjar/my_nextjs_app/blob/my_nextjs_app/app/layout.tsx) (Root layout)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_ui["Web interface"]
  node_layout["Root layout<br/>[layout.tsx]"]
  node_home["Home page<br/>[page.tsx]"]
  node_prompt["Prompt form<br/>[PromptForm.tsx]"]
end

subgraph group_server["AI request"]
  node_api["Chat API route<br/>[route.tsx]"]
end

node_user(("User"))
node_openai["OpenAI API"]

node_user -->|"opens"| node_home
node_layout -->|"renders"| node_home
node_home -->|"renders"| node_prompt
node_prompt -->|"submits prompt"| node_home
node_home -->|"POSTs prompt"| node_api
node_api -->|"requests completion"| node_openai
node_openai -->|"returns completion"| node_api
node_api -->|"returns JSON"| node_home
node_home -->|"displays answer"| node_user

click node_layout "https://github.com/jayagajjar/my_nextjs_app/blob/my_nextjs_app/app/layout.tsx"
click node_home "https://github.com/jayagajjar/my_nextjs_app/blob/my_nextjs_app/app/page.tsx"
click node_prompt "https://github.com/jayagajjar/my_nextjs_app/blob/my_nextjs_app/app/components/PromptForm.tsx"
click node_api "https://github.com/jayagajjar/my_nextjs_app/blob/my_nextjs_app/app/api/chat-gpt/route.tsx"

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_layout,node_home,node_prompt,node_user toneBlue
class node_api toneAmber
class node_openai toneMint
```

## Components

### Web interface

- [Root layout](https://github.com/jayagajjar/my_nextjs_app/blob/my_nextjs_app/app/layout.tsx): `app/layout.tsx`
- [Home page](https://github.com/jayagajjar/my_nextjs_app/blob/my_nextjs_app/app/page.tsx): `app/page.tsx`
- [Prompt form](https://github.com/jayagajjar/my_nextjs_app/blob/my_nextjs_app/app/components/PromptForm.tsx): `app/components/PromptForm.tsx`

### AI request

- [Chat API route](https://github.com/jayagajjar/my_nextjs_app/blob/my_nextjs_app/app/api/chat-gpt/route.tsx): `app/api/chat-gpt/route.tsx`

### Other components

- **User**
- **OpenAI API**

## Connections

- User → Home page: opens
- Root layout → Home page: renders
- Home page → Prompt form: renders
- Prompt form → Home page: submits prompt
- Home page → Chat API route: POSTs prompt
- Chat API route → OpenAI API: requests completion
- OpenAI API → Chat API route: returns completion
- Chat API route → Home page: returns JSON
- Home page → User: displays answer