Architecture

T1 Diaries is designed as a modular full-stack application.

The goal is to keep the boundaries between the different parts of the system explicit.

Technology stack

The initial stack is:

• Rust
• Axum
• async-graphql
• PostgreSQL
• SQLx
• Next.js
• TypeScript

High-level architecture

The application follows this general flow:

┌──────────────────────┐
│      Next.js         │
│      Frontend        │
└──────────┬───────────┘
           │
           │ GraphQL
           ▼
┌──────────────────────┐
│        Axum          │
│     HTTP Server      │
└──────────┬───────────┘
           │
           ▼
┌──────────────────────┐
│    async-graphql     │
│     GraphQL API      │
└──────────┬───────────┘
           │
           ▼
┌──────────────────────┐
│      Services        │
│    Business Logic    │
└──────────┬───────────┘
           │
           ▼
┌──────────────────────┐
│     Repositories     │
│        SQLx          │
└──────────┬───────────┘
           │
           ▼
┌──────────────────────┐
│     PostgreSQL       │
└──────────────────────┘