CV Generator — AI-Powered Cover Letter Assistant

A Spring Boot middleware service that generates personalized cover letters using AI. Built as part of the Web Services and Integrations course at IT-Högskolan.

What it does

This application acts as a bridge between the user and a Large Language Model (LLM). It tailors cover letters based on a chosen personality/target role, maintains conversation history per session, and handles errors gracefully.

Personalities

Personality	Target Role
teacher	Teaching positions in fashion or technology education
manager	Middle management, team lead, operations manager
consultant	Software consultant, implementation specialist

How to use

Request

POST /api/v1/chat

{
    "personality": "consultant",
    "message": "Write me a cover letter for a software consultant role",
    "sessionId": "my-session-123"
}

Response

{
    "message": "AI generated cover letter...",
    "sessionId": "my-session-123"
}

Features

• AI-powered cover letter generation via OpenRouter
• Session memory — refine your letter conversationally
• Three personalities targeting different job types
• Global exception handling with clean error messages
• Automatic retry with exponential backoff on rate limits
• Swagger UI documentation at /swagger-ui.html

Setup

1. Clone the repository
2. Create a .env file in the project root:
3. Add the .env file in IntelliJ Run Configuration:
   • Edit Configurations → Modify options → Environment variables
   • Load from file → select .env
4. Run the application
5. Visit http://localhost:8080/swagger-ui.html

Tech Stack

• Java 26
• Spring Boot 4.0.6
• Spring RestClient
• Spring Retry
• springdoc-openapi (Swagger)
• OpenRouter API (Claude 3.5 Haiku)

API Documentation

Available at http://localhost:8080/swagger-ui.html when running locally.