DSA Mentor Backend

A Node.js backend for DSA mentoring using AI models from Google Gemini, Groq, Mistral, and AWS.

Setup

1. Install dependencies: npm install
2. Create a .env file with your API keys:

   GOOGLE_API_KEY=your_google_api_key
   GROQ_API_KEY=your_groq_api_key
   MISTRAL_API_KEY=your_mistral_api_key
   AWS_ACCESS_KEY_ID=your_aws_access_key_id
   AWS_SECRET_ACCESS_KEY=your_aws_secret_access_key
   AWS_REGION=us-east-1
   PORT=3000
   

3. Start the server: npm start

API

POST /api/analyze

Analyzes DSA stats using the selected AI model.

Request Body:

{
  "stats": "your stats data here",
  "modelChoice": "brain" // brain, speed, logic, or expert
}

Response:

{
  "message": "Analysis report..."
}

Models

• brain: Gemini-3-flash (Adaptive Thinking for massive datasets)
• speed: Llama-3.3-70b-versatile (300+ tokens/sec)
• logic: Mistral-small-3.2 (Perfect instruction-following for coding)
• expert: Amazon Nova Pro (Complex reasoning and AWS integration)