🧠 FastAPI AI Related Posts API

A semantic search API using FastAPI, FAISS, and sentence-transformers to serve related blog posts based on content similarity.

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🚀 Features

• 🔍 Uses sentence-transformers to generate embeddings
• ⚡ Fast vector search with FAISS
• 🔗 Fetches real posts from WordPress
• 🔐 Secured with API Key
• 🌐 CORS support for frontend integration

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🛠️ Requirements

• Python 3.8+
• pip

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📦 Installation

git clone https://github.com/your-username/fastapi-ai-related.git
cd fastapi-ai-related
pip install -r requirements.txt

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🧪 Run Locally

uvicorn main:app --reload

Then access:

• http://localhost:8000/related-posts?post_id=1 with header X-Api-Key: your-secret-token
• http://localhost:8000/health

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🐳 Docker (Optional)

docker build -t fastapi-ai-related .
docker run -d -p 8000:8000 fastapi-ai-related

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🔐 Environment Configuration

Edit app/config.py:

WP_API_URL = "https://yourdomain.com/wp-json/wp/v2/posts?...&_fields=id,title.rendered,content.rendered"
API_KEY = "your-secret-token"

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🧱 Project Structure

.
├── main.py
├── requirements.txt
└── app/
    ├── config.py
    ├── models.py
    ├── faiss_index.py
    ├── related.py
    └── __init__.py

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🧩 To-Do

• Schedule CRON to re-index new posts
• Add admin reload route
• Connect to Redis for persistent cache