Add application file

.env

@@ -0,0 +1,31 @@
+# Qdrant Configuration
+QDRANT_URL=https://2aa04938-4f4a-4e3c-9e96-6328c0381059.us-east4-0.gcp.cloud.qdrant.io
+QDRANT_API_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhY2Nlc3MiOiJtIn0.iqhWUBAdUuc0uakiykAf8hBUxUFhMXFkV4edpPYklZ0
+QDRANT_COLLECTION_NAME=RAGChatbot
+
+# Neon Postgres Configuration (fixed format - removed 'psql' prefix)
+DATABASE_URL=postgresql://neondb_owner:npg_olSU4n3LPjZX@ep-blue-dawn-adgrzjmt-pooler.c-2.us-east-1.aws.neon.tech/neondb?sslmode=require
+
+# Gemini API Configuration (via OpenAI-compatible endpoint)
+OPENAI_API_KEY=AIzaSyAAh9OwrhI28Z5toIZye0F9QnWfjqwq8L0
+OPENAI_BASE_URL=https://generativelanguage.googleapis.com/v1beta/openai
+GEMINI_MODEL=gemini-2.5-flash
+
+# Application Settings
+APP_ENV=development
+LOG_LEVEL=info
+RATE_LIMIT_REQUESTS=100
+RATE_LIMIT_WINDOW=60
+
+# RAG Settings
+RAG_TOP_K=5
+RAG_MIN_SCORE=0.3
+MAX_TOKENS_PER_CHUNK=512
+MAX_RESPONSE_TOKENS=2000
+
+# Embedding Configuration
+EMBEDDING_MODEL=text-embedding-004
+EMBEDDING_DIMENSION=768
+
+# CORS Settings
+ALLOWED_ORIGINS=http://localhost:3000,http://localhost:8000,https://yourdomain.com

.env.example

@@ -0,0 +1,30 @@
+# Qdrant Configuration
+QDRANT_URL=https://2aa04938-4f4a-4e3c-9e96-6328c0381059.us-east4-0.gcp.cloud.qdrant.io
+QDRANT_API_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhY2Nlc3MiOiJtIn0.iqhWUBAdUuc0uakiykAf8hBUxUFhMXFkV4edpPYklZ0
+QDRANT_COLLECTION_NAME=RAGChatbot
+
+# Neon Postgres Configuration
+DATABASE_URL=psql 'postgresql://neondb_owner:npg_olSU4n3LPjZX@ep-blue-dawn-adgrzjmt-pooler.c-2.us-east-1.aws.neon.tech/neondb?sslmode=require&channel_binding=require'
+
+# Gemini API Configuration (via OpenAI-compatible endpoint)
+OPENAI_API_KEY=AIzaSyAAh9OwrhI28Z5toIZye0F9QnWfjqwq8L0
+OPENAI_BASE_URL=https://generativelanguage.googleapis.com/v1beta/openai/
+
+# Application Settings
+APP_ENV=development
+LOG_LEVEL=info
+RATE_LIMIT_REQUESTS=100
+RATE_LIMIT_WINDOW=60
+
+# RAG Settings
+RAG_TOP_K=5
+RAG_MIN_SCORE=0.3
+MAX_TOKENS_PER_CHUNK=512
+MAX_RESPONSE_TOKENS=2000
+
+# Embedding Configuration
+EMBEDDING_MODEL=text-embedding-004
+EMBEDDING_DIMENSION=768
+
+# CORS Settings
+ALLOWED_ORIGINS=http://localhost:3000,http://localhost:8000,https://yourdomain.com

Dockerfile

@@ -21,4 +21,4 @@ COPY --chown=user . /app
 EXPOSE 7860
 
 # Run the FastAPI application
-CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]

config.py

@@ -0,0 +1,63 @@
+import os
+from typing import Optional
+
+class Config:
+    """
+    Configuration class for the RAG Chatbot backend
+    """
+    # Database configuration
+    DATABASE_URL: str = os.getenv("DATABASE_URL", "postgresql+asyncpg://user:password@localhost/rag_chatbot")
+
+    # Qdrant configuration
+    QDRANT_URL: str = os.getenv("QDRANT_URL", "http://localhost:6333")
+    QDRANT_API_KEY: Optional[str] = os.getenv("QDRANT_API_KEY")
+    QDRANT_COLLECTION_NAME: str = os.getenv("QDRANT_COLLECTION_NAME", "textbook_content_embeddings")
+
+    # OpenAI/Gemini API configuration
+    OPENAI_API_KEY: str = os.getenv("OPENAI_API_KEY", "")
+    OPENAI_BASE_URL: str = os.getenv("OPENAI_BASE_URL", "https://generativelanguage.googleapis.com/v1beta/openai/")
+    GEMINI_MODEL: str = os.getenv("GEMINI_MODEL", "gemini-2.5-flash")
+
+    # Embedding configuration
+    EMBEDDING_MODEL: str = os.getenv("EMBEDDING_MODEL", "text-embedding-004")
+    EMBEDDING_DIMENSION: int = int(os.getenv("EMBEDDING_DIMENSION", "768"))
+
+    # Application settings
+    APP_ENV: str = os.getenv("APP_ENV", "development")
+    LOG_LEVEL: str = os.getenv("LOG_LEVEL", "INFO")
+
+    # Rate limiting
+    RATE_LIMIT_REQUESTS: int = int(os.getenv("RATE_LIMIT_REQUESTS", "100"))
+    RATE_LIMIT_WINDOW: int = int(os.getenv("RATE_LIMIT_WINDOW", "60"))  # in seconds
+
+    # RAG settings
+    RAG_TOP_K: int = int(os.getenv("RAG_TOP_K", "5"))
+    RAG_MIN_SCORE: float = float(os.getenv("RAG_MIN_SCORE", "0.3"))
+    MAX_TOKENS_PER_CHUNK: int = int(os.getenv("MAX_TOKENS_PER_CHUNK", "512"))
+    MAX_RESPONSE_TOKENS: int = int(os.getenv("MAX_RESPONSE_TOKENS", "2000"))
+
+    # CORS settings
+    ALLOWED_ORIGINS: list = os.getenv("ALLOWED_ORIGINS", "*").split(",")
+
+    # SSE Streaming
+    SSE_STREAMING_ENABLED: bool = os.getenv("SSE_STREAMING_ENABLED", "true").lower() == "true"
+
+    @classmethod
+    def validate(cls):
+        """
+        Validate that required configuration values are set
+        """
+        errors = []
+
+        if not cls.OPENAI_API_KEY:
+            errors.append("OPENAI_API_KEY is required")
+
+        if cls.APP_ENV not in ["development", "staging", "production"]:
+            errors.append(f"APP_ENV must be one of: development, staging, production. Got: {cls.APP_ENV}")
+
+        if errors:
+            raise ValueError(f"Configuration validation failed: {'; '.join(errors)}")
+
+
+# Validate configuration on import
+Config.validate()

pyproject.toml

@@ -0,0 +1,56 @@
+[build-system]
+requires = ["setuptools>=61.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "rag-chatbot-backend"
+version = "0.1.0"
+description = "Backend for RAG Chatbot for Physical AI Textbook"
+readme = "README.md"
+requires-python = ">=3.10"
+license = {text = "MIT"}
+authors = [
+    {name = "Physical AI Textbook Team"},
+]
+dependencies = [
+    "fastapi>=0.104.1",
+    "uvicorn>=0.24.0",
+    "openai>=1.3.5",
+    "qdrant-client>=1.7.0",
+    "asyncio>=3.4.3",
+    "python-dotenv>=1.0.0",
+    "pydantic>=2.5.0",
+    "sqlalchemy>=2.0.23",
+    "asyncpg>=0.29.0",
+    "psycopg[binary]>=3.1.12",
+    "pyjwt>=2.8.0",
+    "passlib[bcrypt]>=1.7.4",
+    "python-multipart>=0.0.6",
+    "alembic>=1.13.1",
+    "tiktoken>=0.5.1",
+    "sentence-transformers>=2.2.2",
+    "requests>=2.31.0",
+    "aiofiles>=23.2.1",
+    "sse-starlette>=1.8.2",
+    "python-slugify>=8.0.1",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=7.4.0",
+    "pytest-asyncio>=0.21.0",
+    "pytest-cov>=4.1.0",
+    "black>=23.7.0",
+    "flake8>=6.0.0",
+    "mypy>=1.4.1",
+    "isort>=5.12.0",
+    "pre-commit>=3.3.3",
+]
+
+[tool.setuptools.packages.find]
+where = ["."]
+include = ["backend*"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+asyncio_mode = "auto"

rag_chatbot_backend.egg-info/PKG-INFO

@@ -0,0 +1,37 @@
+Metadata-Version: 2.4
+Name: rag-chatbot-backend
+Version: 0.1.0
+Summary: Backend for RAG Chatbot for Physical AI Textbook
+Author: Physical AI Textbook Team
+License: MIT
+Requires-Python: >=3.10
+Description-Content-Type: text/markdown
+Requires-Dist: fastapi>=0.104.1
+Requires-Dist: uvicorn>=0.24.0
+Requires-Dist: openai>=1.3.5
+Requires-Dist: qdrant-client>=1.7.0
+Requires-Dist: asyncio>=3.4.3
+Requires-Dist: python-dotenv>=1.0.0
+Requires-Dist: pydantic>=2.5.0
+Requires-Dist: sqlalchemy>=2.0.23
+Requires-Dist: asyncpg>=0.29.0
+Requires-Dist: psycopg[binary]>=3.1.12
+Requires-Dist: pyjwt>=2.8.0
+Requires-Dist: passlib[bcrypt]>=1.7.4
+Requires-Dist: python-multipart>=0.0.6
+Requires-Dist: alembic>=1.13.1
+Requires-Dist: tiktoken>=0.5.1
+Requires-Dist: sentence-transformers>=2.2.2
+Requires-Dist: requests>=2.31.0
+Requires-Dist: aiofiles>=23.2.1
+Requires-Dist: sse-starlette>=1.8.2
+Requires-Dist: python-slugify>=8.0.1
+Provides-Extra: dev
+Requires-Dist: pytest>=7.4.0; extra == "dev"
+Requires-Dist: pytest-asyncio>=0.21.0; extra == "dev"
+Requires-Dist: pytest-cov>=4.1.0; extra == "dev"
+Requires-Dist: black>=23.7.0; extra == "dev"
+Requires-Dist: flake8>=6.0.0; extra == "dev"
+Requires-Dist: mypy>=1.4.1; extra == "dev"
+Requires-Dist: isort>=5.12.0; extra == "dev"
+Requires-Dist: pre-commit>=3.3.3; extra == "dev"

rag_chatbot_backend.egg-info/SOURCES.txt

@@ -0,0 +1,6 @@
+pyproject.toml
+rag_chatbot_backend.egg-info/PKG-INFO
+rag_chatbot_backend.egg-info/SOURCES.txt
+rag_chatbot_backend.egg-info/dependency_links.txt
+rag_chatbot_backend.egg-info/requires.txt
+rag_chatbot_backend.egg-info/top_level.txt

rag_chatbot_backend.egg-info/dependency_links.txt

@@ -0,0 +1 @@
+

rag_chatbot_backend.egg-info/requires.txt

@@ -0,0 +1,30 @@
+fastapi>=0.104.1
+uvicorn>=0.24.0
+openai>=1.3.5
+qdrant-client>=1.7.0
+asyncio>=3.4.3
+python-dotenv>=1.0.0
+pydantic>=2.5.0
+sqlalchemy>=2.0.23
+asyncpg>=0.29.0
+psycopg[binary]>=3.1.12
+pyjwt>=2.8.0
+passlib[bcrypt]>=1.7.4
+python-multipart>=0.0.6
+alembic>=1.13.1
+tiktoken>=0.5.1
+sentence-transformers>=2.2.2
+requests>=2.31.0
+aiofiles>=23.2.1
+sse-starlette>=1.8.2
+python-slugify>=8.0.1
+
+[dev]
+pytest>=7.4.0
+pytest-asyncio>=0.21.0
+pytest-cov>=4.1.0
+black>=23.7.0
+flake8>=6.0.0
+mypy>=1.4.1
+isort>=5.12.0
+pre-commit>=3.3.3

rag_chatbot_backend.egg-info/top_level.txt

@@ -0,0 +1 @@
+