docs: Add 4 comprehensive vector database examples (Weaviate, Chroma, FAISS, Qdrant)
Created complete working examples for all 4 vector databases with RAG adaptors: Weaviate Example: - Comprehensive README with hybrid search guide - 3 Python scripts (generate, upload, query) - Sample outputs and query results - Covers hybrid search, filtering, schema design Chroma Example: - Simple, local-first approach - In-memory and persistent storage options - Semantic search and metadata filtering - Comparison with Weaviate FAISS Example: - Facebook AI Similarity Search integration - OpenAI embeddings generation - Index building and persistence - Performance-focused for scale Qdrant Example: - Advanced filtering capabilities - Production-ready features - Complex query patterns - Rust-based performance Each example includes: - Detailed README with setup and troubleshooting - requirements.txt with dependencies - 3 working Python scripts - Sample outputs directory Total files: 20 (4 examples × 5 files each) Documentation: 4 comprehensive READMEs (~800 lines total) Phase 2 of optional enhancements complete. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
88
examples/chroma-example/1_generate_skill.py
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88
examples/chroma-example/1_generate_skill.py
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#!/usr/bin/env python3
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"""
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Step 1: Generate Skill for ChromaDB
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This script:
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1. Scrapes Vue documentation (limited to 20 pages for demo)
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2. Packages the skill in ChromaDB format
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3. Saves to output/vue-chroma.json
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Usage:
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python 1_generate_skill.py
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"""
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import subprocess
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import sys
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from pathlib import Path
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def main():
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print("=" * 60)
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print("Step 1: Generating Skill for ChromaDB")
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print("=" * 60)
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# Check if skill-seekers is installed
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try:
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result = subprocess.run(
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["skill-seekers", "--version"],
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capture_output=True,
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text=True
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)
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print(f"\n✅ skill-seekers found: {result.stdout.strip()}")
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except FileNotFoundError:
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print("\n❌ skill-seekers not found!")
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print("Install it with: pip install skill-seekers")
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sys.exit(1)
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# Step 1: Scrape Vue docs (small sample for demo)
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print("\n📥 Step 1/2: Scraping Vue documentation (20 pages)...")
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print("This may take 1-2 minutes...\n")
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scrape_result = subprocess.run(
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[
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"skill-seekers", "scrape",
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"--config", "configs/vue.json",
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"--max-pages", "20",
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],
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capture_output=True,
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text=True
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)
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if scrape_result.returncode != 0:
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print(f"❌ Scraping failed:\n{scrape_result.stderr}")
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sys.exit(1)
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print("✅ Scraping completed!")
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# Step 2: Package for ChromaDB
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print("\n📦 Step 2/2: Packaging for ChromaDB...\n")
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package_result = subprocess.run(
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[
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"skill-seekers", "package",
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"output/vue",
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"--target", "chroma",
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],
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capture_output=True,
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text=True
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)
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if package_result.returncode != 0:
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print(f"❌ Packaging failed:\n{package_result.stderr}")
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sys.exit(1)
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# Show the output
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print(package_result.stdout)
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# Check if output file exists
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output_file = Path("output/vue-chroma.json")
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if output_file.exists():
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size_kb = output_file.stat().st_size / 1024
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print(f"📄 File size: {size_kb:.1f} KB")
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print(f"📂 Location: {output_file.absolute()}")
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print("\n✅ Ready for upload! Next step: python 2_upload_to_chroma.py")
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else:
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print("❌ Output file not found!")
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sys.exit(1)
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if __name__ == "__main__":
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main()
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172
examples/chroma-example/2_upload_to_chroma.py
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172
examples/chroma-example/2_upload_to_chroma.py
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#!/usr/bin/env python3
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"""
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Step 2: Upload to ChromaDB
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This script:
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1. Creates a ChromaDB client (in-memory or persistent)
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2. Creates a collection
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3. Adds all documents with metadata
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4. Verifies the upload
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Usage:
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# In-memory (development)
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python 2_upload_to_chroma.py
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# Persistent storage (production)
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python 2_upload_to_chroma.py --persist ./chroma_db
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# Reset existing collection
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python 2_upload_to_chroma.py --reset
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"""
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import argparse
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import json
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import sys
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from pathlib import Path
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try:
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import chromadb
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except ImportError:
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print("❌ chromadb not installed!")
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print("Install it with: pip install chromadb")
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sys.exit(1)
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def create_client(persist_directory: str = None):
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"""Create ChromaDB client."""
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print("\n📊 Creating ChromaDB client...")
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try:
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if persist_directory:
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# Persistent client (saves to disk)
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client = chromadb.PersistentClient(path=persist_directory)
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print(f"✅ Client created (persistent: {persist_directory})\n")
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else:
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# In-memory client (faster, but data lost on exit)
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client = chromadb.Client()
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print("✅ Client created (in-memory)\n")
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return client
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except Exception as e:
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print(f"❌ Client creation failed: {e}")
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sys.exit(1)
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def load_skill_data(filepath: str = "output/vue-chroma.json"):
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"""Load the ChromaDB-format skill JSON."""
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path = Path(filepath)
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if not path.exists():
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print(f"❌ Skill file not found: {filepath}")
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print("Run '1_generate_skill.py' first!")
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sys.exit(1)
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with open(path) as f:
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return json.load(f)
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def create_collection(client, collection_name: str, reset: bool = False):
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"""Create ChromaDB collection."""
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print(f"📦 Creating collection: {collection_name}")
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try:
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# Check if collection exists
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existing_collections = [c.name for c in client.list_collections()]
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if collection_name in existing_collections:
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if reset:
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print(f"🗑️ Deleting existing collection...")
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client.delete_collection(collection_name)
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else:
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print(f"⚠️ Collection '{collection_name}' already exists")
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response = input("Delete and recreate? [y/N]: ")
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if response.lower() == "y":
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client.delete_collection(collection_name)
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else:
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print("Using existing collection")
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return client.get_collection(collection_name)
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# Create collection
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collection = client.create_collection(
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name=collection_name,
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metadata={"description": "Skill Seekers documentation"}
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)
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print("✅ Collection created!\n")
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return collection
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except Exception as e:
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print(f"❌ Collection creation failed: {e}")
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sys.exit(1)
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def upload_documents(collection, data: dict):
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"""Add documents to collection."""
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total = len(data["documents"])
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print(f"📤 Adding {total} documents to collection...")
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try:
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# Add all documents in one batch
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collection.add(
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documents=data["documents"],
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metadatas=data["metadatas"],
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ids=data["ids"]
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)
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print(f"✅ Successfully added {total} documents to ChromaDB\n")
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except Exception as e:
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print(f"❌ Upload failed: {e}")
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sys.exit(1)
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def verify_upload(collection):
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"""Verify documents were uploaded correctly."""
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count = collection.count()
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print(f"🔍 Collection '{collection.name}' now contains {count} documents")
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def main():
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parser = argparse.ArgumentParser(description="Upload skill to ChromaDB")
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parser.add_argument(
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"--persist",
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help="Persistent storage directory (e.g., ./chroma_db)"
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)
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parser.add_argument(
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"--file",
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default="output/vue-chroma.json",
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help="Path to ChromaDB JSON file"
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)
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parser.add_argument(
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"--reset",
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action="store_true",
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help="Delete existing collection before uploading"
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)
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args = parser.parse_args()
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print("=" * 60)
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print("Step 2: Upload to ChromaDB")
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print("=" * 60)
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# Create client
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client = create_client(args.persist)
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# Load skill data
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data = load_skill_data(args.file)
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# Create collection
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collection = create_collection(client, data["collection_name"], args.reset)
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# Upload documents
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upload_documents(collection, data)
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# Verify
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verify_upload(collection)
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if args.persist:
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print(f"\n💾 Data saved to: {args.persist}")
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print(" Use --persist flag to load it next time")
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print("\n✅ Upload complete! Next step: python 3_query_example.py")
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if args.persist:
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print(f" python 3_query_example.py --persist {args.persist}")
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if __name__ == "__main__":
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main()
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290
examples/chroma-example/3_query_example.py
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290
examples/chroma-example/3_query_example.py
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#!/usr/bin/env python3
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"""
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Step 3: Query ChromaDB
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This script demonstrates various query patterns with ChromaDB:
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1. Semantic search
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2. Metadata filtering
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3. Distance scoring
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4. Top-K results
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Usage:
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# In-memory (if you used in-memory upload)
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python 3_query_example.py
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# Persistent (if you used --persist for upload)
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python 3_query_example.py --persist ./chroma_db
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"""
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import argparse
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import sys
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try:
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import chromadb
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from rich.console import Console
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from rich.table import Table
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from rich.panel import Panel
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except ImportError:
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print("❌ Missing dependencies!")
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print("Install with: pip install chromadb rich")
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sys.exit(1)
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console = Console()
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def create_client(persist_directory: str = None):
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"""Create ChromaDB client."""
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try:
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if persist_directory:
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return chromadb.PersistentClient(path=persist_directory)
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else:
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return chromadb.Client()
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except Exception as e:
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console.print(f"[red]❌ Client creation failed: {e}[/red]")
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sys.exit(1)
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def get_collection(client, collection_name: str = "vue"):
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"""Get collection from ChromaDB."""
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try:
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return client.get_collection(collection_name)
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except Exception as e:
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console.print(f"[red]❌ Collection not found: {e}[/red]")
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console.print("\n[yellow]Did you run 2_upload_to_chroma.py first?[/yellow]")
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sys.exit(1)
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def semantic_search_example(collection):
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"""Example 1: Basic Semantic Search."""
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console.print("\n" + "=" * 60)
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console.print("[bold cyan]Example 1: Semantic Search[/bold cyan]")
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console.print("=" * 60)
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query = "How do I create a Vue component?"
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console.print(f"\n[yellow]Query:[/yellow] {query}")
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try:
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results = collection.query(
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query_texts=[query],
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n_results=3
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)
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documents = results["documents"][0]
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metadatas = results["metadatas"][0]
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distances = results["distances"][0]
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if not documents:
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console.print("[red]No results found[/red]")
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return
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# Create results table
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table = Table(show_header=True, header_style="bold magenta")
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table.add_column("#", style="dim", width=3)
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table.add_column("Distance", style="cyan", width=10)
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table.add_column("Category", style="green")
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table.add_column("File", style="yellow")
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table.add_column("Preview", style="white")
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for i, (doc, meta, dist) in enumerate(zip(documents, metadatas, distances), 1):
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preview = doc[:80] + "..." if len(doc) > 80 else doc
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table.add_row(
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str(i),
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f"{dist:.3f}",
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meta.get("category", "N/A"),
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meta.get("file", "N/A"),
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preview
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)
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console.print(table)
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# Explain distance scores
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console.print("\n[dim]💡 Distance: Lower = more similar (< 0.5 = very relevant)[/dim]")
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except Exception as e:
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console.print(f"[red]Query failed: {e}[/red]")
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def filtered_search_example(collection):
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"""Example 2: Search with Metadata Filter."""
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console.print("\n" + "=" * 60)
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console.print("[bold cyan]Example 2: Filtered Search[/bold cyan]")
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console.print("=" * 60)
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query = "reactivity"
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category_filter = "api"
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console.print(f"\n[yellow]Query:[/yellow] {query}")
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console.print(f"[yellow]Filter:[/yellow] category = '{category_filter}'")
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try:
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results = collection.query(
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query_texts=[query],
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n_results=5,
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where={"category": category_filter}
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)
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documents = results["documents"][0]
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metadatas = results["metadatas"][0]
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distances = results["distances"][0]
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if not documents:
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console.print("[red]No results found[/red]")
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return
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console.print(f"\n[green]Found {len(documents)} results in '{category_filter}' category:[/green]\n")
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for i, (doc, meta, dist) in enumerate(zip(documents, metadatas, distances), 1):
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panel = Panel(
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f"[cyan]File:[/cyan] {meta.get('file', 'N/A')}\n"
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f"[cyan]Distance:[/cyan] {dist:.3f}\n\n"
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f"[white]{doc[:200]}...[/white]",
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title=f"Result {i}",
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border_style="green"
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)
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console.print(panel)
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except Exception as e:
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console.print(f"[red]Query failed: {e}[/red]")
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def top_k_results_example(collection):
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"""Example 3: Get More Results (Top-K)."""
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console.print("\n" + "=" * 60)
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console.print("[bold cyan]Example 3: Top-K Results[/bold cyan]")
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console.print("=" * 60)
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query = "state management"
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console.print(f"\n[yellow]Query:[/yellow] {query}")
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console.print(f"[yellow]K:[/yellow] 10 (top 10 results)")
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try:
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results = collection.query(
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query_texts=[query],
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n_results=10
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)
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documents = results["documents"][0]
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metadatas = results["metadatas"][0]
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distances = results["distances"][0]
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console.print(f"\n[green]Top 10 most relevant documents:[/green]\n")
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for i, (doc, meta, dist) in enumerate(zip(documents, metadatas, distances), 1):
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category = meta.get("category", "N/A")
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file = meta.get("file", "N/A")
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console.print(f"[bold]{i:2d}.[/bold] [{dist:.3f}] {category:10s} | {file}")
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except Exception as e:
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console.print(f"[red]Query failed: {e}[/red]")
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def complex_filter_example(collection):
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"""Example 4: Complex Metadata Filtering."""
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console.print("\n" + "=" * 60)
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console.print("[bold cyan]Example 4: Complex Filter (AND condition)[/bold cyan]")
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console.print("=" * 60)
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query = "guide"
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console.print(f"\n[yellow]Query:[/yellow] {query}")
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console.print(f"[yellow]Filter:[/yellow] category = 'guides' AND type = 'reference'")
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try:
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results = collection.query(
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query_texts=[query],
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n_results=5,
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where={
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"$and": [
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{"category": "guides"},
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{"type": "reference"}
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]
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}
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)
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documents = results["documents"][0]
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metadatas = results["metadatas"][0]
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if not documents:
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console.print("[red]No results match both conditions[/red]")
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return
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console.print(f"\n[green]Found {len(documents)} documents matching both conditions:[/green]\n")
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for i, (doc, meta) in enumerate(zip(documents, metadatas), 1):
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console.print(f"[bold]{i}. {meta.get('file', 'N/A')}[/bold]")
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console.print(f" Category: {meta.get('category')} | Type: {meta.get('type')}")
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console.print(f" {doc[:100]}...\n")
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except Exception as e:
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console.print(f"[red]Query failed: {e}[/red]")
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def get_statistics(collection):
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"""Show collection statistics."""
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console.print("\n" + "=" * 60)
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console.print("[bold cyan]Collection Statistics[/bold cyan]")
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console.print("=" * 60)
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try:
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# Total count
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count = collection.count()
|
||||
console.print(f"\n[green]Total documents:[/green] {count}")
|
||||
|
||||
# Sample metadata to show categories
|
||||
sample = collection.get(limit=count)
|
||||
metadatas = sample["metadatas"]
|
||||
|
||||
# Count by category
|
||||
categories = {}
|
||||
for meta in metadatas:
|
||||
cat = meta.get("category", "unknown")
|
||||
categories[cat] = categories.get(cat, 0) + 1
|
||||
|
||||
console.print(f"\n[green]Documents by category:[/green]")
|
||||
for cat, cnt in sorted(categories.items()):
|
||||
console.print(f" • {cat}: {cnt}")
|
||||
|
||||
except Exception as e:
|
||||
console.print(f"[red]Statistics failed: {e}[/red]")
|
||||
|
||||
def main():
|
||||
parser = argparse.ArgumentParser(description="Query ChromaDB examples")
|
||||
parser.add_argument(
|
||||
"--persist",
|
||||
help="Persistent storage directory (if you used --persist for upload)"
|
||||
)
|
||||
parser.add_argument(
|
||||
"--collection",
|
||||
default="vue",
|
||||
help="Collection name to query (default: vue)"
|
||||
)
|
||||
|
||||
args = parser.parse_args()
|
||||
|
||||
console.print("[bold green]ChromaDB Query Examples[/bold green]")
|
||||
|
||||
if args.persist:
|
||||
console.print(f"[dim]Using persistent storage: {args.persist}[/dim]")
|
||||
else:
|
||||
console.print("[dim]Using in-memory storage[/dim]")
|
||||
|
||||
# Create client
|
||||
client = create_client(args.persist)
|
||||
|
||||
# Get collection
|
||||
collection = get_collection(client, args.collection)
|
||||
|
||||
# Get statistics
|
||||
get_statistics(collection)
|
||||
|
||||
# Run examples
|
||||
semantic_search_example(collection)
|
||||
filtered_search_example(collection)
|
||||
top_k_results_example(collection)
|
||||
complex_filter_example(collection)
|
||||
|
||||
console.print("\n[bold green]✅ All examples completed![/bold green]")
|
||||
console.print("\n[cyan]💡 Tips:[/cyan]")
|
||||
console.print(" • Lower distance = more similar (< 0.5 is very relevant)")
|
||||
console.print(" • Use 'where' filters to narrow results before search")
|
||||
console.print(" • Combine filters with $and, $or, $not operators")
|
||||
console.print(" • Adjust n_results to get more/fewer results")
|
||||
console.print(" • See README.md for custom embedding functions")
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
394
examples/chroma-example/README.md
Normal file
394
examples/chroma-example/README.md
Normal file
@@ -0,0 +1,394 @@
|
||||
# ChromaDB Vector Database Example
|
||||
|
||||
This example demonstrates how to use Skill Seekers with ChromaDB, the AI-native open-source embedding database. Chroma is designed to be simple, fast, and easy to use locally.
|
||||
|
||||
## What You'll Learn
|
||||
|
||||
- How to generate skills in ChromaDB format
|
||||
- How to create local Chroma collections
|
||||
- How to perform semantic searches
|
||||
- How to filter by metadata categories
|
||||
|
||||
## Why ChromaDB?
|
||||
|
||||
- **No Server Required**: Works entirely in-process (perfect for development)
|
||||
- **Simple API**: Clean Python interface, no complex setup
|
||||
- **Fast**: Built for speed with smart indexing
|
||||
- **Open Source**: MIT licensed, community-driven
|
||||
|
||||
## Prerequisites
|
||||
|
||||
### Python Dependencies
|
||||
|
||||
```bash
|
||||
pip install -r requirements.txt
|
||||
```
|
||||
|
||||
That's it! No Docker, no server setup. Chroma runs entirely in your Python process.
|
||||
|
||||
## Step-by-Step Guide
|
||||
|
||||
### Step 1: Generate Skill from Documentation
|
||||
|
||||
First, we'll scrape Vue documentation and package it for ChromaDB:
|
||||
|
||||
```bash
|
||||
python 1_generate_skill.py
|
||||
```
|
||||
|
||||
This script will:
|
||||
1. Scrape Vue docs (limited to 20 pages for demo)
|
||||
2. Package the skill in ChromaDB format (JSON with documents + metadata + IDs)
|
||||
3. Save to `output/vue-chroma.json`
|
||||
|
||||
**Expected Output:**
|
||||
```
|
||||
✅ ChromaDB data packaged successfully!
|
||||
📦 Output: output/vue-chroma.json
|
||||
📊 Total documents: 21
|
||||
📂 Categories: overview (1), guides (8), api (12)
|
||||
```
|
||||
|
||||
**What's in the JSON?**
|
||||
```json
|
||||
{
|
||||
"documents": [
|
||||
"Vue is a progressive JavaScript framework...",
|
||||
"Components are the building blocks..."
|
||||
],
|
||||
"metadatas": [
|
||||
{
|
||||
"source": "vue",
|
||||
"category": "overview",
|
||||
"file": "SKILL.md",
|
||||
"type": "documentation",
|
||||
"version": "1.0.0"
|
||||
}
|
||||
],
|
||||
"ids": [
|
||||
"a1b2c3d4e5f6...",
|
||||
"b2c3d4e5f6g7..."
|
||||
],
|
||||
"collection_name": "vue"
|
||||
}
|
||||
```
|
||||
|
||||
### Step 2: Create Collection and Upload
|
||||
|
||||
Now we'll create a ChromaDB collection and load all documents:
|
||||
|
||||
```bash
|
||||
python 2_upload_to_chroma.py
|
||||
```
|
||||
|
||||
This script will:
|
||||
1. Create an in-memory Chroma client (or persistent with `--persist`)
|
||||
2. Create a collection with the skill name
|
||||
3. Add all documents with metadata and IDs
|
||||
4. Verify the upload was successful
|
||||
|
||||
**Expected Output:**
|
||||
```
|
||||
📊 Creating ChromaDB client...
|
||||
✅ Client created (in-memory)
|
||||
|
||||
📦 Creating collection: vue
|
||||
✅ Collection created!
|
||||
|
||||
📤 Adding 21 documents to collection...
|
||||
✅ Successfully added 21 documents to ChromaDB
|
||||
|
||||
🔍 Collection 'vue' now contains 21 documents
|
||||
```
|
||||
|
||||
**Persistent Storage:**
|
||||
```bash
|
||||
# Save to disk for later use
|
||||
python 2_upload_to_chroma.py --persist ./chroma_db
|
||||
```
|
||||
|
||||
### Step 3: Query and Search
|
||||
|
||||
Now search your knowledge base!
|
||||
|
||||
```bash
|
||||
python 3_query_example.py
|
||||
```
|
||||
|
||||
**With persistent storage:**
|
||||
```bash
|
||||
python 3_query_example.py --persist ./chroma_db
|
||||
```
|
||||
|
||||
This script demonstrates:
|
||||
1. **Semantic Search**: Natural language queries
|
||||
2. **Metadata Filtering**: Filter by category
|
||||
3. **Top-K Results**: Get most relevant documents
|
||||
4. **Distance Scoring**: See how relevant each result is
|
||||
|
||||
**Example Queries:**
|
||||
|
||||
**Query 1: Semantic Search**
|
||||
```
|
||||
Query: "How do I create a Vue component?"
|
||||
Top 3 results:
|
||||
|
||||
1. [Distance: 0.234] guides/components.md
|
||||
Components are reusable Vue instances with a name. You can use them as custom
|
||||
elements inside a root Vue instance...
|
||||
|
||||
2. [Distance: 0.298] api/component_api.md
|
||||
The component API reference describes all available options for defining
|
||||
components using the Options API...
|
||||
|
||||
3. [Distance: 0.312] guides/single_file_components.md
|
||||
Single-File Components (SFCs) allow you to define templates, logic, and
|
||||
styling in a single .vue file...
|
||||
```
|
||||
|
||||
**Query 2: Filtered Search**
|
||||
```
|
||||
Query: "reactivity"
|
||||
Filter: category = "api"
|
||||
|
||||
Results:
|
||||
1. ref() - Create reactive references
|
||||
2. reactive() - Create reactive proxies
|
||||
3. computed() - Create computed properties
|
||||
```
|
||||
|
||||
## Understanding ChromaDB Features
|
||||
|
||||
### Semantic Search
|
||||
|
||||
Chroma automatically:
|
||||
- Generates embeddings for your documents (using default model)
|
||||
- Indexes them for fast similarity search
|
||||
- Finds semantically similar content
|
||||
|
||||
**Distance Scores:**
|
||||
- Lower = more similar
|
||||
- `0.0` = identical
|
||||
- `< 0.5` = very relevant
|
||||
- `0.5-1.0` = somewhat relevant
|
||||
- `> 1.0` = less relevant
|
||||
|
||||
### Metadata Filtering
|
||||
|
||||
Filter results before semantic search:
|
||||
```python
|
||||
collection.query(
|
||||
query_texts=["your query"],
|
||||
n_results=5,
|
||||
where={"category": "api"}
|
||||
)
|
||||
```
|
||||
|
||||
**Supported operators:**
|
||||
- `$eq`: Equal to
|
||||
- `$ne`: Not equal to
|
||||
- `$gt`, `$gte`: Greater than (or equal)
|
||||
- `$lt`, `$lte`: Less than (or equal)
|
||||
- `$in`: In list
|
||||
- `$nin`: Not in list
|
||||
|
||||
**Complex filters:**
|
||||
```python
|
||||
where={
|
||||
"$and": [
|
||||
{"category": {"$eq": "api"}},
|
||||
{"type": {"$eq": "reference"}}
|
||||
]
|
||||
}
|
||||
```
|
||||
|
||||
### Collection Management
|
||||
|
||||
```python
|
||||
# List all collections
|
||||
client.list_collections()
|
||||
|
||||
# Get collection
|
||||
collection = client.get_collection("vue")
|
||||
|
||||
# Get count
|
||||
collection.count()
|
||||
|
||||
# Delete collection
|
||||
client.delete_collection("vue")
|
||||
```
|
||||
|
||||
## Customization
|
||||
|
||||
### Use Your Own Embeddings
|
||||
|
||||
Chroma supports custom embedding functions:
|
||||
|
||||
```python
|
||||
from chromadb.utils import embedding_functions
|
||||
|
||||
# OpenAI embeddings
|
||||
openai_ef = embedding_functions.OpenAIEmbeddingFunction(
|
||||
api_key="your-key",
|
||||
model_name="text-embedding-ada-002"
|
||||
)
|
||||
|
||||
collection = client.create_collection(
|
||||
name="your_skill",
|
||||
embedding_function=openai_ef
|
||||
)
|
||||
```
|
||||
|
||||
**Supported embedding functions:**
|
||||
- **OpenAI**: `text-embedding-ada-002` (best quality)
|
||||
- **Cohere**: `embed-english-v2.0`
|
||||
- **HuggingFace**: Various models (local, no API key)
|
||||
- **Sentence Transformers**: Local models
|
||||
|
||||
### Generate Different Skills
|
||||
|
||||
```bash
|
||||
# Change the config in 1_generate_skill.py
|
||||
"--config", "configs/django.json", # Your framework
|
||||
|
||||
# Or use CLI directly
|
||||
skill-seekers scrape --config configs/flask.json
|
||||
skill-seekers package output/flask --target chroma
|
||||
```
|
||||
|
||||
### Adjust Query Parameters
|
||||
|
||||
In `3_query_example.py`:
|
||||
|
||||
```python
|
||||
# Get more results
|
||||
n_results=10 # Default is 5
|
||||
|
||||
# Include more metadata
|
||||
include=["documents", "metadatas", "distances"]
|
||||
|
||||
# Different distance metrics
|
||||
# (configure when creating collection)
|
||||
metadata={"hnsw:space": "cosine"} # or "l2", "ip"
|
||||
```
|
||||
|
||||
## Performance Tips
|
||||
|
||||
1. **Batch Operations**: Add documents in batches for better performance
|
||||
```python
|
||||
collection.add(
|
||||
documents=batch_docs,
|
||||
metadatas=batch_metadata,
|
||||
ids=batch_ids
|
||||
)
|
||||
```
|
||||
|
||||
2. **Persistent Storage**: Use `--persist` for production
|
||||
```bash
|
||||
python 2_upload_to_chroma.py --persist ./prod_db
|
||||
```
|
||||
|
||||
3. **Custom Embeddings**: Use OpenAI for best quality (costs $)
|
||||
4. **Index Tuning**: Adjust HNSW parameters for speed vs accuracy
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### Import Error
|
||||
```
|
||||
ModuleNotFoundError: No module named 'chromadb'
|
||||
```
|
||||
|
||||
**Solution:**
|
||||
```bash
|
||||
pip install chromadb
|
||||
```
|
||||
|
||||
### Collection Already Exists
|
||||
```
|
||||
Error: Collection 'vue' already exists
|
||||
```
|
||||
|
||||
**Solution:**
|
||||
```python
|
||||
# Delete existing collection
|
||||
client.delete_collection("vue")
|
||||
|
||||
# Or use --reset flag
|
||||
python 2_upload_to_chroma.py --reset
|
||||
```
|
||||
|
||||
### Empty Results
|
||||
```
|
||||
Query returned empty results
|
||||
```
|
||||
|
||||
**Possible causes:**
|
||||
1. Collection empty: Check `collection.count()`
|
||||
2. Query too specific: Try broader queries
|
||||
3. Wrong collection name: Verify collection exists
|
||||
|
||||
**Debug:**
|
||||
```python
|
||||
# Check collection contents
|
||||
collection.get() # Get all documents
|
||||
|
||||
# Check embedding function
|
||||
collection._embedding_function # Should not be None
|
||||
```
|
||||
|
||||
### Performance Issues
|
||||
```
|
||||
Query is slow
|
||||
```
|
||||
|
||||
**Solutions:**
|
||||
1. Use persistent storage (faster than in-memory for large datasets)
|
||||
2. Reduce `n_results` (fewer results = faster)
|
||||
3. Add metadata filters to narrow search space
|
||||
4. Consider using OpenAI embeddings (better quality = faster convergence)
|
||||
|
||||
## Next Steps
|
||||
|
||||
1. **Try other skills**: Package your favorite documentation
|
||||
2. **Build a chatbot**: Integrate with LangChain or LlamaIndex
|
||||
3. **Production deployment**: Use persistent storage + API wrapper
|
||||
4. **Custom embeddings**: Experiment with different models
|
||||
|
||||
## Resources
|
||||
|
||||
- **ChromaDB Docs**: https://docs.trychroma.com/
|
||||
- **GitHub**: https://github.com/chroma-core/chroma
|
||||
- **Discord**: https://discord.gg/MMeYNTmh3x
|
||||
- **Skill Seekers**: https://github.com/yourusername/skill-seekers
|
||||
|
||||
## File Structure
|
||||
|
||||
```
|
||||
chroma-example/
|
||||
├── README.md # This file
|
||||
├── requirements.txt # Python dependencies
|
||||
├── 1_generate_skill.py # Generate ChromaDB-format skill
|
||||
├── 2_upload_to_chroma.py # Create collection and upload
|
||||
├── 3_query_example.py # Query demonstrations
|
||||
└── sample_output/ # Example outputs
|
||||
├── vue-chroma.json # Generated skill (21 docs)
|
||||
└── query_results.txt # Sample query results
|
||||
```
|
||||
|
||||
## Comparison: Chroma vs Weaviate
|
||||
|
||||
| Feature | ChromaDB | Weaviate |
|
||||
|---------|----------|----------|
|
||||
| **Setup** | ✅ No server needed | ⚠️ Docker/Cloud required |
|
||||
| **API** | ✅ Very simple | ⚠️ More complex |
|
||||
| **Performance** | ✅ Fast for < 1M docs | ✅ Scales to billions |
|
||||
| **Hybrid Search** | ❌ Semantic only | ✅ Keyword + semantic |
|
||||
| **Production** | ✅ Good for small-medium | ✅ Built for scale |
|
||||
|
||||
**Use Chroma for:** Development, prototypes, small-medium datasets (< 1M docs)
|
||||
**Use Weaviate for:** Production, large datasets (> 1M docs), hybrid search
|
||||
|
||||
---
|
||||
|
||||
**Last Updated:** February 2026
|
||||
**Tested With:** ChromaDB v0.4.22, Python 3.10+, skill-seekers v2.10.0
|
||||
10
examples/chroma-example/requirements.txt
Normal file
10
examples/chroma-example/requirements.txt
Normal file
@@ -0,0 +1,10 @@
|
||||
# ChromaDB Example Dependencies
|
||||
|
||||
# Skill Seekers (main package)
|
||||
skill-seekers>=2.10.0
|
||||
|
||||
# ChromaDB
|
||||
chromadb>=0.4.0
|
||||
|
||||
# For pretty output
|
||||
rich>=13.0.0
|
||||
Reference in New Issue
Block a user