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RAG API

์ด ํ”„๋กœ์ ํŠธ๋Š” ๋ฌธ์„œ ๊ธฐ๋ฐ˜ ์งˆ์˜์‘๋‹ต ์‹œ์Šคํ…œ์„ ๊ตฌํ˜„ํ•œ FastAPI ๊ธฐ๋ฐ˜์˜ API ์„œ๋ฒ„์ž…๋‹ˆ๋‹ค.

๊ธฐ๋Šฅ

  1. ๋ฌธ์„œ ์—…๋กœ๋“œ ๋ฐ ๋ฒกํ„ฐ ์Šคํ† ์–ด ์ €์žฅ

    • PDF ๋ฐ CSV ํŒŒ์ผ ์ง€์›
    • ๋ฌธ์„œ ์ž๋™ ๋ถ„ํ•  ๋ฐ ์ž„๋ฒ ๋”ฉ
    • Chroma ๋ฒกํ„ฐ ์Šคํ† ์–ด์— ์ €์žฅ
  2. ๋ฌธ์„œ ๊ฒ€์ƒ‰

    • ์ž์—ฐ์–ด ์ฟผ๋ฆฌ ๊ธฐ๋ฐ˜ ๊ฒ€์ƒ‰
    • ์œ ์‚ฌ๋„ ๊ธฐ๋ฐ˜ ๋ฌธ์„œ ๊ฒ€์ƒ‰

์„ค์น˜ ๋ฐฉ๋ฒ•

  1. ํ•„์š”ํ•œ ํŒจํ‚ค์ง€ ์„ค์น˜:
pip install -r requirements.txt
  1. ํ™˜๊ฒฝ ๋ณ€์ˆ˜ ์„ค์ •:
export OPENAI_API_KEY="your-api-key"

์‹คํ–‰ ๋ฐฉ๋ฒ•

python main.py

์„œ๋ฒ„๊ฐ€ http://localhost:8000 ์—์„œ ์‹คํ–‰๋ฉ๋‹ˆ๋‹ค.

API ์—”๋“œํฌ์ธํŠธ

  1. ๋ฌธ์„œ ์—…๋กœ๋“œ

    • POST /upload
    • multipart/form-data ํ˜•์‹์œผ๋กœ ํŒŒ์ผ ์—…๋กœ๋“œ
    • ์ง€์› ํ˜•์‹: PDF, CSV
    • ํŒŒ๋ผ๋ฏธํ„ฐ:
      • files: ์—…๋กœ๋“œํ•  ํŒŒ์ผ ๋ชฉ๋ก (ํ•„์ˆ˜)
      • vector_store_dir: ๋ฒกํ„ฐ ์Šคํ† ์–ด๋ฅผ ์ €์žฅํ•  ๋””๋ ‰ํ† ๋ฆฌ ๊ฒฝ๋กœ (์„ ํƒ, ๊ธฐ๋ณธ๊ฐ’: โ€œvector_storeโ€)
  2. ๋ฌธ์„œ ๊ฒ€์ƒ‰

    • POST /query
    • form-data ํ˜•์‹์œผ๋กœ ํŒŒ๋ผ๋ฏธํ„ฐ ์ „๋‹ฌ
    • ํŒŒ๋ผ๋ฏธํ„ฐ:
      • query: ๊ฒ€์ƒ‰ ์ฟผ๋ฆฌ (ํ•„์ˆ˜)
      • vector_store_dir: ๋ฒกํ„ฐ ์Šคํ† ์–ด ๋””๋ ‰ํ† ๋ฆฌ ๊ฒฝ๋กœ (์„ ํƒ, ๊ธฐ๋ณธ๊ฐ’: โ€œvector_storeโ€)
      • k: ๊ฒ€์ƒ‰ํ•  ๋ฌธ์„œ ์ˆ˜ (์„ ํƒ, ๊ธฐ๋ณธ๊ฐ’: 2)

API ๋ฌธ์„œ

FastAPI์˜ ์ž๋™ ์ƒ์„ฑ ๋ฌธ์„œ๋Š” ๋‹ค์Œ URL์—์„œ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค:

  • http://localhost:8000/docs
  • http://localhost:8000/redoc

๋ฒกํ„ฐ ์Šคํ† ์–ด ์ด์ „

๋ฒกํ„ฐ ์Šคํ† ์–ด์— ์ €์žฅ๋œ ํŒŒ์ผ์„ ๋‹ค๋ฅธ ํ”„๋กœ์ ํŠธ์—์„œ ์žฌ์‚ฌ์šฉํ•˜๋ ค๋ฉด ๋‹ค์Œ๊ณผ ๊ฐ™์ด ํ•˜๋ฉด ๋ฉ๋‹ˆ๋‹ค:

  1. ์›ํ•˜๋Š” ๋ฒกํ„ฐ ์Šคํ† ์–ด ๋””๋ ‰ํ† ๋ฆฌ๋ฅผ ๋‹ค๋ฅธ ํ”„๋กœ์ ํŠธ์˜ ๋™์ผํ•œ ๊ฒฝ๋กœ๋กœ ๋ณต์‚ฌํ•ฉ๋‹ˆ๋‹ค.
  2. ๋‹ค๋ฅธ ํ”„๋กœ์ ํŠธ์—์„œ๋„ ๋‹ค์Œ ํŒจํ‚ค์ง€๋“ค์ด ์„ค์น˜๋˜์–ด ์žˆ์–ด์•ผ ํ•ฉ๋‹ˆ๋‹ค:
    • langchain-chroma
    • langchain-openai
    • ๊ธฐํƒ€ ํ•„์š”ํ•œ ์˜์กด์„ฑ ํŒจํ‚ค์ง€๋“ค
  3. ๋™์ผํ•œ ์ž„๋ฒ ๋”ฉ ๋ชจ๋ธ(OpenAIEmbeddings)์„ ์‚ฌ์šฉํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.
  4. ํ•„์š”ํ•œ ํ™˜๊ฒฝ ๋ณ€์ˆ˜(์˜ˆ: OpenAI API ํ‚ค)๊ฐ€ ์˜ฌ๋ฐ”๋ฅด๊ฒŒ ์„ค์ •๋˜์–ด ์žˆ์–ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.

๋ฒกํ„ฐ ์Šคํ† ์–ด๋ฅผ ๋‹ค๋ฅธ ํ”„๋กœ์ ํŠธ๋กœ ์ด์ „ํ•  ๋•Œ๋Š” ๋‹จ์ˆœํžˆ ํ•ด๋‹น ๋””๋ ‰ํ† ๋ฆฌ๋ฅผ ๋ณต์‚ฌํ•˜๋Š” ๊ฒƒ๋งŒ์œผ๋กœ๋„ ์ถฉ๋ถ„ํ•ฉ๋‹ˆ๋‹ค. ์ด๋ ‡๊ฒŒ ํ•˜๋ฉด ๋ฌธ์„œ์˜ ์ž„๋ฒ ๋”ฉ๊ณผ ๋ฉ”ํƒ€๋ฐ์ดํ„ฐ๊ฐ€ ๋ชจ๋‘ ๋ณด์กด๋˜์–ด ์ƒˆ๋กœ์šด ํ”„๋กœ์ ํŠธ์—์„œ๋„ ๋™์ผํ•˜๊ฒŒ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

์—ฌ๋Ÿฌ ๋ฒกํ„ฐ ์Šคํ† ์–ด ์‚ฌ์šฉํ•˜๊ธฐ

์ด ํ”„๋กœ์ ํŠธ๋Š” ์—ฌ๋Ÿฌ ๊ฐœ์˜ ๋ฒกํ„ฐ ์Šคํ† ์–ด๋ฅผ ๋™์‹œ์— ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๋„๋ก ์„ค๊ณ„๋˜์—ˆ์Šต๋‹ˆ๋‹ค. ๊ฐ ๋ฒกํ„ฐ ์Šคํ† ์–ด๋Š” ์„œ๋กœ ๋‹ค๋ฅธ ๋””๋ ‰ํ† ๋ฆฌ์— ์ €์žฅ๋˜๋ฉฐ, API ํ˜ธ์ถœ ์‹œ vector_store_dir ํŒŒ๋ผ๋ฏธํ„ฐ๋ฅผ ํ†ตํ•ด ์›ํ•˜๋Š” ๋ฒกํ„ฐ ์Šคํ† ์–ด๋ฅผ ์ง€์ •ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

์˜ˆ๋ฅผ ๋“ค์–ด, ์„œ๋กœ ๋‹ค๋ฅธ ํ”„๋กœ์ ํŠธ๋‚˜ ๋ฌธ์„œ ์„ธํŠธ์— ๋Œ€ํ•ด ๋ณ„๋„์˜ ๋ฒกํ„ฐ ์Šคํ† ์–ด๋ฅผ ๋งŒ๋“ค๊ณ  ๊ด€๋ฆฌํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค:

project1_docs -> vector_store_project1
project2_docs -> vector_store_project2
research_papers -> vector_store_research

์ด๋ ‡๊ฒŒ ํ•˜๋ฉด ๊ฐ ๋ฌธ์„œ ์„ธํŠธ๋ฅผ ๋…๋ฆฝ์ ์œผ๋กœ ๊ด€๋ฆฌํ•˜๊ณ  ๊ฒ€์ƒ‰ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

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