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Kenji Saito
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June 14, 2025
Technology
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Web API / Web API
早稲田大学大学院経営管理研究科「フィンテック ─ 金融革新とインターネット」2025 夏のオンデマンド教材 第11回で使用したスライドです。
Kenji Saito
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June 14, 2025
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Transcript
Generated by Stable Diffusion 3.5 — 2025 11 Web API
(WBS) — 2025 11 Web API — 2025-06 – p.1/10
https://speakerdeck.com/ks91/collections/fintech-2025-summer — 2025 11 Web API — 2025-06 – p.2/10
( 20 ) 1 ↑ • 2 ↓ 2025 •
3 • 4 (TCP/IP ) • 5 • 6 • 7 • 8 ↑ • 9 ↓ 2024 ( ) • 10 World Wide Web • 11 Web API • 12 * 13 git GitHub 14 (6/23 ) / (2 ) OK / — 2025 11 Web API — 2025-06 – p.3/10
API API Application Programming Interface Web API HTTP(S) / API
( ) — 2025 11 Web API — 2025-06 – p.4/10
REST (Representational State Transfer) ( ) POST, GET ( ),
PUT, DELETE vs. CRUD (Create/Read/Update/Delete) CRUD URI JSON (JavaScript Object Notation) — 2025 11 Web API — 2025-06 – p.5/10
— HTTPS Demo ( ) $ openssl s_client -connect www.waseda.jp:443
GET / openssl www.google.com:443 GET /search?q=refrigerator — 2025 11 Web API — 2025-06 – p.6/10
REST – ( ) ( ) ( = ) Last
In, First Out POST POST POST GET PUT DELETE — 2025 11 Web API — 2025-06 – p.7/10
$ git clone https://github.com/ks91/sample-web-api.git API (Python3 Flask ) Web API
$ python stack.py README (5 − 2) × (3 + 4) 5 2 − 3 4 + × ( ) API 1∼10 — 2025 11 Web API — 2025-06 – p.8/10
API API ( ) Bitcoin Ethereum Virtual Machine (EVM) —
2025 11 Web API — 2025-06 – p.9/10
— 2025 11 Web API — 2025-06 – p.10/10