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# System prepended metadata

title: 1218_ruby_day16
tags: [5xruby, ruby]

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# 1218_ruby_day16

[![hackmd-github-sync-badge](https://hackmd.io/K5G4IErGSJeVLKwWbmXqkw/badge)](https://hackmd.io/K5G4IErGSJeVLKwWbmXqkw)

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#### 上課日期：1218
###### tags: `ruby`
###### tags: `5xruby`


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# 相關連結:
- [課程影片](https://campus.5xruby.tw/courses/1136422/lectures/25361517)


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# 0. 綱要/目錄
- [ ] 購物車
- [ ] 狀態機
- [ ] 金流串接



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# 1. 購物車＆狀態機


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# 附件
- [braintree](https://www.braintreepayments.com/)
  - paypal所屬
  - 提供假刷卡服務 
  - 龍：paypal的金流算是比較複雜的



