Write image proxy server for LINE Bot in Go

Evan Lin
Chatb10ts meetup 聊天機器人小小聚 10 @ 天瓏書局 Coding Space
https://chatbots.kktix.cc/events/meetup-010

Transcript

1. Write image proxy server for LINE Bot in Go LINE Technical Evangelist Evan Lin
2. (YDQ/LQ /,1(7HFKQLFDO(YDQJHOLVW • 'HYHORSHU 5HODWLRQV • 7HFKQLFDO EUDQGLQJ • 7HFKQLFDO +LULQJ • /,1( 'HYHORSHU 0HHWXS7HFK3XOVH 2UJDQL]HU
3. NEW API Update
4. https://developers.line.biz/en/news/#line-login-new-parameters-and-properties-added-2019-06-26
5. https://login-tester-evan.herokuapp.com/
6. https://www.evanlin.com/til-line-login/ Tutorial article (Chinese) Open Source Packages: • https://github.com/kkdai/line-social-sdk-go • https://github.com/kkdai/line-login-go
7. Why we need a Image-Proxy Server
8. A story about pet adoption http://www.evanlin.com/petsneedme-helping-adoption-pet/
9. Pet Adoption : Open Data • http://data.coa.gov.tw/Service/OpenData/TransService.aspx?UnitId=QcbUEzN6E6DL&$top=50&$skip=0
10. Pet Adoption : Open Data • http://data.coa.gov.tw/Service/OpenData/TransService.aspx?UnitId=QcbUEzN6E6DL&$top=50&$skip=0
11. Our problem
12. Let’s use Heroku as our Image Proxy Server • Default support HTTPS • No persistent storage • Will shutdown 6 hours per day (in free-tier, no prediction)
13. Solution: Image Proxy Server
14. Repo and how to use it https://github.com/kkdai/img-cache-server
15. Repo and how to use it (Cont.)
16. Demo