Build LINE Bot with Go - Speaker Deck

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Go LINE Developer Relations Evan Lin 2020.05

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Agenda •Who am I? Why I learn Go? •What is Go? •Using Golang to build LINE Bot •How I became GDE? •LINE TECH FRESH •Q&A

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Evan Lin • Google Developer Expert • LINE Developer Meetup • LINE TAIWAN TECHPULSE Organizer LINE Technology Evangelist

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My history background

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Windows Application Developer 10+

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Web application development Surveillance Smart Home

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Our Tech Stack. (before)

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My (ex) boss told me.. I have secret tip..

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What is pokemon Go?

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What is Go • Create by Google • Design by • Ken Thompson • Rob Pike • Robert Griesemer • Feature: • Compiled • Statically Typed • Garbage Collection

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Go is fast!

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gofmt / goimport

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? • Forget import package • • if else • Indent • Demo: https://play.golang.org/p/DD0r3d25E4C

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”go test” save your time for testing https://play.golang.org/p/jynzyytYzhC https://play.golang.org/p/P_P_bmOqlCB

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“godoc” help you build documentation https://pkg.go.dev/github.com/kkdai/youtube?tab=doc

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Goroutine: https://play.golang.org/p/rjT7yXqft_C Unbuffered Channel: https://play.golang.org/p/zaNUS8IhzfT Buffered Channel: • https://tour.golang.org/concurrency/3 • https://tour.golang.org/concurrency/4

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https://tour.golang.org/list “A tour for Go” to learn more detail.

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https://go-tour-zh-tw.appspot.com/basics/1 (Wait a second…)

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Learn Go from LINE chatbot

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Why using chatbot as example?

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What is LINE Chatbot

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Create LINE Bot within 5 mins •Request channel for LINE Bot •Deploy LINE Bot server on Heroku •Change related setting on Channel •Go ! Online (video) •How to modify it? (video)

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Build advanced Chatbot in Go https://youtu.be/B9m_6brhkdc https://github.com/kkdai/LineBotPetNeedMe

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How to become Go GDE

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How I became Go GDE l learn Go • Blog post (weekly) • Write everything with Go • SHARE! SHARE! SHARE!! With everyone

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How to write more blog posts • Start from learning note. • TIL (Today I learn) is the best practice. • Writing is the best way to learn deeper.

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Writing everything with Go https://github.com/kkdai/project52

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Learn new Go features • Learn new features using `go get` • Learn from document • Write related into your language TIL.

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SHARE! SHARE! SHARE!! • Meetup/Conference approach learning • Share >>> Learn • Open mind

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Attend COSCUP 2020

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Can’t get the ticket?

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Conference Speaker is who cannot get ticket willing to share! - anonymous

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COSCUP 2020 CFP https://blog.coscup.org/2020/04/coscup-2020-cfp-is-now-open.html#go https://blog.coscup.org/2020/04/coscup-2020-cfp-is-now-open.html#chatbot