Upgrade to Pro — share decks privately, control downloads, hide ads and more …
Sign up for free

How to use Golang download YouTube video

Sponsored · Ship Features Fearlessly Turn features on and off without deploys. Used by thousands of Ruby developers. →
Avatar for LINE Developers Taiwan LINE Developers Taiwan PRO
May 26, 2020
Technology
20k
3

How to use Golang download YouTube video

by Evan Lin @Golang Taipei Meetup #49

Avatar for LINE Developers Taiwan

LINE Developers Taiwan PRO

May 26, 2020

More Decks by LINE Developers Taiwan

See All by LINE Developers Taiwan
Evan 2026-09-12 國立臺中科技大學 x LINE PROTOSTAR 創新創業競賽- LINE 技術應用說明
Avatar for LINE Developers Taiwan line_developers_tw
PRO
0
310
Evan 2026-09-12 國立臺中科技大學 x LINE PROTOSTAR 創新創業競賽- LINE API應用介紹
Avatar for LINE Developers Taiwan line_developers_tw
PRO
0
290
Zona Codex Community Meetup 分享
Avatar for LINE Developers Taiwan line_developers_tw
PRO
0
1.3k
Evan & Zona COSCUP 2026 分享
Avatar for LINE Developers Taiwan line_developers_tw
PRO
0
320
台大資管營企業參訪-Bowen Chen
Avatar for LINE Developers Taiwan line_developers_tw
PRO
0
120
2026TECHFRESH畢業分享會 - AI 時代的人生存檔點
Avatar for LINE Developers Taiwan line_developers_tw
PRO
0
3.3k
2026TECHFRESH畢業分享會 - 原生還是跨平台? App 開發踩坑實錄
Avatar for LINE Developers Taiwan line_developers_tw
PRO
0
3.3k
2026TECHFRESH畢業分享會 - 葬送的通靈師：化系統與用戶雜訊成行動訊號
Avatar for LINE Developers Taiwan line_developers_tw
PRO
0
3.2k
2026 TECHFRESH 畢業分享會 - AI-Native 重塑軟體工程與虛擬講師
Avatar for LINE Developers Taiwan line_developers_tw
PRO
0
3.2k

Other Decks in Technology

See All in Technology
実体験から学ぶ分析エージェントの開発と運⽤
Avatar for Recruit recruitengineers
PRO
8
1.9k
SREでアラート疲れを 解決しよう！
Avatar for KairiM kairim0
1
220
「事実」を「計測」して、「解釈」する 〜AWS Lambdaのメモリ最適解の見つけ方〜
Avatar for maimyyym maimyyym
0
120
Claude Code本は、どのように執筆チームで書かれたか
Avatar for Oikon oikon48
1
360
DevelopersIO 2026 知識の地図を描く ─ オントロジーとは何か？
Avatar for Satoru Ishikawa ishikawa_satoru
1
1.3k
使いこなすために知っておきたい Azure SRE Agent アンチパターン
Avatar for Toru Makabe torumakabe
2
450
AIがコードを書く時代に、エンジニアは何で自分の価値を証明するのか / In an era where AI writes code how do engineers prove their value
Avatar for CARTA Engineering carta_engineering
1
750
オブザーバビリティを高める AI エージェント体験を考える / Designing AI Agent Experiences That Enhance Observability
Avatar for Kento Kimura aoto
PRO
2
320
組み立てて楽しむ AWS Blocks 入門
Avatar for たけのこ kmiya84377
0
220
OR学会2026年秋期大会_機械学習と数理最適化の融合による、配合レシピ最適化システム開発事例
Avatar for BrainPad brainpadpr
0
120
全人類（ほぼ）AWS Organizations の上でAWSを利用している、その世界を知る話
Avatar for Hayato Tan htan
1
130
実践！Cloud Run ハンズオン！！ / Cloud Run handson
Avatar for y-ohgi y0hgi
0
100

Featured

See All Featured
Public Speaking Without Barfing On Your Shoes - THAT 2023
Avatar for David Neal reverentgeek
1
590
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
Avatar for Tammy Everts tammyeverts
11
1.1k
Typedesign – Prime Four
Avatar for Hannes Fritz hannesfritz
42
3.2k
The Hidden Cost of Media on the Web [PixelPalooza 2025]
Avatar for Tammy Everts tammyeverts
2
510
Automating Front-end Workflow
Avatar for Addy Osmani addyosmani
1369
210k
Designing Powerful Visuals for Engaging Learning
Avatar for Mike Taylor tmiket
1
600
What does AI have to do with Human Rights?
Avatar for Per Axbom axbom
PRO
1
2.4k
Tips & Tricks on How to Get Your First Job In Tech
Avatar for Honza Javorek honzajavorek
1
790
A brief & incomplete history of 
UX Design for the World Wide Web: 1989–2019
Avatar for Jason CranfordTeague jct
2
530
SEO Brein meetup: CTRL+C is not how to scale international SEO
Avatar for Linda Hogenes lindahogenes
2
2.9k
What's in a price? How to price your products and services
Avatar for Michael Herold michaelherold
247
13k
Money Talks: Using Revenue to Get Sh*t Done
Avatar for Nikki Halliwell nikkihalliwell
0
520

Transcript

  1. How to use Golang download YouTube video LINE Developer Relations

    Evan Lin 2020.05 1

  2. Evan Lin • Google Developer Expert • LINE Developer Meetup

    • LINE TAIWAN TECHPULSE Organizer LINE Technology Evangelist 2

  3. 3

  4. How to get Youtube Video Info? https://www.youtube.com/watch?v=rFejpH_tAHM https://youtube.com/get_video_info?video_id=rFejpH_tAHM 4

  5. How to get Youtube Video Info? 5

  6. RAW Data 6

  7. How to parse with Query Parameter 7

  8. Get Video Author and Title How to handle JSON value

    without structure data. 8

  9. Let’s find the video download link 9

  10. How to process JSON data from Web Jsonlint.com à Paste

    and copy on text editor à Json to Go 10

  11. Using the file download link… 11

  12. Using the file download link… (what?) No url??? But new

    ”cipher”? 12

  13. Finally … https://stackoverflow.com /questions/60607291/you tube-video-downloader- with-php 13

  14. Look into browser player related setting https://www.youtube.com/embed/FHpvI8oGsuQ?hl=en https://www.youtube.com/s/player/e3cd195e/player_ias.vflset/en_US/base.js 14

  15. Make it simple … “string” EQ(“string”, 3) è c =

    ‘s’ è a[0] = a[2] = `r` è a[2] = `s` à “rtsing” 15

  16. Decipher :Operation 16

  17. Decipher : Parse Ops and Args https://github.com/kkdai/youtube/blob/master/decipher.go#L12 17

  18. Looking for contributors 18 https://github.com/kkdai/youtube

  19. LINE TECH FRESH https://engineering.linecorp.com/zh-hant/blog/tech-fresh-2020/ 19

  20. 20

  21. Q&A 21