Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Speaker Deck
PRO
Sign in
Sign up for free
Ruby on RailsでBitcoin App開発超入門
Shu Kobuchi
May 29, 2020
Programming
0
210
Ruby on RailsでBitcoin App開発超入門
Gotanda.rb#42でBitcoin×RubyのLTをさせていただきました。
https://gotanda-rb.connpass.com/event/174652/
Shu Kobuchi
May 29, 2020
Tweet
Share
More Decks by Shu Kobuchi
See All by Shu Kobuchi
Ethereum The Merge 〜これからのフルノード運用〜
shukob
0
47
ビットコイン・ライトニングネットワーク概論
shukob
0
37
NFTを開発するためのブロックチェーン・スマートコントラクト技術
shukob
1
400
Mastering the Lightning Network 第1章を読む補足資料
shukob
0
150
オープンソースが法定通貨になる!ビットコイン・ライトニングネットワーク入門
shukob
0
350
ビットコイン・ブロックチェーン入門
shukob
0
150
Bitcoin v0.21.0とSignetの使い方
shukob
0
230
Bitcoin Cashハードフォークの 振り返りと関連技術説明
shukob
0
200
ブロックチェーン初心者のためのビットコイン送金体験
shukob
1
200
Other Decks in Programming
See All in Programming
YATA: collaborative documents and how to make them fast
horusiath
1
170
Git Rebase
bkuhlmann
7
1.1k
Regular expressions basics/正規表現の基本
kishikawakatsumi
6
270
Automating Gradle benchmarks at N26
ubiratansoares
PRO
2
150
Google IO 2022 社内LT会 / What's new in Android development tools
shingo_kobayashi
1
420
料理の注文メニューの3D化への挑戦
hideg
0
300
Recap CDN, Edge, WebAssembly | ワインと鍋.js#1
sadnessojisan
2
1.2k
AWS Config Custom Rule、ノーコードでできるかな?
watany
0
250
Atomic Design とテストの○○な話
takfjp
2
820
ECサイトの脆弱性診断をいい感じにやりたい/OWASPKansaiNight_LT1_220727
owaspkansai
0
300
一口目から美味しいReactのスルメ本🦑
taro28
2
700
FutureCon 2022 FlutterアプリのPerformance測定
harukafujita
0
140
Featured
See All Featured
The Illustrated Children's Guide to Kubernetes
chrisshort
18
40k
Why You Should Never Use an ORM
jnunemaker
PRO
47
7.7k
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
21
1.4k
In The Pink: A Labor of Love
frogandcode
131
21k
Ruby is Unlike a Banana
tanoku
91
9.3k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
12
940
How To Stay Up To Date on Web Technology
chriscoyier
780
250k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
151
13k
The Invisible Customer
myddelton
110
11k
Six Lessons from altMBA
skipperchong
14
1.4k
Docker and Python
trallard
27
1.6k
Agile that works and the tools we love
rasmusluckow
319
19k
Transcript
3VCZPO3BJMTͰ #JUDPJO"QQ։ൃೖ ݄ ۚ !(PUBOEBSC খᔹप 4IV,PCVDIJ
ࣗݾհ খᔹपɹ4IV,PCVDIJɹ!TIV@LPCTIVLPCVDIJ ·Ͱͣͬͱؔ ʙલ৬ͷ4*FSͰେࡕ͔Β౦ژసۈ େ࡚ ʙϑϨηοπ จژ۠ຊڷ w
҉߸ࢿ࢈औҾۀऀ͚ΥϨοτϕϯμʔ ۠ͪΐͬͱࡏॅɺίϩφͰϑϧϦϞʔτʹɹ 2
ίϛϡχςΟհ ຊ҉߸௨՟ϢʔβձɹIUUQTDSZQUPDVSSFODZDPOOQBTTDPN ʮϏοτίΠϯͱ͔ษڧձʯʢ݄̍ճɿฏʣ w ۚ ʙɹDMJHIUOJOH -JHIUOJOH/FUXPSL ϋϯζΦϯ ʮ҉߸௨՟ಡॻձʯʢ݄̍ճɿฏʣ
w ࣍ճௐத ΞʔΧΠϒಈըଟ͋Γ·͢ 3
ϏοτίΠϯͱ͔ ϒϩοΫνΣʔϯ ษڧͯ͠Έ͍ͨΜ͚ͩͲͶ
ϏοτίΠϯͱ͔ ϒϩοΫνΣʔϯ ษڧͯ͠Έ͍ͨΜ͚ͩͲͶ Α͘ฉ͘ηϦϑͰ͢
ϏοτίΠϯΛֶͿʹ 5FTUOFUରԠΥϨοτΛೖΕͯɺ5FTUOFUίΠϯΛૹۚͯ͠༡ΜͰΈΔ -JOVYଟগͳΓͱ৮ΕΔͳΒ #JUDPJO$PSF CJUDPJOE ΛΠϯετʔϧͯ͠ίϚϯυΛୟ͍ͯΈΔ ϓϩάϥϛϯάଟগͳΓͱͰ͖ΔͳΒ #JUDPJO$PSFͷίϚϯυΛϥοϐϯά͢ΔΞϓϦΛ։ൃ 6 .BJOOFU
5FTUOFU 3FHUFTU ελϯυΞϩϯ
#JUDPJOͱ3VCZϥΠϒϥϦͱॻ੶ #JUDPJO$PSFʢ$ ʣ IUUQTHJUIVCDPNCJUDPJOCJUDPJO CJUDPJOSCʢ3VCZϥΠϒϥϦʣ IUUQTHJUIVCDPNDIBJOUPQFCJUDPJOSC PQFOBTTFUTSCʢ3VCZϥΠϒϥϦʣ IUUQTHJUIVCDPNDIBJOUPQFPQFOBTTFUTSC ଞʹϒϩοΫνΣʔϯ3VCZϥΠϒϥϦଟ IUUQTHJUIVCDPNDIBJOUPQF
ॻ੶ʮϒϩοΫνΣʔϯɾϓϩάϥϛϯάԾ௨՟ೖʯ CJUDPJOSVCZCJUDPJOSC͕ޙܧ PQFOBTTFUTSVCZPQFOBTTFUTSC͕ޙܧ վగ༧ఆ 7
؆୯ͳγεςϜਤ CJUDPJOͷ3VCZϥΠϒϥϦʮCJUDPJOSCʯΛ༻͍ͯ#JUDPJO$PSFͱ+TPO31$ "1*Λ༻͍Δ 8 #FSLFMZ %# /P42- #JUDPJO$PSF 3VCZPO3BJMT CJUDPJOSC
ϥΠϒϥϦ DPOUSPMMFS 31$3FRVFTU +40/3FTQPOTF WJFX
CJUDPJODMJίϚϯυ IUUQTHJUIVCDPNTIVLPCSBJMTCJUDPJOSBJMTCJUDPJO ΛࢀߟʹCJUDPJOEΛΠϯετʔϧ CJUDPJODMJHFUOFXBEESFTT UCRDB[E[GSYZHVSWFEQSHE[XXGQ[YFKSB CJUDPJODMJTFOEUPBEESFTT UCRDB[E[GSYZHVSWFEQSHE[XXGQ[YFKSB GDCBFECDCCFCDBCEGFFFG DF⒎EE CJUDPJODMJHFUSBXUSBOTBDUJPO
GDCBFECDCCFCDBCEGFFFG DF⒎EE 9
CJUDPJODMJͱCJUDPJO31$ϝιουͷରԠ CJUDPJODMJHFUOFXBEESFTT UCRDB[E[GSYZHVSWFEQSHE[XXGQ[YFKSB CJUDPJODMJTFOEUPBEESFTT UCRDB[E[GSYZHVSWFEQSHE[XXGQ[YFKSB GDCBFECDCCFCDBCEGFFFG DF⒎EE CJUDPJODMJHFUSBXUSBOTBDUJPO GDCBFECDCCFCDBCEGFFFG DF⒎EE
10 bitcoinRPC('getnewaddress',[]) bitcoinRPC('sendtoaddress',[address, amount]) bitcoinRPC('getrawtransaction',[txid])
DPOUSPMMFS SBJMTOFXCJUDPJO@BQQ BQQDPOUSPMMFSTCJUDPJO@BQQ@DPOUSPMMFSSC 11 require 'bitcoin' require 'net/http' require 'json'
Bitcoin.chain_params = :regtest RPCUSER="hoge" RPCPASSWORD="hoge" HOST="localhost" PORT=18443 class BitcoinAppController < ApplicationController def index @blockchaininfo = bitcoinRPC('getblockchaininfo',[]) render template: ‘bitcoin_app/index' end private def bitcoinRPC(method,param) http = Net::HTTP.new(HOST, PORT) request = Net::HTTP::Post.new('/') request.basic_auth(RPCUSER,RPCPASSWORD) request.content_type = 'application/json' request.body = {method: method, params: param, id: 'jsonrpc'}.to_json JSON.parse(http.request(request).body)["result"] end end end bitcoinRPC('getblockchaininfo',[])
WJFXͱSPVUFT BQQWJFXTCJUDPJO@BQQJOEFYIUNMFSC 12 DPOpHSPVUFTSC <td><%= @blockchaininfo %></td> Rails.application.routes.draw do get
'/', to: 'bitcoin_app#index' get '/index', to: 'bitcoin_app#index' end SBJMTT
։ൃྫ ϒϩοΫϋογϡɺϒϩοΫߴɺτϥϯβΫγϣϯ*%ɺΞυϨεͱ͍͏छྨ Λݕࡧ૭ͭͰ͍͍ͯ͞Δ ܧଓ։ൃதɿIUUQTHJUIVCDPNTIVLPCSBJMTCJUDPJO 13
ࢀߟࢿྉ
ϒϩοΫνΣʔϯΤΫεϓϩʔϥ ༷ʑͳ։ൃݩ͔ΒϒϩοΫνΣʔϯΤΫεϓϩʔϥ͕ఏڙ͞Ε͍ͯΔ IUUQTCMPDLTUSFBNJOGP IUUQTHJUIVCDPNCMPDLTUSFBNFTQMPSB w #MPDLTUSFBNFTQMPSB044ʢ3VCZͰͳ͍ʣ 15
ϒϩοΫҰཡ ϒϩοΫνΣʔϯΤΫεϓϩʔϥͷτοϓϒϩοΫҰཡͰ͋Δ͜ͱ͕ଟ͍ τοϓͷϒϩοΫҰཡ͕JOEFYʹ͢Δ ϧʔςΟϯάઃఆ CJUDPJODMJHFUCMPDLDIBJOJOGPͰ࠷৽ϒϩοΫߴΛऔಘ ࠷৽ϒϩοΫߴ͔Β߱ॱʹ CJUDPJODMJHFUCMPDLIBTICMPDLIFJHIUͰϒϩοΫϋογϡΛಘͯɺ CJUDPJODMJHFUCMPDLCMPDLIBTIͰϒϩοΫͷதΛಘΔ ϒϩοΫͷ͕ଟ͘ͳͬͨΒɺϖʔδωʔγϣϯΛೖΕΔ 16
ϒϩοΫͷใ ؆୯ HFUCMPDLCMPDLIBTIͷΑ͏ͳײ͡ͰΫΤϦʹϒϩοΫϋογϡ CJUDPJODMJHFUCMPDLCMPDLIBTI Ϩεϙϯεͷ+TPOΛ7JFXʹૹΓ͜ΜͰඞཁͳσʔλΛදࣔ HFUCMPDLͷ͍͍ͱ͜Ζঝೝ࣍ͷϒϩοΫϋογϡؚΊͯڭ͑ͯ͘ΕΔ ͪΖΜલͷϒϩοΫϋογϡ 17
ΞϦε͕Ϙϒʹ#5$ΛૹΔ Ҏલड͚औֹ͍ͬͯͨΛ߹ࢉͯ͠ɺ૬खʹૹΓɺ͓Γࣗ 59தʹهࡌͷͳֹ͍ ͜͜Ͱ#5$ ޙʹϚΠφʔ τϥϯβΫγϣϯ5SBOTBDUJPO59 18 ΞϦε Ϙϒ 5SBOTBDUJPO
59 */165 065165 ΞϦε Ωϟϩϧ ΞϦεˠϘϒ #5$ ΩϟϩϧˠΞϦε #5$ ΞϦεˠΞϦε ͓Γ #5$ #5$ σϏοτˠΞϦε #5$ #5$ σϏοτ ܭ#5$ ܭ#5$ ϚΠφʔ ωοτϫʔΫखྉ #5$ ˞59ʹهࡌͳ͍ ൿີ伴Λࠩ͠ࠐΜͰ ϩοΫղআɿిࢠॺ໊ ΞϦεͷ ൿີ伴 ΞϦεͷ ൿີ伴 ΞϦεͷ ެ։伴 Ϙϒͷ ެ։伴 ΞϦεͷ ެ։伴 ΞϦεͷ ެ։伴
τϥϯβΫγϣϯใ ໘ HFUUYUYJEͷΑ͏ͳײ͡ͰUYJEΛΫΤϦʹ CJUDPJODMJHFUSBXUSBOTBDUJPOUYJE SFTQPOTFSBXUSBOTBDUJPO CJUDPJODMJEFDPEFSBXUSBOTBDUJPOSBXUSBOTBDUJPO SFTQPOTFͷதʹPVUQVUͷΞυϨεɾૹֹؚۚ·ΕΔ͕ɺJOQVUͷΞυ Ϩεɾֹखྉؚ·Εͳ͍ w CJUDPJODMJHFUUSBOTBDUJPOUYJEͩͱڭ͑ͯ͘ΕΔ͕ɺ#JUDPJO$PSF
ࣗͷXBMMFUͷUYͷΈ JOQVU෦ WJO ͷUYJE WPVU͔ΒHFUSBXUSBOTBDUJPO EFDPEFSBXUSBOTBDUJPOͰJOQVUͷΞυϨεͱֹΛٻΊΔ खྉʹJOQVU෦ͷ߹ܭֹʔPVUQVU෦ͷ߹ܭֹ 19
τϥϯβΫγϣϯͷঝೝɺ༻ࡁ EFDPEFSBXUSBOTBDUJPOSBXUSBOTBDUJPOͷ3FTQPODFʹϒϩοΫঝೝ ؚ·Ε͍ͯͳ͍ CJUDPJODMJHFUCMPDLDIBJOJOGPͰ࠷৽ͷϒϩοΫߴΛऔಘ ࠷৽ͷϒϩοΫߴ͔Β߱ॱʹHFUCMPDLIBTI HFUCMPDLͰϒϩοΫͷUYJEΛ ݟ͍͖ͯɺରͷUYΛؚΉϒϩοΫ͔ΒঝೝΛಘΔ CJUDPJODMJHFUUYPVUUYJEWPVU͕ଘࡏ͢Εະ༻ɺͳ͚Ε༻ࡁ 20
औΓѻ͍ҙͷ59 $PJOCBTF59ͷ*OQVU WJOʹUYJE͕ͳ͍ͳͲͯ͠ผ (FOFTJT#MPDLͷ59 CJUDPJODMJHFUSBXUSBOTBDUJPOUYJEͰऔಘͰ͖ͳ͍ ϋʔυίʔσΟϯά͞Εͨ59 59*% BFFCBBCGBBDCDGGFDDBCCBGE
FEBC ͜ͷ59*%.BJOOFU 5FTUOFU 3FHUFTU 4JHOFUڞ௨ 21
ΞυϨεใ HFUBEESFTTBEESFTTͷΑ͏ͳײ͡ͰBEESFTTΛΫΤϦʹ ͓ΈͰCJUDPJODMJWBMJEBUFBEESFTTBEESFTTͰ༗ޮͳΞυϨε͔Ͳ͏͔ CJUDPJODMJHFUSBXNFNQPPMͰNFNQPPMͷUYJEΛऔಘ CJUDPJODMJHFUCMPDLDIBJOJOGPͰ࠷৽ͷϒϩοΫߴΛऔಘ ࠷৽ͷϒϩοΫߴ͔Β߱ॱʹHFUCMPDLIBTI HFUCMPDLͰϒϩοΫͷUYJEΛ औಘ HFUSBXUSBOTBDUJPOUYJE EFDPEFSBXUSBOTBDUJPOSBXUSBOTBDUJPOͰ
WPVUʹΞυϨε͕͋Δ͔ΛݟΔ WJOͷUYJEHFUSBXUSBOTBDUJPOUYJE EFDPEFSBXUSBOTBDUJPO SBXUSBOTBDUJPOͰWPVUʹΞυϨε͕͋Δ͔ΛݟΔ ΞυϨεʹؔ͋Δ59ͷใΛ࣌ܥྻͷ߱ॱʹฒΔ NFNQPPMͷ59͕Ұ൪্ ঝೝͳͲτϥϯβΫγϣϯҰཡΛࢀߟʹ 22
ΞυϨεใ CJUDPJODMJHFUUYPVUUYJEWPVU͕ଘࡏ͢Εະ༻ɺͳ͚Ε༻ࡁ ະ༻ͷ6590Λ͔͖ूΊͯߴܭࢉ͕Մೳ $PJOCBTF59ঝೝ͠ͳ͍ͱ͑ͳ͍ ΞυϨεҰཡը໘ͰΞυϨεʹؔ͢Δશ59ͷঝೝ·ͰٻΊ͍ͯͨΒॲཧ ͕ऴΘΒͳ͍ʢۤসʣ3FHUFTUͰ ͦΖͦΖ%#ͷग़൪ 23
ݕࡧ ϒϩοΫϋογϡɺϒϩοΫߴɺ59*%ɺΞυϨεͰͷݕࡧϑΟʔϧυ QPTU ύϥϝʔλͷαΠζ͕ͷ߹ ϒϩοΫϋογϡ͔59*% BFFCBBCGBBDCDGGFDDBCC BGEFEBCͷ߹ɺ(FOFTJTϒϩοΫͷ59*% HFUSBXUSBOTBDUJPOUYJEͰϨεϙϯε͕͋Ε59 HFUCMPDLIBTICMPDLIBTIͰϨεϙϯε͕͋ΕϒϩοΫ
ύϥϝʔλͷαΠζ͕ɺ .BJOOFUɾ4JHOFUCFDI ɾ 5FTUOFUɾ 3FHUFTU CFDI ͷ͍ͣΕ͔ͷ߹ΞυϨε ύϥϝʔλ͕ͷ߹ɺϒϩοΫߴ HFUCMPDLIBTIQBSBNTͰϨεϙϯε͕͋ΕɺϒϩοΫ ͦΕͧΕɺϒϩοΫใɺτϥϯβΫγϣϯใɺΞυϨεใͷؔʹ SFEJSFDU ͍ͣΕͰͳ͍߹OPUGPVOEը໘ 24