brewinstallnodebrew

nodebrew-v

nodebrew1.0.1Usage:nodebrewhelpShowthismessagenodebrewinstall<version>Downloadandinstall<version>(frombinary)nodebrewcompile<version>Downloadandinstall<version>(fromsource)nodebrewinstall-binary<version>Aliasof`install`(Forbackwardcompatibility)nodebrewuninstall<version>Uninstall<version>nodebrewuse<version>Use<version>nodebrewlistListinstalledversionsnodebrewlsAliasfor`list`nodebrewls-remoteListremoteversionsnodebrewls-allListremoteandinstalledversionsnodebrewalias<key><value>Setaliasnodebrewunalias<key>Removealiasnodebrewclean<version>|allRemovesourcefilenodebrewselfupdateUpdatenodebrewnodebrewmigrate-package<version>InstallglobalNPMpackagescontainedin<version>tocurrentversionnodebrewexec<version>--<command>Execute<command>usingspecified<version>Example:#installnodebrewinstallv8.9.4#useaspecificversionnumbernodebrewusev8.9.4

nodebrewinstall-binarylatest

Fetching:https://nodejs.org/dist/v15.5.0/node-v15.5.0-darwin-x64.tar.gz########################################################################100.0%Installedsuccessfully

nodebrewuselatest

usev15.5.0

echo'exportPATH=$HOME/.nodebrew/current/bin:$PATH'>>~/.bash_profile

node-v

v15.5.0

npminstall-g@vue/devtools

added201packages,andaudited202packagesin21s6packagesarelookingforfundingrun`npmfund`fordetailsfound0vulnerabilities

vue-devtools

yarn add express --save

constexpress=require('express')constapp=express()constport=3000app.get('/',(req,res)=>{res.send('Hello World!')})app.listen(port,()=>{console.log(`Example app listening at http://localhost:${port}`)})

yarn global add koa

constKoa=require('koa');constapp=newKoa();// responseapp.use(ctx=>{ctx.body='Hello Koa';});app.listen(3000);

yarn add fastify --save

// Require the framework and instantiate itconstfastify=require('fastify')({logger:true})// Declare a routefastify.get('/',async(request,reply)=>{return{hello:'world'}})// Run the server!conststart=async()=>{try{awaitfastify.listen(3000)fastify.log.info(`server listening on ${fastify.server.address().port}`)}catch(err){fastify.log.error(err)process.exit(1)}}start()

yarn add hapi --save

constHapi=require('hapi');constinit=async()=>{constserver=Hapi.server({port:3000,host:'localhost'});server.route({method:'GET',path:'/',handler:(request,h)=>{return'Hello World!';}});awaitserver.start();console.log('Server running on %s',server.info.uri);};process.on('unhandledRejection',(err)=>{console.log(err);process.exit(1);});init();

$ yarn global add @adonisjs/cli
$ adnis new demo
$ cd demo
$ adonis serve --dev

$ git clone https://github.com/totaljs/emptyproject.git
$ cd emptyproject
$ yarn
$ node index.js

$ yarn global add sails
$ sails new test-project

Choose a template for your new Sails app:
1. Web App  ·  Extensible project with auth, login, & password recovery
2. Empty    ·  An empty Sails app, yours to configure
(type"?"for help, or <CTRL+C> to cancel)
?

$ cd test-project
$ sails lift

$ yarn global add ghost-cli
$ mkdir myapp
$ cd myapp
$ ghost install local

if(($+commands[arch] ));then
    alias x64='exec arch -arch x86_64 "$SHELL"'alias a64='exec arch -arch arm64e "$SHELL"'fi

% arch
arm64

% /bin/bash -c"$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

% which brew
/opt/homebrew/bin/brew

% brew install-v node yarn git gnupg

% a64
% uname-m
x86_64

% /bin/bash -c"$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

% which brew
/usr/local/bin/brew

% brew install-v node@14 yarn

if[[$(uname-m)="x86_64"]];then
  typeset-U path PATH
  path=($HOME/bin(N-/)
    /usr/local/opt/node\@14/bin(N-/)
    /usr/local/bin(N-/)
    /usr/local/sbin(N-/)$path)export LDFLAGS="-L/usr/local/opt/node@14/lib"export CPPFLAGS="-I/usr/local/opt/node@14/include"else
  typeset-U path PATH
  path=($HOME/bin(N-/)
    /opt/homebrew/bin(N-/)
    /opt/homebrew/sbin(N-/)
    /usr/local/bin(N-/)
    /usr/local/sbin(N-/)$path)export LDFLAGS=""export CPPFLAGS=""fi

$ mkdir myapp
$ cd myapp

$ npm init

$ npm install express --save

constexpress=require('express')constapp=express()constport=3000app.get('/',(req,res)=>{res.send('Hello World!')})app.listen(port,()=>{console.log(`Example app listening at http://localhost:${port}`)})

$ node app.js

npm install
npm install express

mkdir public
move  /y .\img .\public\
move  /y .\robot .\public\
move  /y .\robot .\public\
move  /y .\base-robot.js .\public\
move  /y .\base-robot.ls .\public\
move  /y .\*.js .\public\
move  /y .\*.ls .\public\
move  /y .\*.html .\public\
move  /y .\Makefile .\public\
echo nul > server.js

constexpress=require('express')constapp=express()app.use(express.static('public'))constport=3000app.get('/',(req,res)=>{res.send('index.html')})app.listen(port,()=>{console.log(`listening at http://localhost:${port}`)})

node server.js

$ curl -L git.io/nodebrew | perl - setup

========================================
Export a path to nodebrew:

export PATH=$HOME/.nodebrew/current/bin:$PATH
========================================

$ export PATH=$HOME/.nodebrew/current/bin:$PATH

$ nodebrew -v

$ node -v

$ nodebrew install-binary stable

$ nodebrew use v14.15.3

$ nodebrew ls

v14.15.3
v15.5.0

current: v14.15.3

[{lessonName:'C#入門',lessonUrl:'https://dotinstall.com/lessons/basic_csharp',completeTime:'01:49:23',incompleteTime:'00:21:01'},{......}]

$ npm init -y$ npm i -S puppeteer readline-sync

constpuppeteer=require('puppeteer');// awaitを使うためasync関数を定義する。asyncfunctionmain(){// puppeteerのブラウザを起動する。constbrowser=awaitpuppeteer.launch();// ブラウザの新しいタブを開く。constpage=awaitbrowser.newPage();// googleにアクセスする。awaitpage.goto('https://google.com');// スクショを撮る。awaitpage.screenshot({path:'test.png'});// ブラウザを閉じる。awaitbrowser.close();}main();

constpuppeteer=require('puppeteer');constreadlineSync=require('readline-sync');asyncfunctionmain(){// メールアドレスを入力させる。constmail=readlineSync.question('mail: ');// パスワードを入力させる。オプションで入力内容を出力させない。constpassword=readlineSync.question('password: ',{hideEchoBack:true});console.log(mail,password);}main();

constpuppeteer=require('puppeteer');constreadlineSync=require('readline-sync');asyncfunctionmain(){......// ログインページへの遷移awaitpage.goto('https://dotinstall.com/login');// メールアドレスとパスワードの入力awaitpage.evaluate(text=>document.querySelector('#mail').value=text,mail);awaitpage.evaluate(text=>document.querySelector('#password').value=text,password);// ログインボタン押下awaitpage.click('#login_button');......

asyncfunctionmain(){......awaitPromise.all([page.waitForNavigation({waitUntil:['load','networkidle2']}),page.click('#login_button')]);awaitPromise.all([page.waitForNavigation({waitUntil:['load','networkidle2']}),page.click('a.user-name')]);consturls=awaitpage.evaluate(()=>{consturls=[];constaElements=document.querySelectorAll('.cardBox > h3 > a');for(constaElementofaElements){urls.push(aElement.getAttribute('href'));}returnurls;});constresult=[];for(consturlofurls){constlessonUrl='https://dotinstall.com'+url;awaitpage.goto(lessonUrl,{waitUntil:['load','networkidle2']});// 負荷軽減のため3秒待機するawaitpage.waitForTimeout(3000);constlessonName=awaitpage.$eval('.package-info-title span',element=>element.innerHTML);const[completeTime,incompleteTime]=awaitpage.evaluate(()=>{letcompleteTime=0;letincompleteTime=0;constsectionElements=document.querySelectorAll('#lessons_list > li');for(constsectionElementofsectionElements){consttime=sectionElement.querySelector('.lessons-list-title > span').innerHTML;const[,min,sec]=time.match(/\((\d\d)\:(\d\d)\)/);constseconds=parseInt(min)*60+parseInt(sec);constisCompleted=sectionElement.querySelector('.lesson_complete_button > span').innerHTML==='完了済';if(isCompleted){completeTime+=seconds;}else{incompleteTime+=seconds;}}return[completeTime,incompleteTime];});functionsec2time(sec){return`${parseInt(sec/3600)}:${parseInt((sec/60)%60)}:${sec%60}`;}result.push({lessonName,lessonUrl,completeTime:sec2time(completeTime),incompleteTime:sec2time(incompleteTime)});}console.log(result);......

$ mkdir myapp
$ cd myapp
$ npm init

"use strict";constnodemailer=require("nodemailer");asyncfunctionmain(){lettransporter=nodemailer.createTransport({ignoreTLS:true,port:1025,secure:false,// true for 465, false for other ports});letinfo=awaittransporter.sendMail({from:'"Fred Foo 👻" <foo@example.com>',// sender addressto:" s@gmail.com",// list of receiverssubject:"成功！！！！",// Subject linetext:"サンプルテキストです",// plain text body});console.log("送られたメッセージ: %s",info.messageId);}main().catch(console.error);

$ npm install -g maildev
$ maildev

$ node contact.js

>mkdir electron
>cd electron
>yarn init

>yarn add electron

<!DOCTYPE html><htmllang="en"><head><metacharset="UTF-8"/><title>Electron App</title></head><body><p>Home</p><buttonid="logout"class="btn">Logout</button></body></html>

const{BrowserWindow}=require("electron");functioncreateAppWindow(){letwin=newBrowserWindow({width:1000,height:600,webPreferences:{nodeIntegration:true,enableRemoteModule:true,},});win.loadFile("./renderers/home.html");win.on("closed",()=>{win=null;});}module.exports=createAppWindow;

const{app}=require('electron');constcreateAppWindow=require('./main/app-process');asyncfunctionshowWindow(){try{returncreateAppWindow();}catch(err){// TODO 認証}}app.on('ready',showWindow);app.on('window-all-closed',()=>{app.quit();});

"scripts":{"start":"electron ./main.js"}

>yarn start

const{BrowserWindow}=require('electron');constcreateAppWindow=require('../main/app-process');letwin=null;functioncreateAuthWindow(){destroyAuthWin();win=newBrowserWindow({width:1000,height:600,webPreferences:{nodeIntegration:false,enableRemoteModule:false}});win.loadURL('http://localhost:8080/auth/realms/electron/protocol/openid-connect/auth?'+'scope=openid profile offline_access&'+'response_type=code&'+'client_id=test&'+'redirect_uri=http://localhost/callback');const{session:{webRequest}}=win.webContents;constfilter={urls:['http://localhost/callback*']};webRequest.onBeforeRequest(filter,async()=>{// TODO トークン取得createAppWindow();returndestroyAuthWin();});win.on('closed',()=>{win=null;});}functiondestroyAuthWin(){if(!win)return;win.close();win=null;}module.exports={createAuthWindow,};

...constcreateAppWindow=require('./main/app-process');const{createAuthWindow}=require('./main/auth-process');// 追加asyncfunctionshowWindow(){// return createAppWindow(); 一旦コメントアウトreturncreateAuthWindow();}...

>yarn start

...functioncreateLogoutWindow(){constlogoutWindow=newBrowserWindow({show:false,});logoutWindow.loadURL('http://localhost:8080/auth/realms/electron/protocol/openid-connect/logout');logoutWindow.on('ready-to-show',async()=>{logoutWindow.close();// TODO クライアント側のログアウト処理});}module.exports={createAuthWindow,createLogoutWindow,// 追加};

const{remote}=require("electron");constauthProcess=remote.require("./main/auth-process");document.getElementById("logout").onclick=()=>{authProcess.createLogoutWindow();remote.getCurrentWindow().close();};

<htmllang="en">

  ...

  <script src="home.js"></script></html>

>yarn start

>yarn add axios
>yarn add jwt-decode

constjwtDecode=require("jwt-decode");constaxios=require('axios');constcrypto=require('crypto');consturl=require('url');letcodeVerifier=null;letaccessToken=null;letprofile=null;functiongetAccessToken(){returnaccessToken;}functiongetProfile(){returnprofile;}asyncfunctionloadTokens(callbackURL){consturlParts=url.parse(callbackURL,true);constquery=urlParts.query;varparams=newURLSearchParams();params.append('grant_type','authorization_code');params.append('client_id','test');params.append('code',query.code);params.append('redirect_uri','http://localhost/callback');params.append('code_verifier',codeVerifier);try{constresponse=awaitaxios.post('http://localhost:8080/auth/realms/electron/protocol/openid-connect/token',params);accessToken=response.data.access_token;profile=jwtDecode(response.data.id_token);}catch(error){// TODO ログアウトthrowerror;}}functiongetChallenge(){codeVerifier=base64URLEncode(crypto.randomBytes(32));returnbase64URLEncode(sha256(codeVerifier));}functionsha256(buffer){returncrypto.createHash('sha256').update(buffer).digest();}functionbase64URLEncode(str){returnstr.toString('base64').replace(/\+/g,'-').replace(/\//g,'_').replace(/=/g,'');}module.exports={getChallenge,getAccessToken,getProfile,loadTokens,};

const{BrowserWindow}=require('electron');constcreateAppWindow=require('../main/app-process');constauthService=require('../services/auth-service');// 追加...functioncreateAuthWindow(){...　win.loadURL('http://localhost:8080/auth/realms/electron/protocol/openid-connect/auth?'+'scope=openid profile offline_access&'+'response_type=code&'+'client_id=test&'+'code_challenge='+authService.getChallenge()+'&'+// 追加'code_challenge_method=S256&'+// 追加'redirect_uri=http://localhost/callback');...webRequest.onBeforeRequest(filter,async({url})=>{// パラメータにurlを追加awaitauthService.loadTokens(url);// 追加createAppWindow();returndestroyAuthWin();});...}...

  ...

  <body><p>Home</p><div><!-- ここから追加--><textareaid="token"rows="12"cols="120"></textarea><textareaid="profile"rows="8"cols="120"></textarea></div><!-- ここまで--><buttonid="logout">Logout</button></body>

  ...

</html>

const{remote}=require("electron");constauthProcess=remote.require("./main/auth-process");constauthService=remote.require("./services/auth-service");// 追加constwebContents=remote.getCurrentWebContents();// 追加// 追加webContents.on("dom-ready",()=>{consttoken=authService.getAccessToken();constprofile=authService.getProfile();document.getElementById("token").innerText=token;document.getElementById("profile").innerText=JSON.stringify(profile);});...

>yarn start

>yarn add keytar

constjwtDecode=require("jwt-decode");constaxios=require('axios');constkeytar=require("keytar");// 追加constos=require("os");// 追加constcrypto=require('crypto');consturl=require('url');letcodeVerifier=null;letaccessToken=null;letprofile=null;letrefreshToken=null;// 追加...// function追加asyncfunctionrefreshTokens(){constrefreshToken=awaitkeytar.getPassword('electron-openid-test',os.userInfo().username);if(refreshToken){varparams=newURLSearchParams();params.append('grant_type','refresh_token');params.append('client_id','test');params.append('refresh_token',refreshToken);try{constresponse=awaitaxios.post('http://localhost:8080/auth/realms/electron/protocol/openid-connect/token',params);accessToken=response.data.access_token;profile=jwtDecode(response.data.id_token);}catch(error){// TODO ログアウトthrowerror;}}else{thrownewError("No available refresh token.");}}...asyncfunctionloadTokens(callbackURL){...try{constresponse=......// 追加refreshToken=response.data.refresh_token;if(refreshToken){awaitkeytar.setPassword('electron-openid-test',os.userInfo().username,refreshToken);}}catch(error){...}}...module.exports={...refreshTokens,// 追加};

...constauthService=require('./services/auth-service');// 追加asyncfunctionshowWindow(){try{awaitauthService.refreshTokens();returncreateAppWindow();}catch(err){createAuthWindow();}}...

...asyncfunctionrefreshTokens(){...if(refreshToken){...try{...}catch(error){awaitlogout();// 追加throwerror;}}else{...}}asyncfunctionloadTokens(callbackURL){...try{...}catch(error){awaitlogout();// 追加throwerror;}}...// 追加asyncfunctionlogout(){awaitkeytar.deletePassword('electron-openid-test',os.userInfo().username);accessToken=null;profile=null;refreshToken=null;}module.exports={...logout,// 追加};

...functioncreateLogoutWindow(){...logoutWindow.on('ready-to-show',async()=>{logoutWindow.close();awaitauthService.logout();// 追加});}...

...asyncfunctionloadTokens(callbackURL){consturlParts=url.parse(callbackURL,true);constquery=urlParts.query;varparams=newURLSearchParams();params.append('grant_type','authorization_code');params.append('client_id','test');params.append('code',query.code);params.append('redirect_uri','http://localhost/callback');params.append('client_assertion_type','urn:ietf:params:oauth:client-assertion-type:jwt-bearer');params.append('client_assertion',generateClientAssertion());try{constresponse=awaitaxios.post('http://localhost:8080/auth/realms/electron/protocol/openid-connect/token',params);accessToken=response.data.access_token;profile=jwt.decode(response.data.id_token);console.log(profile);}catch(error){throwerror;}}functiongenerateClientAssertion(){constnow=newDate();constiatValue=now.getTime();now.setMinutes(now.getMinutes()+1);constexpValue=now.getTime();constpayload={aud:'http://localhost:8080/auth/realms/electron/protocol/openid-connect/token',// トークンエンドポイントのURLexp:expValue,// トークンの有効期限jti:Math.random().toString(32).substring(2),　// ユニークな値(今回はランダム文字列を簡易生成)iat:iatValue,// トークンを署名した時刻iss:'http://localhost:3000/',// JWT を署名したクライアントの識別子sub:'test'// keycloakに登録したクライアントID};returnsign(payload);}functionsign(payload){constkeyFile=fs.readFileSync('keys/keystore.p12');// ファイル読み込みconstkeyBase64=keyFile.toString('base64');// Stringで取得constp12Der=forge.util.decode64(keyBase64);// base64からデコードconstp12Asn1=forge.asn1.fromDer(p12Der);// ASN.1オブジェクトを取得constp12=forge.pkcs12.pkcs12FromAsn1(p12Asn1,'test');// p12として読み込みconstprivateKey=p12.getBags({bagType:forge.pki.oids.pkcs8ShroudedKeyBag})[forge.pki.oids.pkcs8ShroudedKeyBag][0].key;// 秘密鍵取得constrsaPrivateKey=forge.pki.privateKeyToAsn1(privateKey);// RSA秘密鍵に変換constprivateKeyInfo=forge.pki.wrapRsaPrivateKey(rsaPrivateKey);// PrivateKeyInfoでラップconstpemPrivate=forge.pki.privateKeyInfoToPem(privateKeyInfo);// PEM形式に変換constsignedJwt=jwt.sign(payload,pemPrivate,{algorithm:'RS256'});// JWTに署名returnsignedJwt;}...

console.log("Hello World!")

node nodeapp.js
Hello World!

constfs=require('fs')

//ファイルモジュールを導入constfs=require('fs')//ファイルを作成し、文字を書くfs.writeFileSync('notes.txt','Hello, this is the first message!')

node nodeapp.js

//ファイルを作成し、文字を追加するfs.appendFileSync('notes.txt','Hello, this is the first message!')

node nodeapp.js

# ApacheBenchを利用するためhttpdをインストール
yum install httpd -y
# 今回PM2は使わないことにしたのでstopしておく
pm2 stop test-app
node --prof app.js
# ユーザー作成
curl -X GET "http://localhost:3000/newUser?username=matt&password=password"
# ベンチマークテスト
ab -k -c 20 -n 250 "http://localhost:3000/auth?username=matt&password=password"

# 人が読みやすいファイルに変換
node --prof-process isolate-0x3d49da0-16098-v8.log > processed.txt
cat processed.txt

...

 [Bottom up (heavy) profile]:
  Note: percentage shows a share of a particular caller in the total
  amount of its parent calls.
  Callers occupying less than 1.0% are not shown.

   ticks parent  name
  56011   75.3%  __GI_epoll_pwait

  18023   24.2%  node::crypto::PBKDF2(v8::FunctionCallbackInfo<v8::Value> const&)
  18023  100.0%    v8::internal::Builtin_HandleApiCall(int, unsigned long*, v8::internal::Isolate*)
  18023  100.0%      LazyCompile: ~pbkdf2Sync internal/crypto/pbkdf2.js:45:20
  17951   99.6%        LazyCompile: ~<anonymous> /var/www/test/app.js:29:18
  17951  100.0%          LazyCompile: ~handle /var/www/test/node_modules/express/lib/router/layer.js:86:49
  17951  100.0%            LazyCompile: ~next /var/www/test/node_modules/express/lib/router/route.js:114:16

...
 [Bottom up (heavy) profile]:
  Note: percentage shows a share of a particular caller in the total
  amount of its parent calls.
  Callers occupying less than 1.0% are not shown.

   ticks parent  name
  94151   98.9%  __GI_epoll_pwait

# 改善前のコード、同時接続200、合計250リクエスト
 ab -k -c 200 -n 250 "http://localhost:3000/auth?username=matt&password=password"
> apr_socket_recv: Connection reset by peer (104)

# 改善後のコード、同時接続200、合計250リクエスト
 ab -k -c 200 -n 250 "http://localhost:3000/auth2?username=matt&password=password"

同期処理
実行→結果→実行→結果...

非同期処理
実行→実行→結果→結果...

並列処理
実行→結果...
実行→結果...

varworker=newWorker("./greeting-worker.js");// データが送られてきたら発火worker.onmessage=function(message){console.log(message)// workerの停止this.terminate();};// Worker作成時かWorker実行中でエラーとなった場合に発火worker.onerror=function(err){console.error("onerror",err.message);};// データ送信worker.postMessage("Hi");

// worker.postMessageが呼ばれたら発火self.onmessage=function(message){// 送られてきたデータconsole.log(message);// workerにデータを送るself.postMessage("I'm good.");};

var{Worker}=require("worker_threads");varworker=newWorker("./greeting-worker.js");// データが送られてきたら発火worker.on("message",function(message){console.log(message);// workerの停止worker.terminate();});// Worker作成時かWorker実行中でエラーとなった場合に発火worker.on("error",function(err){console.error("onerror",err.message);// workerの停止worker.terminate();});// workerが停止したら発火worker.on("exit",function(){console.log("Bye!!");});// データ送信worker.postMessage("Hi, how are you?");

// worker.postMessageが呼ばれたら発火self.onmessage=function(message){// 送られてきたデータconsole.log(message);// workerにデータを送るself.postMessage("I'm good.");};

// スレッドを増やしたい場合varworker1=newWorker("./worker1.js")varworker2=newWorker("./worker2.js")varworker3=newWorker("./worker3.js")...

// 対面フラグdiscoveryFired=false;// アイドル時にトリガーされます（実装する必要があります）prototype.onIdle=function(){if(this.discoveryFired){// 対面後の動作 小刻みに左に動いで相手を探す// 前進(距離)this.move_forwards(10);// 砲塔を左に向ける(角度)this.turn_turret_left(10);// 左に曲がる(角度)this.turn_left(10);// 対面フラグリセットthis.discoveryFired=false;}else{// 対面前の動作 小刻みに右に動いで相手を探す// 前進(距離)this.move_forwards(10);// 砲塔を右に向ける(角度)this.turn_turret_right(10);// 右に曲がる(角度)this.turn_right(10);}};// タンクが壁に衝突したときprototype.onWallCollide=function(){// 反対に移動？たぶん誤字？(距離)this.move_opposide(10);// 左に曲がる(角度)this.turn_left(90);};// 弾丸が当たったときprototype.onHit=function(){// セリフthis.yell("痛いっ");};// 砲塔が敵に直接面している場合（発砲しない理由はないようです！）prototype.onEnemySpot=function(){// セリフthis.yell("当たれ～っ");// 発射this.shoot();// 対面フラグを立てるthis.discoveryFired=true;};

$ mkdir sample
$ cd sample

$ npm init --yes

$ npm install express ejs

$ npm install -g nodemon

const express = require('express');
const app = express();

//CSSや画像ファイルを置くフォルダ（public）を指定するコード
app.use(express.static('public'));

app.get('/', (req, res) => {
  res.render('hello.ejs');
});

app.listen(3000);

<h1>Hello World</h1>

$ nodemon app.js

sudo apt install npm libx11-dev libxtst-dev
npm install joystick robotjs --save-dev

constfs=require('fs');constjoystick=require('joystick');constrobot=require('robotjs');varjoys=newjoystick(jid);//コンソールにジョイスティックイベントの内容を表示//var consolelog = true;varconsolelog=false;//ジョイスティックのID(通常は0)varjid=0;//キーやスティックが押されたときの動作を定義/*
ジョイスティックのボタン押下(button)
"0", "1", "2"....

ジョイスティックのスティック操作(axis)
"a0", "a1", "a2"...


type: "enable"    キー変換の有効・無効の切り替え(無効でもenableだけは有効)

type: "key"       キークリック
    key:      クリックするキー文字もしくはキー文字列

type: "text"      文字列送信
    str:      送信する文字列

type: "mouse"     マウスボタン操作
    mtype:    マウスボタンの操作タイプ("ckick", "toggle", "double")
    button:   クリックするマウスボタン("left", "middle", "right")

type: "move"      マウス移動
    mx:       x軸移動量
    my:       y軸移動量

type: "scroll"    スクロール
    mx:       x軸スクロール量
    my:       y軸スクロール量

type: "updown"    上下カーソルキー
    mv:       0以上:そのまま　0未満:反転 

type: "leftright" 左右カーソルキー
    mv:       0以上:そのまま　0未満:反転 

*/varjoytable={"0":{type:"mouse",mtype:"click",button:"right"},"1":{type:"mouse",mtype:"click",button:"left"},"2":{type:"toggle",key:"left"},"a0":{type:"move",mx:10,my:0},"a1":{type:"move",mx:0,my:10},"a3":{type:"scroll",mx:0,my:5},"a4":{type:"leftright",mv:0},"a5":{type:"updown",mv:0},};//toggle用にマウスボタンの状態を記憶(trueが押されている状態)varmousestate={"left":false,"right":false,"middle":false};//キーマウス動作が有効かどうかvarenable=true;//定義を元にキーやマウスの動作を実行varsendkey=function(dat,mul){if(dat==null||dat.type==null)return;mul=mul<0?-1:1;if(dat.type==="enable"){//キー変換有効無効の切り替えenable=enable?false:true;}elseif(enable&&dat.type==="key"){//キー送信if(dat.key==null)return;robot.keyTap(dat.key);}elseif(enable&&dat.type==="text"){//文字列送信if(dat.str==null)return;robot.typeString(dat.str);}elseif(enable&&dat.type==="mouse"){if(dat.mtype==="click"){//マウスボタンクリックif(dat.button==null)return;robot.mouseClick(dat.button);}elseif(dat.mtype==="double"){//マウスボタンダブルクリックif(dat.button==null)return;robot.mouseClick(dat.button,true);}elseif(dat.mtype==="toggle"){//マウスボタン押下状態切り替えif(dat.button==null||mousestate[dat.button]==null)return;robot.mouseToggle(mousestate[dat.button]?"up":"down",dat.button);mousestate[dat.button]=mousestate[dat.button]?false:true;}}elseif(enable&&dat.type==="move"){//マウスポインタ移動if(dat.mx==null||dat.my==null)return;varpos=robot.getMousePos();robot.moveMouseSmooth(pos.x+(dat.mx*mul),pos.y+(dat.my*mul));}elseif(enable&&dat.type==="scroll"){//スクロールif(dat.mx==null||dat.my==null)return;robot.scrollMouse(dat.mx*mul,dat.my*mul);}elseif(enable&&dat.type==="updown"){//上下カーソルキー送信if(dat.mv==null)return;dat.mv=dat.mv<0?-1:1;robot.keyTap(dat.mv*mul<0?"up":"down");}elseif(enable&&dat.type==="leftright"){//左右カーソルキー送信if(dat.mv==null)return;dat.mv=dat.mv<0?-1:1;robot.keyTap(dat.mv*mul<0?"left":"right");}};//ジョイスティック接続待ち用のsleepvarsleep=function(waitSec){returnnewPromise(function(resolve){setTimeout(function(){resolve()},waitSec);});};//joystickイベントの定義varinit=function(joy){//ボタンクリックイベントjoy.on('button',button=>{if(consolelog)console.log({button});if(button.value!=0){sendkey(joytable[button.number],0);}});//axis移動イベントjoy.on('axis',axis=>{if(consolelog)console.log({axis});if(axis.value!=0){sendkey(joytable["a"+axis.number],axis.value);}});//エラーイベントjoy.on('error',async(err)=>{if(consolelog)console.log({err});//エラーが発生したら/dev/input/js?の存在を1秒ごとに確認して存在すれば再度joystickオブジェクトを作成while(1){if(fs.existsSync('/dev/input/js'+jid))break;awaitsleep(1000);}joys=newjoystick(jid);init(joys)});};//開始init(joys);