.
├── README.md
├── backend
│   ├── Dockerfile-dev
│   ├── app.js
│   ├── config.env
│   ├── controllers
│   ├── middleware
│   ├── models
│   ├── node_modules
│   ├── package-lock.json
│   ├── package.json
│   ├── public
│   ├── routes
│   ├── uploads
│   └── utils
├── frontend
│   ├── Dockerfile-dev
│   ├── build
│   ├── node_modules
│   ├── package-lock.json
│   ├── package.json
│   ├── public
│   └── src
├── dev-docker-compose.yml
├── node_modules
├── package-lock.json
└── package.json

nanka_app_nandemo_yoi_example/
├── node-backend/
│   └── Dockerfile
├── react-frontend/
│   └── Dockerfile
└── docker-compose.yml

FROM node:10.18.0-alpine3.9EXPOSE 3000RUN apk add --update curl
WORKDIR /usr/src/appCOPY package.json package-lock.json* ./RUN npm cache clean --force&& npm install&& npm install-g nodemon
COPY . .CMD ["npm", "run", "dev"]

FROM node:10.18.0-alpine3.9EXPOSE 3000RUN apk add --update curl
WORKDIR /usr/src/appCOPY package.json package-lock.json* ./COPY . .CMD [ "npm", "start" ]

version: "2.2"

services:
  mongodb:
    image: "mongo"
    ports:
      - "27017:27017"
  backend:
    build:
      context: ./backend/
      dockerfile: Dockerfile-dev
    ports:
      - "6200:6200"
    volumes:
      - ./backend:/usr/src/app
    depends_on:
      - mongodb
  frontend:
    build:
      context: ./frontend/
      dockerfile: Dockerfile-dev
    ports:
      - "3000:3000"
    volumes:
      - ./frontend:/usr/src/app
    depends_on:
      - backend

[[redirects]]
    from = "/v1/digit/:width/:digit/:number/"
    to = "/.netlify/functions/digit/?width=:width&digit=:digit&number=:number"
    status = 200

exports.handler=async(event)=>{console.log(event.queryStringParameters);// {}}

import{Path}from'path-parser';functionparseQueryArgs(rewriteUrl,urlpath,format){constparse=Path.createPath(rewriteUrl).test(urlpath);letresult={};for(constkeyinformat){if(parse&&parse[key]){result[key]=parse[key];}else{// default valueresult[key]=format[key]}}returnresult;}exports.handler=async(event)=>{constargs=parseQueryArgs('/v1/digit/:width<\\d+>/:digit<\\d+>/:number<\\d+>/',event.path,{width:160,digit:6,number:12345});// ..snip};

[[redirects]]
    from = "/v1/digit/*"
    to = "/.netlify/functions/digit"
    status = 200

{"dependencies":{"http":"^0.0.1-security","http-auth":"^4.1.2","pug":"^2.0.4"}}

'use strict';consthttp=require('http');constauth=require('http-auth');constpug=require('pug');constbasic=auth.basic({realm:'Enter username and password',file:'./password'});constserver=http.createServer(basic.check((req,res)=>{switch(req.url){default:break;}}));constport=8000;server.listen(port,()=>{console.info('Listening on '+port);});

guest1:2222
guest2:3333

'use strict';consthttp=require('http');constauth=require('http-auth');constpug=require('pug');constbasic=auth.basic({realm:'Enter username and password',file:'./password'});//勤怠履歴varhistory=[];constserver=http.createServer(basic.check((req,res)=>{switch(req.url){case'/top':if(req.method==='GET'){res.writeHead(200,{'Content-Type':'text/html; charset=utf-8'});res.end(pug.renderFile('./views/index.pug',{history:history,user:req.user}));}break;default:break;}}));constport=8000;server.listen(port,()=>{console.info('Listening on '+port);});

doctype html
html(lang="ja")
  head
    meta(charset="utf-8")
    title 勤怠表
  body
    h1 勤怠表
    h2 あなたは #{user} 

    case '/top':
        if(req.method === 'GET'){
            res.writeHead(200, {
                'Content-Type': 'text/html; charset=utf-8'
            });
            res.end(pug.renderFile('./views/index2.pug', {
                history: history,
                user: req.user
            }));            
        }
+       else{
+           handleBadRequest(req, res);
+       }
        break;
     default:
         break;
     }
 }));


+function handleBadRequest(req, res) {
+    res.writeHead(400, {
+        'Content-Type': 'text/plain; charset=utf-8'
+    });
+    const message = "未対応のリクエストです。";
+    res.end('status code :' + res.statusCode + " " + message);
+}
+
 const port = 8000;

curl -X POST -u guest1:2222 -d"hoge=huga" localhost:8000/top 

status code :400 未対応のリクエストです。

             handleBadRequest(req, res);
         }
+    case '/old-url' :
+        handleMovedPermanently(req, res);
+        break
     default:
         break;
    }
}));function handleBadRequest(req, res) {
    res.writeHead(400, {
        'Content-Type': 'text/plain; charset=utf-8'
    });
    const message = "未対応のリクエストです。";
    res.end('status code :' + res.statusCode + " " + message);
}+function handleMovedPermanently(req, res) {
+    res.writeHead(301, {
+        'Content-Type': 'text/html; charset=utf-8',
+        'Location' : '/top'
+    });
+   res.end('<!DOCTYPE html><html lang="jp"><body>' +
+            '<h1>新しいURLに移動しました</h1>' +
+            '<a href="/top">新しいほう</h1>' +
+            '</body></html>');
+}
 const port = 8000;
 server.listen(port, () => {
     console.info('Listening on ' + port);

curl -X GET -u guest1:2222 localhost:8000/old-url

<!DOCTYPE html><html lang="jp"><body><h1>新しいURLに移動しました</h1><a href="/top">新しいほう</h1></body></html>%

     case '/old-url' :
         handleMovedPermanently(req, res);
         break;
+    case '/logout' :
+        handleUnauthorized(req, res);
+        break;
     default:
         break;
     }
 }));

function handleMovedPermanently(req, res) {    
    res.writeHead(301, {
        'Content-Type': 'text/html; charset=utf-8',
        'Location' : '/top'
    });
    res.end('<!DOCTYPE html><html lang="jp"><body>' +
            '<h1>新しいURLに移動しました</h1>' +
            '<a href="/top">新しいほう</h1>' +
            '</body></html>');
}+function handleUnauthorized(req, res) {
+    res.writeHead(401, {
+        'Content-Type': 'text/html; charset=utf-8'
+    });
+    res.end('<!DOCTYPE html><html lang="jp"><body>' +
+            '<h1>ログアウトしました</h1>' +
+            '<a href="/top">ログイン</h1>' +
+            '</body></html>');
+}

doctype html
html(lang="ja")
  head
    meta(charset="utf-8")
    title 勤怠表
  body
    h1 勤怠表
    h2 あなたは #{user} 
    a(href="/logout")  ログアウト

     case '/logout' :
         handleUnauthorized(req, res);
         break;
     default:
+        handleNotFound(req, res);
         break;

function handleUnauthorized(req, res) {
    res.writeHead(401, {
        'Content-Type': 'text/html; charset=utf-8'
    });
    res.end('<!DOCTYPE html><html lang="jp"><body>' +
             '<h1>ログアウトしました</h1>' +
            '<a href="/top">ログイン</h1>' +
            '</body></html>');
}+function handleNotFound(req, res){
+    res.writeHead(404, {
+        'Content-Type': 'text/plain; charset=utf-8'
+    });
+    const message = "指定したURLが見つかりません。";
+    res.end('status code :' + res.statusCode + " " +message);
+}

             handleBadRequest(req, res);
         }
         break;
+    case '/top/kintai':
+        let data = [];
+        if(req.method === 'POST'){
+            req.on('data', (chunk) => {
+                data.push(chunk);
+            }).on('end', () => {
+                data = data.toString();
+                const decoded = decodeURIComponent(data);
+                let kintai = decoded ? decoded.split('kintai-button=')[1] : '';
+                kintai = req.user + ':' + kintai
+                history.unshift(kintai);
+                res.writeHead(303, {
+                    'Location': '/top'
+                });
+                res.end();
+            })
+        }
+        else{
+            handleBadRequest(req, res);
+        }
     case '/old-url' :
         handleMovedPermanently(req, res);
         break;

doctype html
html(lang="ja")
  head
    meta(charset="utf-8")
    title 勤怠表
  body
    h1 勤怠表
    h2 あなたは #{user} 
    a(href="/logout")  ログアウト
    form(method="post" action="/top/kintai")
      button(type="submit" name="kintai-button" value="出勤") 出勤
      button(type="submit" name="kintai-button" value="退勤") 退勤

    each element in history
      div.history
        <hr>
        p #{element}
    <hr>

# リポジトリを作成$ mkdir zaiko
$ cd zaiko
$ git init
$ git remote add 
$ npm init # entrypointはapp.jsに指定# Expressをインストール$ npm i --save express

# TypeScriptをインストール$ npm i --save-dev typescript @types/node ts-node

"scripts":{"tsc":"tsc"}

# TypeScript初期化$ npm run tsc ----init$ npm run tsc ---v
Version 3.8.3

importexpressfrom'express'constapp:express.Express=express()app.get("/",(req,res)=>res.send("Hello, world!"))app.listen(3000,()=>console.log("Example app listening on port 3000!"))

$ npm run tsc
$ node app.js
Example app listening on port 3000!

import{nanoid}from'nanoid'nanoid()//=> "yVQk_rn0A60LXcOR-2voE"

import{nanoid}from'nanoid/async'asyncfunctioncreateUser(){user.id=awaitnanoid()}

nanoid(10)//=> "3juqViJh32"nanoid(3)//=> "eEh"

import{customAlphabet}from'nanoid'constrandomColor=customAlphabet('1234567890abcdef',6)font.color=`#${randomColor()}`//=> "#a1ea8e"

// $ cat node_modules/nanoid/package.json | jq '{ name, version }'{"name":"nanoid","version":"3.0.2"}

console.log('Hello from worker')

const{Worker}=require('worker_threads')constworker=newWorker('./worker.js')

$ node main.js
Hello from worker

console.log('Hello from worker')

import{Worker}from'worker_threads'newWorker(__dirname+'/worker.ts')// tsファイルを指定

$ ts-node src/main.ts
The worker script extension must be ".js", ".mjs", or ".cjs". Received ".ts"

import{Worker}from'worker_threads'newWorker(__dirname+'/worker.js')// jsを起動するように直す

console.log('tsWorker.ts started')

console.log('worker.js started')require('ts-node').register()// 重要require(__dirname+'/tsWorker.ts')

$ ts-node src/main.ts
worker.js started
tsWorker.ts started

$ ts-node-dev src/main.ts
Using ts-node version 8.8.1, typescript version 3.8.3
worker.js started

console.log('worker.js started')console.log(process.execArgv)// require('ts-node').register()// require(__dirname + '/tsWorker.ts')

$ ts-node-dev src/main.ts
Using ts-node version 8.8.1, typescript version 3.8.3
worker.js started
[
  '-r',
  '/var/folders/4l/mrmcxh3x40lbcpwxyz29ppcw0000gn/T/ts-node-dev-hook-1629690677650566.js'
]

import{Worker}from'worker_threads'newWorker(__dirname+'/worker.js',{execArgv:[]})

$ ts-node-dev src/main.ts
Using ts-node version 8.8.1, typescript version 3.8.3
worker.js started
tsWorker.ts started

constaxios=require("axios");constFormData=require("form-data");constform=newFormData();form.append("message","hello");constres=awaitaxios.post(API,form,{headers:form.getHeaders()});

constfetch=require("node-fetch");constFormData=require("form-data");constform=newFormData();form.append("message","helllo");constres=awaitfetch(API,{method:"POST",body:form});

// Detect form data input from form-data moduleif(body&&typeofbody.getBoundary==='function'){return`multipart/form-data;boundary=${body.getBoundary()}`;}

FormData.prototype._generateBoundary=function(){// This generates a 50 character boundary similar to those used by Firefox.// They are optimized for boyer-moore parsing.varboundary='--------------------------';for(vari=0;i<24;i++){boundary+=Math.floor(Math.random()*10).toString(16);}this._boundary=boundary;};

Parse Error: <?php

constExtractTextPlugin=require('extract-text-webpack-plugin');module.exports=[{context:path.resolve(__dirname,'dev'),entry:{// ?> で終わらないファイルを含むindex:'./index.php'.header:'./header.php'},output:{path:path.resolve(__dirname,'public'),filename:'[name].php'},module:{rules:[{test:/\.php/,exclude:/node_modules/,use:ExtractTextPlugin.extract({fallback:"raw-loader",use:[{loader:'html-loader',options:{minimize:{continueOnParseError:true}}},{loader:'ejs-html-loader',options:{context:{// タイムスタンプをPHPファイルに渡すとかtimestamp:+newDate()}}}]})}]},plugins:[newExtractTextPlugin('[name].php')]}];

[opc@tokyo-inst01 〜]$sudo yum install nodejs
読み込んだプラグイン:langpacks, ulninfo
    依存性の解決をしています
    -->トランザクションの確認を実行しています。
    --->パッケージ nodejs.x86_64 1:6.17.1-1.el7 を インストール
    -->依存性の処理をしています: npm = 1:3.10.10-1.6.17.1.1.el7 のパッケージ: 1:nodejs-6.17.1-1.el7.x86_64
    -->依存性の処理をしています: libuv >= 1:1.9.1 のパッケージ: 1:nodejs-6.17.1-1.el7.x86_64
    -->依存性の処理をしています: libuv.so.1()(64bit)のパッケージ: 1:nodejs-6.17.1-1.el7.x86_64
    -->トランザクションの確認を実行しています。
    --->パッケージ libuv.x86_64 1:1.34.0-1.el7 を インストール
    --->パッケージ npm.x86_64 1:3.10.10-1.6.17.1.1.el7 を インストール
    -->依存性解決を終了しました。
依存性を解決しました

    ========================================================================================================
    Package         アーキテクチャー
                                    バージョン                           リポジトリー                 容量
    ========================================================================================================
    インストール中:
    nodejs          x86_64          1:6.17.1-1.el7                       ol7_developer_EPEL          4.7 M
    依存性関連でのインストールをします:
    libuv           x86_64          1:1.34.0-1.el7                       ol7_developer_EPEL          143 k
    npm             x86_64          1:3.10.10-1.6.17.1.1.el7             ol7_developer_EPEL          2.5 M

    ・・・

        インストール:
        git.x86_64 0:1.8.3.1-21.el7_7

        依存性関連をインストールしました:
        perl-Error.noarch 1:0.17020-2.el7                    perl-Git.noarch 0:1.8.3.1-21.el7_7
        perl-TermReadKey.x86_64 0:2.30-20.el7

        完了しました!

[opc@tokyo-inst01 spotify]$git clone https://github.com/spotify/web-api-auth-examples
    Cloning into 'web-api-auth-examples'...
    remote: Enumerating objects: 112, done.
    remote: Total 112 (delta 0), reused 0 (delta 0), pack-reused 112
    Receiving objects: 100% (112/112), 27.26 KiB | 0 bytes/s, done.
    Resolving deltas: 100% (41/41), done.

[opc@tokyo-inst01 spotify]$ls    web-api-auth-examples

[opc@tokyo-inst01 spotify]$cd web-api-auth-examples/
[opc@tokyo-inst01 web-api-auth-examples]$ls    LICENSE  README.md  authorization_code  client_credentials  implicit_grant  package.json
[opc@tokyo-inst01 web-api-auth-examples]$npm install        npm WARN deprecated request@2.83.0: request has been deprecated, see https://github.com/request/request/issues/3142
        npm WARN deprecated hawk@6.0.2: This module moved to @hapi/hawk. Please make sure to switch over as this distribution is no longer supported and may contain bugs and critical security issues.
        npm WARN deprecated cryptiles@3.1.4: This version has been deprecated in accordance with the hapi support policy (hapi.im/support). Please upgrade to the latest version to get the best features, bug fixes, and security patches. If you are unable to upgrade at this time, paid support is available for older versions (hapi.im/commercial).
        npm WARN deprecated boom@4.3.1: This version has been deprecated in accordance with the hapi support policy (hapi.im/support). Please upgrade to the latest version to get the best features, bug fixes, and security patches. If you are unable to upgrade at this time, paid support is available for older versions (hapi.im/commercial).
        npm WARN deprecated sntp@2.1.0: This module moved to @hapi/sntp. Please make sure to switch over as this distribution is no longer supported and may contain bugs and critical security issues.
        npm WARN deprecated hoek@4.2.1: This version has been deprecated in accordance with the hapi support policy (hapi.im/support). Please upgrade to the latest version to get the best features, bug fixes, and security patches. If you are unable to upgrade at this time, paid support is available for older versions (hapi.im/commercial).
        npm WARN deprecated boom@5.2.0: This version has been deprecated in accordance with the hapi support policy (hapi.im/support). Please upgrade to the latest version to get the best features, bug fixes, and security patches. If you are unable to upgrade at this time, paid support is available for older versions (hapi.im/commercial).
        web-api-auth-examples@0.0.2 /home/opc/spotify/web-api-auth-examples
        ├─┬ cookie-parser@1.3.2
        │ ├── cookie@0.1.2
        │ └── cookie-signature@1.0.4
        ├─┬ cors@2.8.5
        │ ├── object-assign@4.1.1
        │ └── vary@1.1.2
        ├─┬ express@4.16.4
        │ ├─┬ accepts@1.3.7
        │ │ └── negotiator@0.6.2
        │ ├── array-flatten@1.1.1
        │ ├─┬ body-parser@1.18.3
        │ │ ├── bytes@3.0.0
        │ │ ├─┬ http-errors@1.6.3
        │ │ │ └── inherits@2.0.3
        │ │ ├─┬ iconv-lite@0.4.23
        │ │ │ └── safer-buffer@2.1.2
        │ │ └── raw-body@2.3.3
        │ ├── content-disposition@0.5.2
        │ ├── content-type@1.0.4
        │ ├── cookie@0.3.1
        │ ├── cookie-signature@1.0.6
        │ ├─┬ debug@2.6.9
        │ │ └── ms@2.0.0
        │ ├── depd@1.1.2
        │ ├── encodeurl@1.0.2
        │ ├── escape-html@1.0.3
        │ ├── etag@1.8.1
        │ ├─┬ finalhandler@1.1.1
        │ │ └── unpipe@1.0.0
        │ ├── fresh@0.5.2
        │ ├── merge-descriptors@1.0.1
        │ ├── methods@1.1.2
        │ ├─┬ on-finished@2.3.0
        │ │ └── ee-first@1.1.1
        │ ├── parseurl@1.3.3
        │ ├── path-to-regexp@0.1.7
        │ ├─┬ proxy-addr@2.0.6
        │ │ ├── forwarded@0.1.2
        │ │ └── ipaddr.js@1.9.1
        │ ├── qs@6.5.2
        │ ├── range-parser@1.2.1
        │ ├── safe-buffer@5.1.2
        │ ├─┬ send@0.16.2
        │ │ ├── destroy@1.0.4
        │ │ └── mime@1.4.1
        │ ├── serve-static@1.13.2
        │ ├── setprototypeof@1.1.0
        │ ├── statuses@1.4.0
        │ ├─┬ type-is@1.6.18
        │ │ └── media-typer@0.3.0
        │ └── utils-merge@1.0.1
        ├── querystring@0.2.0
        └─┬ request@2.83.0
        ├── aws-sign2@0.7.0
        ├── aws4@1.9.1
        ├── caseless@0.12.0
        ├─┬ combined-stream@1.0.8
        │ └── delayed-stream@1.0.0
        ├── extend@3.0.2
        ├── forever-agent@0.6.1
        ├─┬ form-data@2.3.3
        │ └── asynckit@0.4.0
        ├─┬ har-validator@5.0.3
        │ ├─┬ ajv@5.5.2
        │ │ ├── co@4.6.0
        │ │ ├── fast-deep-equal@1.1.0
        │ │ ├── fast-json-stable-stringify@2.1.0
        │ │ └── json-schema-traverse@0.3.1
        │ └── har-schema@2.0.0
        ├─┬ hawk@6.0.2
        │ ├── boom@4.3.1
        │ ├─┬ cryptiles@3.1.4
        │ │ └── boom@5.2.0
        │ ├── hoek@4.2.1
        │ └── sntp@2.1.0
        ├─┬ http-signature@1.2.0
        │ ├── assert-plus@1.0.0
        │ ├─┬ jsprim@1.4.1
        │ │ ├── extsprintf@1.3.0
        │ │ ├── json-schema@0.2.3
        │ │ └─┬ verror@1.10.0
        │ │   └── core-util-is@1.0.2
        │ └─┬ sshpk@1.16.1
        │   ├── asn1@0.2.4
        │   ├── bcrypt-pbkdf@1.0.2
        │   ├── dashdash@1.14.1
        │   ├── ecc-jsbn@0.1.2
        │   ├── getpass@0.1.7
        │   ├── jsbn@0.1.1
        │   └── tweetnacl@0.14.5
        ├── is-typedarray@1.0.0
        ├── isstream@0.1.2
        ├── json-stringify-safe@5.0.1
        ├─┬ mime-types@2.1.26
        │ └── mime-db@1.43.0
        ├── oauth-sign@0.8.2
        ├── performance-now@2.1.0
        ├── stringstream@0.0.6
        ├─┬ tough-cookie@2.3.4
        │ └── punycode@1.4.1
        ├── tunnel-agent@0.6.0
        └── uuid@3.4.0

        npm WARN web-api-auth-examples@0.0.2 No repository field.
        npm WARN web-api-auth-examples@0.0.2 No license field.

[opc@tokyo-inst01 web-api-auth-examples]$cd authorization_code
[opc@tokyo-inst01 authorization_code]$pwd    /home/opc/spotify/web-api-auth-examples/authorization_code
[opc@tokyo-inst01 authorization_code]$ls    app.js  app.js.org  public

[opc@tokyo-inst01 authorization_code]$vi index.html
<html><head>    ...
<style type="text/css">    #login {        display: none;    }

    #loggedin {        display: none;    }
    ...
</style><body><div><div id="login"><h1>First, log in to spotify</h1>
<a href="/login">Log in</a>
</div><div id="loggedin"></div></div><script id="loggedin-template" type="text/x-handlebars-template"><h1>Logged in as </h1>
<img id="avatar" width="200" src="" /><dl><dt>Display name</dt><dd></dd>
<dt>Username</dt><dd></dd>
<dt>Email</dt><dd></dd>
<dt>Spotify URI</dt><dd><a href=""></a></dd>
<dt>Link</dt><dd><a href=""></a></dd>
<dt>Profile Image</dt><dd></dd>
</dl><p><a href="/">Log in again</a></p>
</script></body></html>

・app.jsファイル設定箇所
    var client_id = 'CLIENT_ID'; // Your client id
    var client_secret = 'CLIENT_SECRET'; // Your secret
    var redirect_uri = 'REDIRECT_URI'; // Your redirect uri

[opc@tokyo-inst01 authorization_code]$vi app.js
    /**
    * This is an example of a basic node.js script that performs
    * the Authorization Code oAuth2 flow to authenticate against
    * the Spotify Accounts.
    *
    * For more information, read
    * https://developer.spotify.com/web-api/authorization-guide/#authorization_code_flow
    */

    ・・・

    var client_id = 'e15bfd0dccb54db5a1757b';// Your client id    var client_secret = 'e17644952de94c6baebef';// Your secret
    var redirect_uri = 'http://100.100.100.100:8888/callback';// Your redirect uri
・・・

[opc@tokyo-inst01 authorization_code]$node app.js
    Listening on 8888

curl -H "Authorization: Bearer <Accesstoken>" https://api.spotify.com/v1/playlists/37i9dQZF1DX9vYRBO9gjDe/tracks

[opc@tokyo-inst01~]$curl-H"Authorization: Bearer BQDQMF8bDTWt2vBFTRaI0bbIL5RIXlc-wIO5yRWtTzLyBKHsGUEbs1-668aBJ3bIRYpdZnKT..."https://api.spotify.com/v1/playlists/37i9dQZF1DX9vYRBO9gjDe/{"collaborative":false,"description":"Spotify Japanのデイリー急上昇チャート。4月1日付。","external_urls":{"spotify":"https://open.spotify.com/playlist/37i9dQZF1DX9vYRBO9gjDe"},"followers":{"href":null,"total":148523},・・・<省略>・・・}],"limit":100,"next":null,"offset":0,"previous":null,"total":50},"type":"playlist","uri":"spotify:playlist:37i9dQZF1DX9vYRBO9gjDe"

import*asfsfrom'fs'import*aspathfrom'path'constDATA_PATH=path.join(__dirname,'../data/data.txt')constdataWriteStream=fs.createWriteStream(DATA_PATH)constarr=['Hello','World','Hoge']arr.forEach(val=>dataWriteStream.write(val+'\n'))

import*asfsfrom'fs'import*aspathfrom'path'constDATA_PATH=path.join(__dirname,'../data/data.txt')constdataReadStream=fs.createReadStream(DATA_PATH,{encoding:'utf-8'})dataReadStream.on('data',chunk=>console.log(chunk))

import*asfsfrom'fs'import{Writable,Readable}from'stream'import*asstringifyfrom'csv-stringify'exportclassWritableCSVStreamextendsWritable{privatestringifier:stringify.StringifierprivatewriteStream:fs.WriteStreamconstructor(path:string,options:stringify.Options={}){super({objectMode:true})this.writeStream=fs.createWriteStream(path)this.stringifier=stringify(options)this.stringifier.on('data',chunk=>{this.writeStream.write(chunk)}).on('error',err=>{this.destroy(err)})this.writeStream.on('error',err=>this.destroy(err))}_write(chunk:any,encoding:string,next:(error?:Error)=>void){this.stringifier.write(chunk,next)}_final(next:()=>void){this.writeStream.close()this.stringifier.end()next()}_destroy(err?:Error,next?:(err?:Error)=>void){this.writeStream.close()this.stringifier.end()next()}}

import*asparsefrom'csv-parse'exportconstcreateCSVReadStream=(path:string,options:parse.Options={})=>fs.createReadStream(path).pipe(parse(options))

$ nodebrew install-binary v12.13.0
$ nodebrew use v12.13.0

const{performance}=require('perf_hooks');/**
 * @return 本スクリプトを実行してからの経過秒数.
 */constseconds=()=>performance.now()/1000;constsecondsPadded=()=>seconds().toFixed(6).padStart(10,'');// 長さ揃える.//////////////// 処理３つ /////////////////**
 * 処理 1 (非同期, 5 秒後に発火).
 */constfunc1=()=>{console.log(`${secondsPadded()} seconds --> 処理 1 (非同期, 5 秒後に発火)`);};/**
 * 処理 2 (非同期, 0 秒後に発火).
 */constfunc2=()=>{console.log(`${secondsPadded()} seconds --> 処理 2 (非同期, 0 秒後に発火)`);};/**
 * 処理 3 (同期. 10 秒かかる).
 */constfunc3=()=>{while(seconds()<10){/* consuming a single cpu for 10 seconds... */}console.log(`${secondsPadded()} seconds --> 処理 3 (同期, 10 秒かかる)`);};//////////////// 計測開始 ////////////////console.log(`${secondsPadded()} seconds --> index.js START`);// [非同期] 5 秒後に実行.setTimeout(func1,5000);// [非同期] 即時実行.setTimeout(func2);// 同期実行.func3();console.log(`${secondsPadded()} seconds --> index.js END`);//////////////// 計測終了 ////////////////

$ node index.js

  0.000000 seconds --> index.js START
  0.000000 seconds --> 処理 2 (非同期, 0 秒後に発火)
  5.000000 seconds --> 処理 1 (非同期, 5 秒後に発火)
 10.000000 seconds --> 処理 3 (同期, 10 秒かかる)
 10.000000 seconds --> index.js END

$ node index.js 

  0.175104 seconds --> index.js START
 10.000085 seconds --> 処理 3 (同期, 10 秒かかる)
 10.000210 seconds --> index.js END
 10.000955 seconds --> 処理 2 (非同期, 0 秒後に発火)
 10.001161 seconds --> 処理 1 (非同期, 5 秒後に発火)

{"version":2,"name":"mylinebot","builds":[{"src":"server.js","use":"@now/node"}],"routes":[{"src":"/","dest":"server.js"},{"src":"/webhook","dest":"server.js"}]}

now --target production

❗️  The `name` property in now.json is deprecated (https://zeit.ink/5F)

{"version":2,"builds":[{"src":"server.js","use":"@now/node"}],"routes":[{"src":"/","dest":"server.js"},{"src":"/webhook","dest":"server.js"}]}

WARN! We recommend using the much shorter `--prod` option instead of `--target production` (deprecated) 

now --prod

Now CLI 17.1.1
? Set up and deploy “~/Documents/ds/playground/mylinebot”? [Y/n] ←ここでエンターもしくはY

? Which scope do you want to deploy to? 
● n0bisuke ←ここでエンター

? Found project “n0bisuke/mylinebot”. Link to it? [Y/n] ←ここでエンターもしくはY

・・省略・・functionhandleEvent(event){if(event.type!=='message'||event.message.type!=='text'){returnPromise.resolve(null);}letmes=''if(event.message.text==='天気教えて！'){mes='ちょっとまってね';//待ってねってメッセージだけ先に処理getNodeVer(event.source.userId);//スクレイピング処理が終わったらプッシュメッセージ}else{mes=event.message.text;}returnclient.replyMessage(event.replyToken,{type:'text',text:mes});}constgetNodeVer=async(userId)=>{constres=awaitaxios.get('http://weather.livedoor.com/forecast/webservice/json/v1?city=400040');constitem=res.data;awaitclient.pushMessage(userId,{type:'text',text:item.description.text,});}・・省略・・

・・省略・・asyncfunctionhandleEvent(event){if(event.type!=='message'||event.message.type!=='text'){returnPromise.resolve(null);}//"天気教えて"以外の場合は反応しないif(event.message.text!=='天気教えて'){returnclient.replyMessage(event.replyToken,{type:'text',text:'"天気教えて"と言ってね'});}letmes='';mes='ちょっと待ってね';//"ちょっと待ってね"ってメッセージだけ先に処理awaitclient.replyMessage(event.replyToken,{type:'text',text:mes});//axiosを使って天気APIにアクセスconstCITY_ID=`400040`;//ライドアのAPIから取得したいシティのIDをconstURL=`http://weather.livedoor.com/forecast/webservice/json/v1?city=${CITY_ID}`;constres=awaitaxios.get(URL);constitem=res.data;returnclient.pushMessage(event.source.userId,{type:'text',text:item.description.text,});}・・省略・・

・・省略・・asyncfunctionhandleEvent(event){if(event.type!=='message'||event.message.type!=='text'){returnPromise.resolve(null);}//"天気教えて"以外の場合は反応しないif(event.message.text!=='天気教えて'){returnclient.replyMessage(event.replyToken,{type:'text',text:'"天気教えて"と言ってね'});}letmes='';mes='ちょっと待ってね';//"ちょっと待ってね"ってメッセージだけ先に処理awaitclient.replyMessage(event.replyToken,{type:'text',text:mes});constCITY_ID=`400040`;//ライドアのAPIから取得したいシティのIDをreturngetWeather(event.source.userId,CITY_ID);}constgetWeather=async(userId,CITY_ID)=>{//axiosを使って天気APIにアクセスconstURL=`http://weather.livedoor.com/forecast/webservice/json/v1?city=${CITY_ID}`;constres=awaitaxios.get(URL);constitem=res.data;returnclient.pushMessage(userId,{type:'text',text:item.description.text,});}・・省略・・

sudo apt install docker.io
sudo systemctl enable --now docker
sudo usermod -aG docker $USER

$ mkdir docker_web_app

{"name":"docker_web_app","version":"1.0.0","description":"Node.js on Docker","author":"First Last <first.last@example.com>","main":"server.js","scripts":{"start":"node server.js"},"dependencies":{"express":"^4.16.1"}}

'use strict';constexpress=require('express');// ConstantsconstPORT=8080;constHOST='0.0.0.0';// Appconstapp=express();app.get('/',(req,res)=>{res.send('Hello World');});app.listen(PORT,HOST);console.log(`Running on http://${HOST}:${PORT}`);

FROM node:12# アプリケーションディレクトリを作成するWORKDIR /usr/src/app# アプリケーションの依存関係をインストールする# ワイルドカードを使用して、package.json と package-lock.json の両方が確実にコピーされるようにします。# 可能であれば (npm@5+)COPY package*.json ./RUN npm install# 本番用にコードを作成している場合# RUN npm install --only=production# アプリケーションのソースをバンドルするCOPY . .EXPOSE 8080CMD [ "node", "server.js" ]

ubuntu@ubuntu:~/node-web-app$ docker build -t node-web-app-test .
Sending build context to Docker daemon  4.608kB
Step 1/7 : FROM node:12
12: Pulling from library/node
84582781a9f0: Already exists
2aaedfc98967: Already exists
cfa6bb03021f: Already exists
6a4110ff81d0: Already exists
e867f7ebdcf1: Already exists
2f16af5fb418: Already exists
cfc1102c13fa: Pull complete
9e6855539b2a: Pull complete
b5c194de032e: Pull complete
Digest: sha256:46f4c17e1edbde36d60a9f6362db7912cfe301bac89afef7cc92421ab3e7ca18
Status: Downloaded newer image for node:12
 ---> 694bb044bce1
Step 2/7 : WORKDIR /usr/src/app
 ---> Running in 536f08e477ba
Removing intermediate container 536f08e477ba
 ---> 12ccd9c86b57
Step 3/7 : COPY package*.json ./
 ---> ef6d92e05eba
Step 4/7 : RUN npm install
 ---> Running in ce1481d407dc
npm notice created a lockfile as package-lock.json. You should commit this file.
npm WARN docker_web_app@1.0.0 No repository field.
npm WARN docker_web_app@1.0.0 No license field.

added 50 packages from 37 contributors and audited 126 packages in 4.84s
found 0 vulnerabilities

Removing intermediate container ce1481d407dc
 ---> c83c3ed164a4
Step 5/7 : COPY . .
 ---> 1d1529685c13
Step 6/7 : EXPOSE 8080
 ---> Running in 4641a7aeda76
Removing intermediate container 4641a7aeda76
 ---> 667730c72077
Step 7/7 : CMD [ "node", "server.js" ]
 ---> Running in 28e2e97e3e4b
Removing intermediate container 28e2e97e3e4b
 ---> 8a4d60b76312
Successfully built 8a4d60b76312
Successfully tagged node-web-app-test:latest

ubuntu@ubuntu:~/node-web-app$ docker run -p 49160:8080 -d node-web-app-test
1ca0cb8ecb347fdc66ce1c1d6a6e9580f5733e58fa66bb3b34da68411aa0184a

ubuntu@ubuntu:~/node-web-app$ docker ps
CONTAINER ID        IMAGE                   COMMAND                  CREATED             STATUS              PORTS                     NAMES
1ca0cb8ecb34        node-web-app-test       "docker-entrypoint.s…"   7 minutes ago       Up 7 minutes        0.0.0.0:49160->8080/tcp   lucid_dubinsky
ubuntu@ubuntu:~/node-web-app$ docker stop 1ca0cb8ecb34
1ca0cb8ecb34
ubuntu@ubuntu:~/node-web-app$ docker rm 1ca0cb8ecb34
1ca0cb8ecb34

ubuntu@ubuntu:~/node-web-app$ docker images | grep node-web-app
node-web-app-test           latest              8a4d60b76312        36 minutes ago      868MB

ubuntu@ubuntu:~/node-web-app$ docker tag node-web-app-test:latest node-web-app-test:local

ubuntu@ubuntu:~/node-web-app$ docker images | grep node-web-app
node-web-app-test           latest              8a4d60b76312        37 minutes ago      868MB
node-web-app-test           local               8a4d60b76312        37 minutes ago      868MB

ubuntu@ubuntu:~/node-web-app$ docker save node-web-app-test:local > image.tar

ubuntu@ubuntu:~/node-web-app$ microk8s ctr image import image.tar
unpacking docker.io/library/node-web-app-test:local (sha256:2e85de5a19c3cd98f07d8ae3f039ff6f47076e717a41a35b4da23ce0309d9243)...done

ubuntu@ubuntu:~/node-web-app$ microk8s ctr images ls | grep node-web-app
docker.io/library/node-web-app-test:local
application/vnd.oci.image.manifest.v1+json
sha256:2e85de5a19c3cd98f07d8ae3f039ff6f47076e717a41a35b4da23ce0309d9243 856.4 MiB linux/arm64
io.cri-containerd.image=managed

apiVersion:apps/v1kind:Deploymentmetadata:name:node-web-app-testspec:replicas:1selector:matchLabels:app:node-web-app-testtemplate:metadata:labels:app:node-web-app-testspec:containers:-name:node-web-app-testimage:node-web-app-test:localimagePullPolicy:Never# ローカルのイメージ使用の場合のみrestartPolicy:Always

apiVersion:v1kind:Servicemetadata:name:node-web-app-testspec:selector:app:node-web-app-testports:-protocol:TCPport:8080nodePort:31200type:NodePort

ubuntu@ubuntu:~/node-web-app$ kubectl apply -f deployment.yaml
deployment.apps/node-web-app-test created

ubuntu@ubuntu:~/node-web-app$ kubectl get po
NAME                                 READY   STATUS    RESTARTS   AGE
node-web-app-test-69f4c59b6f-bwsrv   1/1     Running   0          56m

ubuntu@ubuntu:~/node-web-app$ kubectl apply -f service.yaml
service/node-web-app-test configured

ubuntu@ubuntu:~/node-web-app$ kubectl get svc
NAME                TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE
kubernetes          ClusterIP   10.152.183.1     <none>        443/TCP          35d
node-web-app-test   NodePort    10.152.183.157   <none>        8080:31200/TCP   74m

returnclient.replyMessage(event.replyToken,{type:'image',originalContentUrl:'オリジナルサイズの画像URL',previewImageUrl:'LINEアプリのトーク画面にプレビューされるサイズの画像URL'});

returnclient.replyMessage(event.replyToken,{type:'image',originalContentUrl:'https://cdn.shibe.online/shibes/907fed97467e36f3075211872d98f407398126c4.jpg',previewImageUrl:'https://cdn.shibe.online/shibes/907fed97467e36f3075211872d98f407398126c4.jpg'});

'use strict';constaxios=require('axios');// 追加constexpress=require('express');constline=require('@line/bot-sdk');constPORT=process.env.PORT||3000;constconfig={channelSecret:'LINE botのチャンネルシークレット',channelAccessToken:'LINE botのアクセストークン'};constapp=express();app.get('/',(req,res)=>res.send('Hello LINE BOT!(GET)'));//ブラウザ確認用(無くても問題ない)app.post('/webhook',line.middleware(config),(req,res)=>{console.log(req.body.events);//ここのif文はdeveloper consoleの"接続確認"用なので後で削除して問題ないです。if(req.body.events[0].replyToken==='00000000000000000000000000000000'&&req.body.events[1].replyToken==='ffffffffffffffffffffffffffffffff'){res.send('Hello LINE BOT!(POST)');console.log('疎通確認用');return;}Promise.all(req.body.events.map(handleEvent)).then((result)=>res.json(result));});constclient=newline.Client(config);functionhandleEvent(event){if(event.type!=='message'||event.message.type!=='text'){returnPromise.resolve(null);}returnclient.replyMessage(event.replyToken,{type:'image',originalContentUrl:'https://cdn.shibe.online/shibes/907fed97467e36f3075211872d98f407398126c4.jpg',previewImageUrl:'https://cdn.shibe.online/shibes/907fed97467e36f3075211872d98f407398126c4.jpg'});}app.listen(PORT);console.log(`Server running at ${PORT}`);

$enable-pnpm

varknex=require('knex')({dialect:'mysql',connection:{host:'localhost',user:'root',password:'（パスワード）',database:'(データベース名)',charset:'utf-8'}});

['bbbbb','3'].map(({length})=>length)

['bbbbb','3'].map(function(_a){varlength=_a.length;returnlength;});

varf=([a,b]=[1,2],{x:c}={x:a+b})=>a+b+c;

varf=function(_a,_b){var_c=_a===void0?[1,2]:_a,a=_c[0],b=_c[1];varc=(_b===void0?{x:a+b}:_b).x;returna+b+c;};

if(process.env.NOW_REGION){module.export=app;}else{app.listen(PORT);console.log(`Server running at ${PORT}`);}

(process.env.NOW_REGION)?module.exports=app:app.listen(PORT);console.log(`Server running at ${PORT}`);