$ ioreg -rn AppleSmartBattery | grep '"AdapterDetails"'
      "AdapterDetails" = {"Watts"=30,"Current"=1500,"PMUConfiguration"=0,"Voltage"=20000}

const{execSync}=require('child_process');conststdout=execSync('ioreg -rn AppleSmartBattery | grep \\\"AdapterDetails\\\"');

const{app,Tray,Menu,MenuItem}=require('electron');constICON_PATH='icon.png';app.on('ready',()=>{constappIcon=newTray(ICON_PATH);constmenu=newMenu();menu.append(newMenuItem({label:'item',click:()=>{alert('click item');},});menu.append(newMenuItem({type:'separator'}));menu.append(newMenuItem({role:'quit'}));appIcon.setContextMenu(menu);});

if(!isCharging()){appIcon.setImage(ICON_MISSED_PATH);return;}appIcon.setImage(ICON_CHARGING_PATH);

const{app}=require('electron');app.on('ready',()=>{app.dock.hide();});

const{app,Notification}=require('electron');app.on('ready',()=>{constnotification=newNotification({title:'⚡Charging',body:'Power: 30W\nVoltage: 20V / Current: 1.5A',silent:true,});notification.show();});

$ yarn add --dev electron-builder

{"name":"charger-information-for-mac","main":"main.js","scripts":{"build":"electron-builder"},"devDependencies":{"electron":"^7.1.2","electron-builder":"^21.2.0"},"build":{"appId":"com.ozonicsky.charger-information-for-mac","productName":"Charger Information","icon":"icons.iconset","mac":{"target":"dmg"}}}

$ yarn build

>+++++++++[<++++++++>-]<.>+++++++[<++++>-]<+.+++++++..+++.[-]>++++++++[<++
++>-]<.>+++++++++++[<+++++>-]<.>++++++++[<+++>-]<.+++.------.--------.[-]>
++++++++[<++++>-]<+.[-]++++++++++.

Hello World!

++++++++++++++++++++++++++++++++++++++++
+++++++++++++++++++++++++.+.+.>++++++++++.

ABC

$ yarn add jsbrainfuck

const{readFileSync}=require("fs");const{interpret}=require("jsbrainfuck");// 引数から対象ファイル名を取得して各ファイルを実行するprocess.argv.slice(2).forEach((name)=>{constsource=readFileSync(name,"utf-8");console.log(`Executing ${name} =>`);const{print}=interpret(source);// Brainfuckコードを実行print();// 実行結果を表示});

$ node run.js src/hello.bf src/abc.bf
Executing src/hello.bf =>
Hello World!
Executing src/abc.bf =>
ABC

const{readFileSync,writeFileSync}=require("fs");const{compile}=require("jsbrainfuck");constname=process.argv[2];// 入力ファイル名を引数から取得constsource=readFileSync(name,"utf-8");const{code}=compile(source);// BrainfuckからJSコード生成constout=process.argv[3];// 出力ファイル名を引数から取得writeFileSync(out,code);

$ node compile.js src/hello.bf hello.js
$ node hello.js
Hello World!

$ yarn add nodemon

{"nodemonConfig":{"watch":["./src"],"ext":"bf","exec":"node ./run.js ./src/*.bf"}}

$ yarn run nodemon
[nodemon] 2.0.1
[nodemon] to restart at any time, enter `rs`
[nodemon] watching dir(s): src/**/*
[nodemon] watching extensions: bf
[nodemon] starting `node ./run.js ./src/*.bf`
Executing ./src/abc.bf =>
ABC
Executing ./src/hello.bf =>
Hello World!
[nodemon] clean exit - waiting for changes before restart
[nodemon] restarting due to changes...
[nodemon] starting `node ./run.js ./src/*.bf`
Executing ./src/abc.bf =>
DEF
Executing ./src/hello.bf =>
Hello World!
[nodemon] clean exit - waiting for changes before restart

{"scripts":{"start":"nodemon","build":"node compile.js"}}

npm install --save multer multer-s3 ibm-cos-sdk

constmulter=require('multer');constconfig=require('config');constaws=require('ibm-cos-sdk');constmulterS3=require('multer-s3');constep=newaws.Endpoint(config.objectStorage.endpoints);consts3=newaws.S3({endpoint:ep,region:'us-south',apiKeyId:config.objectStorage.apikey});constbucket=config.objectStorage.iam_apikey_name;constupload=multer({storage:multerS3({s3:s3,bucket:bucket,acl:'public-read',key:function(req,file,cb){cb(null,`${newDate().getTime()}_${file.originalname}`);}})});exports.upload=upload;

"objectStorage":{"apikey":"自分のAPI KEY","endpoints":"https://s3.{自分のregionのprefix}.cloud-object-storage.appdomain.cloud","iam_apikey_name":"自分のバケットの名前"}

constuploadImage=async(req,res,next)=>{// ファイルのURLはfiles[index].locationに保存されるconstimagePathList=req.files.map((file)=>file.location);constlist=JSON.parse(req.body.list);constresult=awaitdb.update();// あとはDBの更新なり行ってください。res.json(result);};exports.uploadImage=uploadImage;

constexpress=require('express');const{upload}=require('./upload.controller');const{uploadImage}=require('./uploader.controller');/* eslint new-cap: 0 */constrouter=express.Router();router.route('/upload')// upload.array('photos', 10)で10枚まで同時アップロード可能.post(upload.array('photos',10),updateCarStatusWithImage)

it('should upload multi image file',async()=>{constresult=awaitrequest(app).post(`/upload`).attach('photos',path.join(__dirname,'images','image1.jpg')).attach('photos',path.join(__dirname,'images','image2.jpg')).attach('photos',path.join(__dirname,'images','image3.jpg')).attach('photos',path.join(__dirname,'images','image4.jpg'))// req.body.listとして送信したい情報がある場合.field('list',JSON.stringify(['one','two','three'])).expect(200);should.exist(result.body);});

import{Injectable}from'@nestjs/common';import{createConnection,Connection}from'typeorm';@Injectable()exportclassItemsService{connection:Connection;constructor(){createConnection({type:'mysql',host:'0.0.0.0',port:3306,username:'root',database:'test',}).then(connection=>{this.connection=connection;}).catch(e=>{throwe;});}// connection が確立していないタイミングがあるため待ち受けるprivateasyncwaitToConnect(){if(this.connection){return;}awaitnewPromise(resolve=>setTimeout(resolve,1000));awaitthis.waitToConnect();}asynccreateItem(title:string,body:string,deletePassword:string){if(!this.connection){awaitthis.waitToConnect();}awaitthis.connection.query(`INSERT INTO items (title, body, deletePassword) VALUE (?, ?, ?)`,[title,body,deletePassword],);}}

import{Injectable}from'@nestjs/common';import{createConnection,Connection}from'typeorm';@Injectable()exportclassDatabaseService{connection:Connection;constructor(){createConnection({type:'mysql',host:'0.0.0.0',port:3306,username:'root',database:'test',}).then(connection=>{this.connection=connection;}).catch(e=>{throwe;});}}

{provide:'ASYNC_CONNECTION',useFactory:async()=>{constconnection=awaitcreateConnection(options);returnconnection;},}

import{Injectable}from'@nestjs/common';import{createConnection,Connection}from'typeorm';@Injectable()exportclassDatabaseService{connection:Connection;asyncinitialize(){this.connection=awaitcreateConnection({type:'mysql',host:'0.0.0.0',port:3306,username:'root',database:'test',})}}

import{Module}from'@nestjs/common';import{DatabaseService}from'./database.service';@Module({providers:[{provide:'DatabaseService',useFactory:async()=>{constdatabaseService=newDatabaseService();awaitdatabaseService.initialize();},},],})exportclassDatabaseModule{}

import{Injectable}from'@nestjs/common';import{Connection}from'typeorm';@Injectable()exportclassDatabaseService{constructor(publicreadonlyconnection:Connection){}}

import{Module}from'@nestjs/common';import{DatabaseService}from'./database.service';import{createConnection}from'typeorm';@Module({providers:[{provide:'DatabaseService',useFactory:async()=>{constconnection=awaitcreateConnection({type:'mysql',host:'0.0.0.0',port:3306,username:'root',database:'test',});returnnewDatabaseService(connection);},},],})exportclassDatabaseModule{}

version:'3'services:db:build:context:.dockerfile:Dockerfileenvironment:MYSQL_ALLOW_EMPTY_PASSWORD:'yes'MYSQL_DATABASE:testTZ:'Asia/Tokyo'ports:-3306:3306

FROM mysql:5.7COPY create-table.sql /docker-entrypoint-initdb.d/create-table.sql

CREATETABLEhelloworld(messageVARCHAR(32));INSERTINTOhelloworld(message)VALUES("Hello World");

import{Controller,Get}from'@nestjs/common';import{DatabaseService}from'./database.service';@Controller('database')exportclassDatabaseController{constructor(privatereadonlydatabaseService:DatabaseService){}@Get()asyncselectAll():Promise<string>{constres=awaitthis.databaseService.connection.query(`SELECT message FROM helloworld`,);returnres[0].message;}}

$ curl localhost:3000/database
Hello World% 

.
├── src
│   ├── data
│   │   └── index.ts
│   ├── fields
│   │   ├── index.ts
│   │   └── member
│   │       ├── index.ts
│   │       ├── query.ts
│   │       ├── resolvers.ts
│   │       └── types.ts
│   └── index.ts
├── package.json
└── tsconfig.json

yarn add @types/express cors express express-graphql graphql typescript

yarn add -D ts-node tsconfig-paths

{"compilerOptions":{"sourceMap":false,"noImplicitAny":true,"module":"commonjs","target":"es5","lib":["es2018","dom"],"moduleResolution":"node","removeComments":true,"strict":true,"noUnusedLocals":true,"noUnusedParameters":false,"noImplicitReturns":true,"noFallthroughCasesInSwitch":true,"strictFunctionTypes":false,"baseUrl":"./","paths":{"@/*":["src/*"],}},"include":["./src/**/*.ts"]}

exportconstmemberList=[{id:1,name:'Rachel',age:29},{id:2,name:'Ross',age:29},{id:3,name:'Joey',age:29}];

import{GraphQLObjectType,GraphQLNonNull,GraphQLString,GraphQLInt}from'graphql';exportconstmemberType=newGraphQLObjectType({name:'member',description:'member',fields:{id:{type:newGraphQLNonNull(GraphQLInt),description:'The Member ID.'},name:{type:newGraphQLNonNull(GraphQLString),description:'The Member name.'},age:{type:newGraphQLNonNull(GraphQLInt),description:'The Member age.'}}});

import{memberList}from'@/data';exportconstgetMemberList=()=>Promise.resolve(memberList);

import{GraphQLList}from'graphql';import{getMemberList}from'@/fields/member/resolvers';import{memberType}from'@/fields/member/types';exportconstmemberQuery={memberList:{type:newGraphQLList(memberType),description:'Get list of members data.',resolve:getMemberList}};

import{memberQueryasquery}from'@/fields/member/query';exportconstmemberField={query};

import{GraphQLObjectType}from'graphql';import{memberField}from'@/fields/member/';exportconstqueryType=newGraphQLObjectType({name:'Query',description:'The root query type.',fields:{...memberField.query}});

import*asexpressfrom'express';import*asgraphqlHTTPfrom'express-graphql';import{GraphQLSchema}from'graphql';import{queryType}from'@/fields/';constPORT=4000;constapp=express();constschema=newGraphQLSchema({query:queryType});app.use('/graphql',express.json(),graphqlHTTP({schema,graphiql:true}));app.listen(PORT,()=>console.log('Listening on :4000'));

yarn ts-node -r tsconfig-paths/register src/index.ts

querygetMemberList{memberList{idnameage}}

import"foo";// 今まではOKだったけどNGになるimport"foo/index";// 今まではOKだったけどNGになるimport"foo/index.mjs";// こうしないとダメ（.mjsという拡張子については後述）

import"foo.js";// 今後は".js"はES Modules形式とみなされる（仕様変更）import"foo.mjs";// ".mjs"も同様にES Modules形式とみなされる（従来どおり）require("foo.cjs");// CommonJS形式の拡張子は".cjs"になる（新仕様）

{..."type":"module",//.jsをESModulesとして扱いたい場合"type":"commonjs",//.jsをCommonJSとして扱いたい場合（デフォルト）...}

$ node --experimental-modules foo.mjs # 拡張子は必須$ node --experimental-modules--es-module-specifier-resolution=node foo.mjs # 拡張子は省略可（従来どおり）

{"type":"module"}

import"./path/to/bar.js"// 拡張子を省略しない

for(constxof[1,2,3]){console.log(x);}

["@babel/preset-env",{"targets":{"node":"8.5.0"},"useBuiltIns":"usage","corejs":3,"modules":false}]

import"core-js/modules/es.array.iterator";for(constxof[1,2,3]){console.log(x);}

$ node --experimental-modules example.mjs
(node:5693) ExperimentalWarning: The ESM module loader is experimental.
internal/modules/esm/default_resolve.js:79
  let url = moduleWrapResolve(specifier, parentURL);
            ^

Error: Cannot find module /path/to/example/node_modules/core-js/modules/es.array.iterator imported from /path/to/example/dist/example.mjs
    at Loader.resolve [as _resolve] (internal/modules/esm/default_resolve.js:79:13)
    at Loader.resolve (internal/modules/esm/loader.js:73:33)
    at Loader.getModuleJob (internal/modules/esm/loader.js:152:40)
    at ModuleWrap. (internal/modules/esm/module_job.js:43:40)
    at link(internal/modules/esm/module_job.js:42:36){
  code: 'ERR_MODULE_NOT_FOUND'}

import"bar.ts";import"bar";

require('..\\sub\\sub');// ①OKrequire('../sub\\sub');// ②OKrequire('.\\sub');// ③エラーrequire('./sub');// ④OKimport'..\\sub\\sub.mjs';// ⑤エラーimport'../sub\\sub.mjs';// ⑥OKimport'.\\sub.mjs';// ⑦エラーimport'./sub.mjs';// ⑧OK

require('./..\\sub\\sub');// ①OKrequire('./../sub\\sub');// ②OKrequire('./.\\sub');// ③OKrequire('././sub');// ④OKimport'./..\\sub\\sub.mjs';// ⑤OKimport'./../sub\\sub.mjs';// ⑥OKimport'./.\\sub.mjs';// ⑦OKimport'././sub.mjs';// ⑧OK

$ sudo n --stable
12.13.1

$ node -v
v8.9.4

$ which node
/Users/gremito/.nodebrew/current/bin/node

$ less ~/.bash_profile
...
export PATH="${HOME}/.nodebrew/current/bin:$PATH"
...

$ rm -fr .nodebrew

$ vi ~/.bash_profile
# .nodebrewの設定を削除
$ source ~/.bash_profile

$ node -v
v12.13.1
$ which node
/usr/local/bin/node

constfs=require('fs')fs.stat('x',(er,stat)=>{if(er)console.error(er)elseconsole.log(stat)})

constfs=require('fs')conststats=[]fs.stat('x',(er,stat)=>{if(er)console.error(er)else{stats.push(stat)fs.stat('y',(er,stat)=>{if(er)console.error(er)else{stats.push(stat)console.log(stats)}})}})

constfs=require('fs')conststats=[null,null]fs.stat('x',(er,stat)=>{if(er)console.error(er)else{stats[0]=statif(stats[1])console.log(stats)}})fs.stat('y',(er,stat)=>{if(er)console.error(er)else{stats[1]=statif(stats[0])console.log(stats)}})

constfs=require('fs')const{promisify}=require('util')promisify(fs.stat)('x').then(_=>console.log(_)).catch(_=>console.error(_))

constfs=require('fs')newPromise((rs,rj)=>fs.stat('x',(er,stat)=>er?rj(er):rs(stat))).then(_=>console.log(_)).catch(_=>console.error(_))

constfs=require('fs')const{promisify}=require('util')Promise.all(['x','y'].map(_=>promisify(fs.stat)(_))).then(_=>console.log(_)).catch(_=>console.error(_))

constfs=require('fs')const{promisify}=require('util')constStats=files=>Promise.all(files.map(_=>promisify(fs.stat)(_)))Stats(['x','y','z']).then(_=>console.log(_)).catch(_=>console.error(_))

'use strict';require('zone.js');constuuidv4=require('uuid/v4');constmoment=require('moment');exports.middleware=function(req,res,next){constprop={name:'requestId',properties:{requestId:req.header('x-request-id')||uuidv4()}};Zone.current.fork(prop).run(next);};exports.out=function(text){constreqId=Zone.current.get('requestId');console.log(`[${moment().format("YYYY-MM-DD HH:mm:ss.SS")}(${reqId})] ${text}`);};

constlogger=require('./middleware/logger');app.use(logger.middleware);

varexpress=require('express');varrouter=express.Router();constlogger=require('../middleware/logger');router.get('/',function(req,res,next){logger.out(`リクエスト受信 params => 【${req.query.example}】`);// 確認用に遅れてレスポンスを返すsetTimeout(function(){logger.out(`レスポンス送信 params => 【${req.query.example}】`);res.json({test:'Hello'});},Math.floor(Math.random()*1000));});module.exports=router;

[2019-12-09 23:34:05.76(8355c676546235af1cac5d31989d5e5a)] リクエスト受信 params => 【d951a794-11cd-45c8-966f-07f20594de2f】
[2019-12-09 23:34:05.79(30cd941018ec1a704c68177a49f746d2)] リクエスト送信 params => 【ab255a13-83fb-4bf2-9264-525524a5080b】
~~~~~~~~~~~~~~~~~省略~~~~~~~~~~~~~~~~
[2019-12-09 23:34:06.35(4de3ed283bbab693587359c7a53166b7)] リクエスト受信 params => 【e923b5b4-c07b-42e4-a050-56cc3526ddd3】
[2019-12-09 23:34:06.35(63cfc0e59444a18e5858e6b8cb53b6ff)] リクエスト受信 params => 【ea76cd1f-ca91-4d2d-88ad-158fdd31fc37】
[2019-12-09 23:34:06.40(8355c676546235af1cac5d31989d5e5a)] リクエスト送信 params => 【d951a794-11cd-45c8-966f-07f20594de2f】

{"name":"twitter_test","version":"0.0.1","dependencies":{},"devDependencies":{"dotenv":"^8.2.0","fs":"0.0.1-security","twitter":"^1.7.1"}}

consumer_key='ここにAPI keyを入力する'consumer_secret='ここにAPI secret keyを入力する'access_token_key='ここにAccess tokenを入力する'access_token_secret='ここにAccess token secretを入力する'

constfs=require("fs");letTwitter=require('twitter');require('dotenv').config();letclient=newTwitter({consumer_key:process.env.consumer_key,consumer_secret:process.env.consumer_secret,access_token_key:process.env.access_token_key,access_token_secret:process.env.access_token_secret});constmain=async()=>{conststream=awaitclient.stream('statuses/filter',{'track':'#ダイエット'});stream.on('data',asyncdata=>{try{fs.appendFile("tweet/tweet.csv",JSON.stringify(data)+"\n",(err)=>{if(err)throwerr;console.log("正常に書き込みが完了しました");});}catch(error){console.log(error);}});};main();

node twitter.js

import*asfunctionsfrom'firebase-functions';import{BigQuery}from'@google-cloud/bigquery';interfaceCancelReason{id:number;title:string;}/*
 *  月額プランを解約する
 */export=functions.region('asia-northeast1').https.onCall(async(data,context)=>{if(!context.auth){thrownewfunctions.https.HttpsError('unauthenticated','認証エラー',data);}if(!data.reasons||data.reasons.length===0){thrownewfunctions.https.HttpsError('invalid-argument','解約の理由を選択してください',data);}try{// ここで解約（処理は省略）awaitsendBigQuery(context.auth.uid,data);}catch(error){thrownewfunctions.https.HttpsError(error.code,error.message,data);}});/*
 * 解約理由をBigQueryに送信する
 * doc: https://cloud.google.com/nodejs/docs/reference/bigquery/3.0.x/Table#insert
 */asyncfunctionsendBigQuery(uid:string,data:{reasons:CancelReason[];comment:string}){try{constbigQuery=newBigQuery({projectId:process.env.GCLOUD_PROJECT});consttable=bigQuery.dataset('データセットID').table('cancel_payment');constisExists=awaittable.exists();if(!isExists[0]){console.error(`🧨 sendBigQuery: cancel_paymentテーブルがない`);return;}constids:number[]=data.reasons.map(v=>v.id);awaittable.insert({TIMESTAMP:bigQuery.timestamp(newDate()),UID:uid,DATA:JSON.stringify(data),COMMENT:data.comment,REASON_1:ids.includes(1)?1:0,REASON_2:ids.includes(2)?1:0,REASON_3:ids.includes(3)?1:0,REASON_4:ids.includes(4)?1:0,REASON_5:ids.includes(5)?1:0,REASON_6:ids.includes(6)?1:0,});}catch(e){console.error(`🧨 sendBigQuery: ${JSON.stringify(e)}`);thrownewfunctions.https.HttpsError('internal','解約処理中にエラーが発生しました');}}

constbigQuery=newBigQuery({projectId:process.env.GCLOUD_PROJECT});consttable=bigQuery.dataset('データセットID').table('cancel_payment');

SELECTcount(uid)AScancel_count,COUNT(CASEWHENreason_1=1THENreason_1ELSENULLEND)ASreason_1,COUNT(CASEWHENreason_2=1THENreason_2ELSENULLEND)ASreason_2,COUNT(CASEWHENreason_3=1THENreason_3ELSENULLEND)ASreason_3,COUNT(CASEWHENreason_4=1THENreason_4ELSENULLEND)ASreason_4,COUNT(CASEWHENreason_5=1THENreason_5ELSENULLEND)ASreason_5,COUNT(CASEWHENreason_6=1THENreason_6ELSENULLEND)ASreason_6FROM`プロジェクト名.データセット名.cancel_payment`

npm i http crypto querystring axios

consthttp=require('http')crypto=require('crypto')qs=require('querystring')axios=require('axios');

constgetRequestTokenUrl='https://api.twitter.com/oauth/request_token';constgetAccessTokenUrl='https://api.twitter.com/oauth/access_token';constcallbackUrl='<Sever URI>';constconsumerKey='xxxxx';constconsumerSecret='xxxxx';constkeyOfSign=encodeURIComponent(consumerSecret)+'&';

classRequestTokenMethods{constructor(){this.dataOAuth={oauthToken:'',oauthTokenSecret:'',oauthVerifier:'',// oauthVerifierとユーザ名のハッシュ化した値の保持などに利用oauthHashKey:'',};}getOAuthData(){returnthis.dataOAuth;}setOAuthData(props,reqProps='oauthToken'){switch(reqProps){case'oauthToken':this.dataOAuth.oauthToken=props;case'oauthTokenSecret':this.dataOAuth.oauthTokenSecret=props;case'oauthVerifier':this.dataOAuth.oauthVerifier=props;case'oauthHashKey':this.dataOAuth.oauthHashKey=props;default:return;}}...}

constparamsRequestToken={oauth_callback:callbackUrl,oauth_consumer_key:consumerKey,oauth_signature_method:'HMAC-SHA1',oauth_timestamp:(()=>{constdate=newDate();returnMath.floor(date.getTime()/1000);})(),oauth_nonce:(()=>{constdate=newDate();returndate.getTime();})(),oauth_version:'1.0',};

asyncgetRequestToken(params){Object.keys(params).forEach(item=>{params[item]=encodeURIComponent(params[item]);});letrequestParams=Object.keys(params).map(item=>{returnitem+'='+params[item];});requestParams.sort((a,b)=>{if(a<b)return-1;if(a>b)return1;return0;});requestParams=encodeURIComponent(requestParams.join('&'));constdataOfSign=(()=>{returnencodeURIComponent('POST')+'&'+encodeURIComponent(getRequestTokenUrl)+'&'+requestParams;})();constsignature=(()=>{returncrypto.createHmac('sha1',keyOfSign).update(dataOfSign).digest('base64');})();params['oauth_signature']=encodeURIComponent(signature);letheaderParams=Object.keys(params).map(item=>{returnitem+'='+params[item];});headerParams=headerParams.join(',');constheader={'Authorization':'OAuth '+headerParams};//オプションを定義constoptions={url:getRequestTokenUrl,headers:header,};//リクエスト送信returnawaitthis.getTokenSync(options)}

constrequestMethod=newRequestTokenMethods();constparamsAccessToken={consumer_key:consumerKey,oauth_token:requestMethod.oauth_token,oauth_signature_method:'HMAC-SHA1',oauth_timestamp:(()=>{constdate=newDate();returnMath.floor(date.getTime()/1000);})(),oauth_verifier:requestMethod.oauth_verifier,oauth_nonce:(()=>{constdate=newDate();returndate.getTime();})(),oauth_version:'1.0',};

asyncgetAccessToken(params){Object.keys(params).forEach(item=>{params[item]=encodeURIComponent(params[item]);});letrequestParams=Object.keys(params).map(item=>{returnitem+'='+params[item];});requestParams.sort((a,b)=>{if(a<b)return-1;if(a>b)return1;return0;});requestParams=encodeURIComponent(requestParams.join('&'));constdataOfSign=(()=>{returnencodeURIComponent('POST')+'&'+encodeURIComponent(getAccessTokenUrl)+'&'+requestParams;})();constsignature=(()=>{returncrypto.createHmac('sha1',keyOfSign).update(dataOfSign).digest('base64');})();params['oauth_signature']=encodeURIComponent(signature);letheaderParams=Object.keys(params).map(item=>{returnitem+'='+params[item];});headerParams=headerParams.join(',');constheader={'Authorization':'OAuth '+headerParams};//オプションを定義constoptions={url:getAccessTokenUrl,headers:header,};//リクエスト送信returnthis.getTokenSync(options)}

asyncgetTokenSync(options){returnaxios.post(options.url,options.headers).then(res=>{consttmpData={oauth_token:qs.parse(res.data).oauth_token,oauth_token_secret:qs.parse(res.data).oauth_token_secret,}returntmpData;}).catch(err=>{throwerr})}}

consthttpServer=newhttp.createServer((req,res)=>{res.setHeader('Access-Control-Allow-Origin','https://api.twitter.com/*');res.setHeader('Access-Control-Allow-Origin','<Client URL>');res.setHeader('Access-Control-Allow-Headers','Origin, X-Requested-With, Content-Type, Accept');res.setHeader('Access-Control-Allow-Methods','GET, POST');...}).listen(process.env.PORT===true?process.env.PORT:8080);;

if(req.method==='POST'){req.on('data',(data)=>{constresData=data+'';constparamsRequestToken={oauth_callback:callbackUrl,oauth_consumer_key:consumerKey,oauth_signature_method:'HMAC-SHA1',oauth_timestamp:(()=>{constdate=newDate();returnMath.floor(date.getTime()/1000);})(),oauth_nonce:(()=>{constdate=newDate();returndate.getTime();})(),oauth_version:'1.0'};constrequestMethod=newRequestTokenMethods();if(resData==='request_token'&&requestMethod.getOAuthData().oauthVerifier!==''){requestMethod.getRequestToken(paramsRequestToken).then((tokenOAuth)=>{constoauthUri='https://api.twitter.com/oauth/authorize?oauth_token='+encodeURIComponent(tokenOAuth.oauth_token),req.on('end',()=>{res.writeHead(200,{'Content-Type':'application/json'});res.write(oauthUri);res.end();});}).catch(err=>{console.log(err);res.writeHead(408,{'Content-Type':'application/json'});res.write('error!');res.end();});})}}　elseif(req.method==='GET'){if((window.location.search+'').match(/oauth_verifier/)){constgetQueryVariable=(variable)=>{constreqURI=req.protocol+'://'+req.headers.host+req.url;constquery=reqURI.substring(1);constvarbs=query.split('&');varbs.forEach(varb,()=>{constpair=varb.split('=');if(pair[0]===variable){returnpair[1];}})}constrequestMethod=newRequestTokenMethods();constdataOAuthToken=requestMethod.getOAuthData();requestMethod.setOAuthData(getQueryVariable('oauth_verifier'),'oauthVerifier');requestMethod.setOAuthData(getQueryVariable('oauth_token'),'oauthToken');constparamsAccessToken={consumer_key:consumerKey,oauth_token:requestMethod.oauthToken,oauth_signature_method:'HMAC-SHA1',oauth_timestamp:(()=>{constdate=newDate();returnMath.floor(date.getTime()/1000);})(),oauth_verifier:requestMethod.oauthVerifier,oauth_nonce:(()=>{constdate=newDate();returndate.getTime();})(),oauth_version:'1.0',};requestMethod.getAccessToken(paramsAccessToken).then((tokenOAuth)=>{requestMethod.setOAuthData(tokenOAuth.oauthToken,'oauth_token');requestMethod.setOAuthData(tokenOAuth.oauthTokenSecret,'oauth_token_secret');constkeyOfToken=crypto.createHmac('sha256',dataOAuthToken.oauthVerifier+token.oauthToken);requestMethod.setOAuthData(keyOfToken.update().digest('base64'),'oauthHashKey');res.writeHead(302,{'Location':'<Client URL>'+encodeURIComponent('?id='+dataOAuthToken.oauthHashKey),});res.write('redirect!');res.end();}else{res.writeHead(408,{'Content-Type':'application/json'});res.write('error!');res.end();}}