npm install --save @material-ui/icons @material-ui/core @material-ui/system @material-ui/styles

npm install-g @vue/cli

vue create <project-name>
cd<project-name>
npm run serve

yarn global add @vue/cli

vue create <project-name>
cd<project-name>
npm run serve

npm init nuxt-app <project-name>
cd<project-name>
npm run dev (yarn dev)

npx create-nuxt-app <project-name>
cd<project-name>
npm run dev

yarn create nuxt-app <project-name>
cd<project-name>
yarn dev

npm init react-app <project-name>
cd<project-name>
npm start

npx create-react-app <project-name>
cd<project-name>
npm start

yarn create react-app <project-name>
cd<project-name>
yarn start

npx create-next-app <project-name>
cd<project-name>
npm run dev

yarn create next-app <project-name>
cd<project-name>
yarn dev

npm install-g @angular/cli

ng new <project-name>
cd<project-name>
ng serve --open

npm install-g @angular/cli

ng config -g cli.packageManager yarn
ng new <project-name>
cd<project-name>
ng serve --open

npx degit sveltejs/template <project-name>
cd<project-name>
npm install
npm run dev

varconnectionString='{Your device connection string here}';// ←ここに`プライマリ接続文字列`を貼り付ける。varMqtt=require('azure-iot-device-mqtt').Mqtt;varDeviceClient=require('azure-iot-device').ClientvarMessage=require('azure-iot-device').Message;varclient=DeviceClient.fromConnectionString(connectionString,Mqtt);setInterval(function(){// 送信するデータを生成する。（本当はセンサーで測定した値を入れるがシミュレーションのため乱数を使用）vartemperature=20+(Math.random()*15);varmessage=newMessage(JSON.stringify({temperature:temperature,humidity:60+(Math.random()*20)}));message.properties.add('temperatureAlert',(temperature>30)?'true':'false');console.log('Sending message: '+message.getData());// イベントを送信するclient.sendEvent(message,function(err){if(err){console.error('send error: '+err.toString());}else{console.log('message sent');}});},1000);

$ node SimulatedDevice.js

constconnectionString=`Endpoint=**********************;SharedAccessKeyName=*****************;EntityPath=********************`;varprintError=function(err){console.log(err.message);};varprintMessages=function(messages){for(constmessageofmessages){console.log("Telemetry received: ");console.log(JSON.stringify(message.body));console.log("Properties (set by device): ");console.log(JSON.stringify(message.properties));console.log("System properties (set by IoT Hub): ");console.log(JSON.stringify(message.systemProperties));console.log("");}};asyncfunctionmain(){console.log("IoT Hub Quickstarts - Read device to cloud messages.");constclientOptions={// webSocketOptions: {//   webSocket: WebSocket,//   webSocketConstructorOptions: {}// }};constconsumerClient=newEventHubConsumerClient("$Default",connectionString,clientOptions);// イベントハブのストリームからデータを取得するconsumerClient.subscribe({processEvents:printMessages,processError:printError,});}main().catch((error)=>{console.error("Error running sample:",error);});

$ node ReadDeviceToCloudMessages.js

node:internal/modules/cjs/loader:928
  throw err;

Error: Cannot find module 'http-errors'
Require stack:
- hoge\app.js
- hoge\bin\www

> node-express@0.0.0 start
> node ./bin/www

GET / 200 1701.982 ms - 170
GET /stylesheets/style.css 200 9.003 ms - 111
GET /favicon.ico 404 33.771 ms - 1132

$ npm install -g express-generator

$ mkdir exg-test
$ cd exg-test

$ express -h

  Usage: express [options] [dir]

  Options:

        --version        output the version number
    -e, --ejs            add ejs engine support
        --pug            add pug engine support
        --hbs            add handlebars engine support
    -H, --hogan          add hogan.js engine support
    -v, --view <engine>  add view <engine> support (dust|ejs|hbs|hjs|jade|pug|twig|vash) (defaults to jade)
        --no-view        use static html instead of view engine
    -c, --css <engine>   add stylesheet <engine> support (less|stylus|compass|sass) (defaults to plain css)
        --git            add .gitignore
    -f, --force          force on non-empty directory
    -h, --help           output usage information

$ express --view=ejs --css=sass

 ./
 ../
 app.js
 bin/
 package.json
 public/
 routes/
 views/

$ npm install

$ npm start

#! /usr/bin/node
// ---------------------------------------------------------------//  azure_subscribe.js////                  Jan/19/2021//// ---------------------------------------------------------------'use strict'const{EventHubConsumerClient}=require("@azure/event-hubs");consteventHubsCompatibleEndpoint="sb://ihsuprodkwres017dednamespace.servicebus.windows.net/"consteventHubsCompatiblePath="iothub-ehub-iot-aa-344012-58f0095d47"constiotHubSasKey="QThy0z2eiCOzKcv2Ni5DZCnHL8Gtabcdefghd4pj5D4="constconnectionString=`Endpoint=${eventHubsCompatibleEndpoint};EntityPath=${eventHubsCompatiblePath};SharedAccessKeyName=service;SharedAccessKey=${iotHubSasKey}`;varprintError=function(err){console.log(err.message);};varprintMessages=function(messages){for(constmessageofmessages){console.log("Telemetry received: ");console.log(JSON.stringify(message.body));console.log("");/*
    console.log("Properties (set by device): ");
    console.log(JSON.stringify(message.properties));
    console.log("System properties (set by IoT Hub): ");
    console.log(JSON.stringify(message.systemProperties));
    console.log("");
*/}};asyncfunctionmain(){console.log("IoT Hub Quickstarts - Read device to cloud messages.");constclientOptions={};constconsumerClient=newEventHubConsumerClient("$Default",connectionString,clientOptions);consumerClient.subscribe({processEvents:printMessages,processError:printError,});}main().catch((error)=>{console.error("Error running sample:",error);});// ---------------------------------------------------------------

az iot hub show --query properties.eventHubEndpoints.events.endpoint --name{
your IoT Hub name}

az iot hub show --query properties.eventHubEndpoints.events.path --name{your
 IoT Hub name}

az iot hub policy show --name service --query primaryKey --hub-name{your IoT
 Hub name}

export NODE_PATH=/usr/lib/node_modules
./azure_subscribe.js

$ docker -v
Docker version 20.10.2, build 2291f61

$ npm -v
6.14.5

$ node -v
v13.11.0

$ pwd
~/{project_name}

{project_name}├─ node_modules
 |   └─ ...
 ├─ src
 |   └─ index.js
 └─ docker-compose.yml
 └─ Dockerfile
 └─ package.json
 └─ package-lock.json

FROM node:12# アプリケーションディレクトリを作成するRUN mkdir-p /usr/src/app
WORKDIR /usr/src/app# Dockerfileが置かれているディレクトリ以下をコピーADD . /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COPY package*.json /usr/src/appRUN 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 . /usr/src/app

version: '3'
services:
  app:
    build: .
    command: bash -c 'node src/index.js'
    image: node_test
    volumes: .:/usr/src/app
    ports: "8080:8080"
    tty: true

'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}`);

$ docker-compose up

export PATH=/usr/local:$PATHexport PATH=$HOME/.nodebrew/current/bin:$PATH

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

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

npm install mqtt --save

constmqtt=require('mqtt')constCHANNEL_TOKEN='*********************'constclient=mqtt.connect('mqtt://mqtt.beebotte.com',{username:'token:'+CHANNEL_TOKEN,password:''})constonMessageCallback=(topic,message)=>{console.log(topic+''+message)}client.on('message',onMessageCallback)client.subscribe('TestCh/Hoge')

constmqtt=require('mqtt')constCHANNEL_TOKEN='*********************'constclient=mqtt.connect('mqtt://mqtt.beebotte.com',{username:'token:'+CHANNEL_TOKEN,password:''});setInterval(function(){constmessage='Hello, world!'client.publish('TestCh/Hoge',message)},1000);

node publisher.js

node subscriber.js
#TestCh/Hoge   Hello, world!#TestCh/Hoge   Hello, world!#...

constfoo=require("./sub.js");// sub.jsからmodule.exportsで指定した変数を読み込み、変数fooに代入するfoo("bee");// bee

consthoge=function(bar){console.log(bar);}module.exports=hoge;// main.jsからrequireされたら、hogeという変数を渡す

constexpress=require("express");constapp=express();constmysql=require("mysql");constdbcn=mysql.createConnection({host:"localhost",user:"root",password:"1234",database:"idea"})app.set("view engine","ejs");app.get("/",(req,res)=>{constsql="select * from ideatext";dbcn.query(sql,function(err,result,field){if(err)throwerr;console.log(result);res.render("index",{idea:result});})})app.listen(3000);

constexpress=require("express");constapp=express();constmysql=require("mysql");constdbcn=require("./dbConnect.js")constconnection=dbcn.dbcn;app.set("view engine","ejs");app.get("/",(req,res)=>{constsql="select * from ideatext";dbcn.query(sql,function(err,result,field){if(err)throwerr;console.log(result);res.render("index",{idea:result});})})app.listen(3000);

constmysql=require("mysql");constdbcn=mysql.createConnection({host:"localhost",user:"root",password:"1234",database:"idea"})module.exports=dbcn;

PS G:\data\html> npm install gulp-sass --save-dev
npm WARN deprecated fsevents@1.2.13: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.

> node-sass@4.14.1 install G:\data\html\node_modules\gulp-sass\node_modules\node-sass
> node scripts/install.js

Downloading binary from https://github.com/sass/node-sass/releases/download/v4.14.1/win32-x64-88_binding.node
Cannot download "https://github.com/sass/node-sass/releases/download/v4.14.1/win32-x64-88_binding.node": 

HTTP error 404 Not Found

Hint: If github.com is not accessible in your location
      try setting a proxy via HTTP_PROXY, e.g.

      export HTTP_PROXY=http://example.com:1234

or configure npm proxy via

      npm config set proxy http://example.com:8080

> node-sass@4.14.1 postinstall G:\data\html\node_modules\gulp-sass\node_modules\node-sass 
> node scripts/build.js

Building: C:\Program Files\nodejs\node.exe G:\data\html\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
gyp info it worked if it ends with ok
gyp verb cli [
gyp verb cli   'C:\\Program Files\\nodejs\\node.exe',
gyp verb cli   'G:\\data\\html\\node_modules\\node-gyp\\bin\\node-gyp.js',
gyp verb cli   'rebuild',
gyp verb cli   '--verbose',
gyp verb cli   '--libsass_ext=',
gyp verb cli   '--libsass_cflags=',
gyp verb cli   '--libsass_ldflags=',
gyp verb cli   '--libsass_library='
gyp verb cli ]
gyp info using node-gyp@3.8.0
gyp info using node@15.5.0 | win32 | x64
gyp verb command rebuild []
gyp verb command clean []
gyp verb clean removing "build" directory
gyp verb command configure []
gyp verb check python checking for Python executable "python2" in the PATH
gyp verb `which` failed Error: not found: python2
gyp verb `which` failed     at getNotFoundError (G:\data\html\node_modules\which\which.js:13:12)
gyp verb `which` failed     at F (G:\data\html\node_modules\which\which.js:68:19)
gyp verb `which` failed     at E (G:\data\html\node_modules\which\which.js:80:29)
gyp verb `which` failed     at G:\data\html\node_modules\which\which.js:89:16
gyp verb `which` failed     at G:\data\html\node_modules\isexe\index.js:42:5
gyp verb `which` failed     at G:\data\html\node_modules\isexe\windows.js:36:5
gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:199:21)
gyp verb `which` failed  python2 Error: not found: python2
gyp verb `which` failed     at getNotFoundError (G:\data\html\node_modules\which\which.js:13:12)
gyp verb `which` failed     at F (G:\data\html\node_modules\which\which.js:68:19)
gyp verb `which` failed     at E (G:\data\html\node_modules\which\which.js:80:29)
gyp verb `which` failed     at G:\data\html\node_modules\which\which.js:89:16
gyp verb `which` failed     at G:\data\html\node_modules\isexe\index.js:42:5
gyp verb `which` failed     at G:\data\html\node_modules\isexe\windows.js:36:5
gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:199:21) {
gyp verb `which` failed   code: 'ENOENT'
gyp verb `which` failed }
gyp verb check python checking for Python executable "python" in the PATH
gyp verb `which` succeeded python C:\Documents and Settings\●●●\AppData\Local\Programs\Python\Python39\python.EXE
gyp ERR! configure error 
gyp ERR! stack Error: Command failed: C:\Documents and Settings\●●●\AppData\Local\Programs\Python\Python39\python.EXE -c import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack   File "<string>", line 1
gyp ERR! stack     import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack                       ^
gyp ERR! stack SyntaxError: invalid syntax
gyp ERR! stack
gyp ERR! stack     at ChildProcess.exithandler (node:child_process:333:12)
gyp ERR! stack     at ChildProcess.emit (node:events:376:20)
gyp ERR! stack     at maybeClose (node:internal/child_process:1063:16)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (node:internal/child_process:295:5)
gyp ERR! System Windows_NT 10.0.19042
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "G:\\data\\html\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd G:\data\html\node_modules\gulp-sass\node_modules\node-sass
gyp ERR! node -v v15.5.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok
Build failed with error code: 1
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.2.7 (node_modules\chokidar\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm WARN GulpTask@1.0.0 No description
npm WARN GulpTask@1.0.0 No repository field.
npm ERR! node-sass@4.14.1 postinstall: `node scripts/build.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the node-sass@4.14.1 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Documents and Settings\●●●\AppData\Roaming\npm-cache\_logs\2021-01-20T16_23_09_981Z-debug.log 

#! /usr/bin/node
// ---------------------------------------------------------------//  azure_endpoint_subscribe.js////                  Jan/21/2021//// ---------------------------------------------------------------'use strict'constdotenv=require('dotenv')const{EventHubConsumerClient}=require("@azure/event-hubs");dotenv.config()constendpoint_connectionString=`${process.env.ENDPOINT}`varprintError=function(err){console.log(err.message)};varprintMessages=function(messages){for(constmessageofmessages){console.log("Telemetry received: ")console.log(JSON.stringify(message.body))console.log("")/*
    console.log("Properties (set by device): ");
    console.log(JSON.stringify(message.properties));
    console.log("System properties (set by IoT Hub): ");
    console.log(JSON.stringify(message.systemProperties));
    console.log("");
*/}}// ---------------------------------------------------------------asyncfunctionmain(){console.error("*** azure_endpoint_subscribe.js *** start ***")constclientOptions={}constconsumerClient=newEventHubConsumerClient("$Default",endpoint_connectionString,clientOptions)consumerClient.subscribe({processEvents:printMessages,processError:printError,})}main().catch((error)=>{console.error("Error running sample:",error)})// ---------------------------------------------------------------

ENDPOINT="Endpoint=sb://ihsuprodkwres017dednamespace.servicebus.windows.net/;SharedAccessKeyName=iothubowner;SharedAccessKey=vL1ze1abcdefgh48cMK7l6nv6+o37k2s9F70SD+LLZUs=;EntityPath=iothub-ehub-iot-bb-344012-58f0012d36"

consttoLowerCaseKey=function(object){letnewObject={};for(letkeyinobject){if(object.hasOwnProperty(key)){newObject[key.toLocaleLowerCase()]=object[key];}}returnnewObject}

// OPTIONSリクエスト(プリフライトリクエスト)への応答
// 参考: https://developer.mozilla.org/ja/docs/Web/HTTP/CORS#preflighted_requests
if (req.method == "OPTIONS") {
    res.send(200);
} else {
    next();
}

'use strict';//ファイルを読み込むconstfs=require('fs');constreadline=require('readline');constrs=fs.createReadStream('.hoge.csv');constrl=readline.createInterface({input:rs,output:{}});rl.on('line',lineString=>{console.log(lineString);});

rl.on('line', lineString => {
  console.log(lineString);
}); 

rl.on('line',lineString=>{constcolumns=lineString.split(',');constyear=parseInt(columns[0]);constprefecture=columns[1];constpopu=parseInt(columns[3]);if(year===2010||year===2015){console.log(year);console.log(prefecture);console.log(popu);}});

const columns = lineString.split(',');

 const year = parseInt(columns[0]);
  const prefecture = columns[1];
  const popu = parseInt(columns[3]);

  if (year === 2010 || year === 2015) {
    console.log(year);
    console.log(prefecture);
    console.log(popu);
  }

'use strict';constfs=require('fs');constreadline=require('readline');constrs=fs.createReadStream('.hoge.csv');constrl=readline.createInterface({input:rs,output:{}});constprefectureDataMap=newMap();// key: 都道府県 value: 集計データのオブジェクトrl.on('line',lineString=>{constcolumns=lineString.split(',');constyear=parseInt(columns[0]);constprefecture=columns[1];constpopu=parseInt(columns[3]);if(year===2010||year===2015){letvalue=prefectureDataMap.get(prefecture);if(!value){value={popu10:0,popu15:0,change:null};}if(year===2010){value.popu10=popu;}if(year===2015){value.popu15=popu;}prefectureDataMap.set(prefecture,value);}});rl.on('close',()=>{console.log(prefectureDataMap);});

const prefectureDataMap = new Map(); // key: 都道府県 value: 集計データのオブジェクト

let value = prefectureDataMap.get(prefecture);　//都道府県のデータをとる
if (!value) {　//　データが取れてない時
  value = {
    popu10: 0,　// 2010年の人口
    popu15: 0,　// 2015年の人口
    change: null //変化率
  };
}

rl.on('close', () => {
  console.log(prefectureDataMap);
}

nodeindex.jsinternal/modules/cjs/loader.js:638throwerr;^Error:Cannotfindmodule'express'atFunction.Module._resolveFilename(internal/modules/cjs/loader.js:636:15)atFunction.Module._load(internal/modules/cjs/loader.js:562:25)atModule.require(internal/modules/cjs/loader.js:692:17)atrequire(internal/modules/cjs/helpers.js:25:18)atObject.<anonymous>(/home/ec2-user/environment/photo/realitycapture/reality.capture-nodejs-photo.to.3d/index.js:18:15)atModule._compile(internal/modules/cjs/loader.js:778:30)atObject.Module._extensions..js(internal/modules/cjs/loader.js:789:10)atModule.load(internal/modules/cjs/loader.js:653:32)attryModuleLoad(internal/modules/cjs/loader.js:593:12)atFunction.Module._load(internal/modules/cjs/loader.js:585:3)

npm insatll express

.
├── README.md
├── package.json
├── vercel.json
├── api
│   └── index.ts
├── src
│   ├── createCard.ts
│   ├── createElement.tsx
│   └── getTwitterData.ts
└── tsconfig.json

exportfunctiongetTwitterData({id})=>{constheaders={Authorization:`Bearer ${process.env.TWITTER_BEARER_TOKEN}`}constparams={screen_name:id}constuserShowEndoPoint='https://api.twitter.com/1.1/users/show.json'returnnewPromise((resolve,reject)=>{axios.get(userShowEndoPoint,{headers,params}).then((response)=>resolve(response.data)).catch(async(err)=>{returnreject(err.response)})})}

importchromefrom'chrome-aws-lambda'importpuppeteerfrom'puppeteer-core'

constbrowser=awaitpuppeteer.launch(process.env.AWS_REGION?{args:chrome.args,executablePath:awaitchrome.executablePath,headless:chrome.headless}:{args:[],executablePath:process.platform==='win32'?'C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe':process.platform==='linux'?'/usr/bin/google-chrome':'/Applications/Google Chrome.app/Contents/MacOS/Google Chrome'})

import*asReactfrom'react'exportfunctioncreateElement(tweetData){constheader={height:'33%',width:'100%',overflow:'hidden'}constheaderImage={height:'100%',width:'100%',objectFit:'cover'}return(<divstyle={header}><imgsrc={tweetData.profile_banner_url}alt="header image"height="100px"width="300px"style={headerImage}/></div>)}

import{renderToString}from'react-dom/server'import{createElement}from'./createElement'

constelement=createElement(tweetData)constpage=awaitbrowser.newPage()awaitpage.setContent(`<html>
      <head>
        <style>
          body {
            width: "${width}";
            height: "${height}";
          }
        </style>
      </head>
      <body>${renderToString(element)}</body>
    </html>
  `)constimage=awaitpage.$('body')constbuffer=awaitimage.screenshot({encoding:'base64'})

awaitchrome.font('https://rawcdn.githack.com/googlefonts/noto-cjk/be6c059ac1587e556e2412b27f5155c8eb3ddbe6/NotoSansCJKjp-Regular.otf')awaitchrome.font('https://rawcdn.githack.com/googlefonts/noto-fonts/ea9154f9a0947972baa772bc6744f1ec50007575/hinted/NotoSans/NotoSans-Regular.ttf')

exportdefaultasync(req,res)=>{const{id}=req.queryres.send(id)}

return`<svg
    xmlns="http://www.w3.org/2000/svg"
    width="${width}"
    height="${height}"
    viewport="0 0 ${width}${height}"
    fill="none"
  >
    <image href="data:image/jpeg;base64,${buffer}" x="0" y="0" width="100%" height="100%"/>
  </svg>
`

import{createCard}from'../src/createCard'import{getTwitterData}from'../src/getTwitterData'exportdefaultasync(req,res)=>{constresult=awaitgetTwitterData(req.query)// Twitterのデータ取得constsvgImage=awaitcreateCard()// svg画像のHTMLelementを取得res.setHeader('Content-Type','image/svg+xml')// svgを指定res.setHeader('Cache-Control',`public, max-age=${60*60*12}`)// データの変化があまりないのでキャッシュを１２時間にres.send(svgImage)// データを返す}

npm install

npm start

constrestify=require('restify');constfs=require('fs');// Create HTTP serverconstserver=restify.createServer();server.listen(process.env.port||process.env.PORT||3978,()=>{console.log("Please open the following URLs in Browser")console.log("[URL A]");console.log("http://localhost:3978")console.log("[URL B]");console.log("http://localhost:3978/test-get")console.log("[URL C]");console.log("http://<Your Localhost Address>:3978/test-get");});// Listen for incoming requests.server.get('/',(req,res)=>{res.writeHead(200,{'Content-Type':'text/html'});res.write("Welcome to the start test page");res.end();});server.get('/test-get',(req,res)=>{fs.readFile("./index.html",'UTF-8',function(err,data){res.writeHead(200,{'Content-Type':'text/html'});res.write(data);res.end();});});server.post('/test-post',(req,res)=>{res.send({TestBody:"Test Post Response Body"});res.end()});

<html><p>Hello from index.html</p></html>

ipconfig

code .

$ npm install json-server --save-dev

{"molcars":[{"name":"ポテト","favoriteFood":"ニンジン"},{"name":"シロモ","favoriteFood":"レタス"}],"episodes":[{"id":1,"title":"渋滞は誰のせい？"},{"id":2,"title":"銀行強盗をつかまえろ！"}]}

$ json-server --watch db.json

$ curl -X GET 'http://localhost:3000/molcars'[{"name": "ポテト",
    "favoriteFood": "ニンジン"},
  {"name": "シロモ",
    "favoriteFood": "レタス"}]

$ curl -X GET 'http://localhost:3000/episodes'[{"id": 1,
    "title": "渋滞は誰のせい？"},
  {"id": 2,
    "title": "銀行強盗をつかまえろ！"}]

constjsonServer=require('json-server')constserver=jsonServer.create()constrouter=jsonServer.router('db.json')constmiddlewares=jsonServer.defaults()server.use(middlewares)server.use(router)server.listen(3000,()=>{console.log('JSON Server is running')})

$ node server.js

{"id":2}

constjsonServer=require('json-server')constserver=jsonServer.create()constrouter=jsonServer.router('db.json')constmiddlewares=jsonServer.defaults()server.use(middlewares)/** ↓ POST を GET として処理する場合はここを追加 ↓ */server.use(jsonServer.bodyParser)// POST, PUT, PATCH を扱うために必要server.use((req,res,next)=>{if(req.method==='POST'){// POST のリクエストを GET に変換req.method='GET'}next()})/** ↑ POST を GET として処理する場合はここを追加 ↑ */server.use(router)server.listen(3000,()=>{console.log('JSON Server is running')})

$ node server.js

$ curl -X POST 'http://localhost:3000/molcars'[{"name": "ポテト",
    "favoriteFood": "ニンジン"},
  {"name": "シロモ",
    "favoriteFood": "レタス"}]

constjsonServer=require('json-server')constserver=jsonServer.create()constrouter=jsonServer.router('db.json')constmiddlewares=jsonServer.defaults()server.use(middlewares)server.use(router)server.listen(3000,()=>{console.log('JSON Server is running')})/** ↓ サーバサイドエラーをモックしたい場合はここを追加 ↓ */router.render=(req,res)=>{// ステータスコードを設定res.status(500).jsonp({error:"PUI PUI"})}/** ↑ サーバサイドエラーをモックしたい場合はここを追加 ↑ */

$ node server.js

$ curl -X GET 'http://localhost:3000/molcars'{"error": "PUI PUI"}