【初心者向け】NEM LibraryとJavaScriptを使った開発にちょっとだけ入門してみる ref: https://qiita.com/y-temp4/items/9be4b041565a4bb24dab

.babelrc

{
  "presets": ["env"]
}

file0.txt

$ mkdir nem-library-sample
$ cd nem-library-sample

file1.txt

$ npm install -g yarn

file2.txt

$ yarn -v
1.3.2

file3.txt

$ yarn add nem-library

file4.txt

$ yarn add -D babel-cli babel-preset-env

file8.txt

$ yarn run build

file9.txt

$ node lib/index.js
AccountInfoWithMetaData {
  balance:
   Balance {
     balance: 50482710823914,
     vestedBalance: 50482622997125,
     unvestedBalance: 87826789 },
  importance: 0.005727549928501352,
  publicAccount:
   PublicAccount {
     address:
      Address {
        value: 'TALICEROONSJCPHC63F52V6FY3SDMSVAEUGHMB7C',
        networkType: 152 },
     publicKey: '74375c15c6ce6bdbde59be88a069745a0de34444ea933f8c9f46ef407cf30196' },
  harvestedBlocks: 134648,
  cosignatoriesCount: undefined,
  minCosignatories: undefined,
  status: 'UNLOCKED',
  remoteStatus: 'INACTIVE',
  cosignatoryOf: [],
  cosignatories: [] }

index.js

import {AccountHttp, NEMLibrary, NetworkTypes, Address} from "nem-library";

// Initialize NEMLibrary for TEST_NET Network
NEMLibrary.bootstrap(NetworkTypes.TEST_NET);

const address = new Address("TALICEROONSJCPHC63F52V6FY3SDMSVAEUGHMB7C");

const accountHttp = new AccountHttp();
accountHttp.getFromAddress(address).subscribe(accountInfoWithMetaData => {
    console.log(accountInfoWithMetaData);
});

package.json

{
  "dependencies": {
    "nem-library": "^0.10.0"
  },
+ "scripts": {
+   "build": "babel src -d lib"
+ },
  "devDependencies": {
    "@babel/cli": "^7.0.0-beta.32",
    "@babel/preset-env": "^7.0.0-beta.32"
  }
}