getAddresses test service for getting eth and bnc addresses by private key

src/test-services/getAddresses/Dockerfile

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+FROM node:10.16.0-alpine
+
+WORKDIR /test
+
+COPY package.json /test/
+
+RUN npm install
+
+COPY testGetAddresses.js /test/
+
+ENTRYPOINT ["node", "testGetAddresses.js"]

src/test-services/getAddresses/package.json

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+{
+  "name": "get-addresses",
+  "version": "0.0.1",
+  "dependencies": {
+    "ethers": "4.0.37",
+    "bech32": "1.1.3"
+  }
+}

src/test-services/getAddresses/run.sh

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+#!/bin/bash
+
+set -e
+
+cd $(dirname "$0")
+
+docker build -t get-addresses . > /dev/null
+
+docker run --rm get-addresses $@

src/test-services/getAddresses/testGetAddresses.js

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+const { utils } = require('ethers')
+const bech32 = require('bech32')
+const crypto = require('crypto')
+
+const privateKey = process.argv[2].startsWith('0x') ? process.argv[2] : '0x' + process.argv[2]
+
+const ethAddress = utils.computeAddress(privateKey)
+const publicKey = utils.computePublicKey(privateKey, true)
+
+console.log(`Eth address: ${ethAddress}\nBnc address: ${publicKeyToAddress(publicKey)}`)
+
+function publicKeyToAddress (publicKey) {
+  const sha256Hash = sha256(Buffer.from(publicKey.substr(2), 'hex'))
+  const hash = ripemd160(Buffer.from(sha256Hash, 'hex'))
+  const words = bech32.toWords(Buffer.from(hash, 'hex'))
+  return bech32.encode('tbnb', words)
+}
+
+function sha256 (bytes) {
+  return crypto.createHash('sha256').update(bytes).digest('hex')
+}
+
+function ripemd160 (bytes) {
+  return crypto.createHash('ripemd160').update(bytes).digest('hex')
+}