express.md

const nodersa = require('node-rsa')
const axios = require('axios')
const express = require('express')

const server = express()

const PRIVATE_KEY = "-----BEGIN PRIVATE KEY-----YOUR KEY HERE-----END PRIVATE KEY-----"
const key = new nodersa(PRIVATE_KEY, 'pkcs8-private-pem', { encryptionScheme: 'pkcs1' })

const AppKey = 'AppKey'
const MasterSecret = 'MasterSecret'
const Authorization = new Buffer(`${AppKey}:${MasterSecret}`).toString('base64')

server.post('/api/loginWithToken', async function (req, res) {
  const { loginWithToken } = req.body
  const { data } = await axios.post(
    'https://api.verification.jpush.cn/v1/web/loginTokenVerify',
    { loginToken },
    { headers: { Authorization }, auth: { username: AppKey, password: MasterSecret } }
  )
  
  const phone = key.decrypt(data.phone, 'utf-8')
})

server.listen(3000, console.log)

meteor.md

import nodersa from 'node-rsa'
import axios from 'axios'

const PRIVATE_KEY = "-----BEGIN PRIVATE KEY-----YOUR KEY HERE-----END PRIVATE KEY-----"
const key = new nodersa(PRIVATE_KEY, 'pkcs8-private-pem', { encryptionScheme: 'pkcs1' })

const AppKey = 'AppKey'
const MasterSecret = 'MasterSecret'
const Authorization = new Buffer(`${AppKey}:${MasterSecret}`).toString('base64')

Meteor.methods({
  async loginWithToken(loginToken) {
    const { data } = await axios.post(
      'https://api.verification.jpush.cn/v1/web/loginTokenVerify',
      { loginToken },
      { headers: { Authorization }, auth: { username: AppKey, password: MasterSecret } }
    )

    const phone = key.decrypt(data.phone, 'utf-8')
  }
})