我有一个加密货币（Nano）节点在我的计算机上本地运行。它有一个API，我已经测试过，我可以成功地使用curl调用它。例如：
curl -d '{ "action": "account_balance", "account": "xrb_1aaprwcu9fac1tw3wesud5txb1zuiroti5xfr19bwozitjnnmbcbwpr1w95f" }' localhost:7076
但是，我尝试在节点脚本中执行相同的操作，并继续获取ECONNREFUSED
下面是我的节点脚本（重要部分）。

const axios = require('axios')
const config = require('./config')

const rpc = axios.create({
  baseURL: 'localhost:7076', // I've also tried 'http://localhost:7076'
  // I've tried with and without proxy settings, I don't understand proxies very well though
  /*proxy: {
    host: '127.0.0.1',
    port: 7077
  }*/
})

function createAddress(accountIndex) {
  // Ensure accountIndex is a string
  accountIndex = accountIndex + ''
  // Get a new private key
  return rpc.post('/', {
    action: 'deterministic_key',
    index: accountIndex,
    seed: config.walletSeed
  })
    // Add to the local wallet
    .then(function(result){
      return rpc.post('/', {
        action: 'wallet_add',
        key: result.private,
        wallet: config.walletId
      })
    })
    // Return the account address
    .then(function(result){
      return result.account
    })
    .catch(function(err) {
      console.log('Error', err)
    })
}

createAddress(52).then(function(address){
  console.log(address)
})

这里有个错误。

Error { Error: connect ECONNREFUSED 127.0.0.1:7076
    at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1170:14)
  errno: 'ECONNREFUSED',
  code: 'ECONNREFUSED',
  syscall: 'connect',
  address: '127.0.0.1',
  port: 7076,
  config:
   { adapter: [Function: httpAdapter],
     transformRequest: { '0': [Function: transformRequest] },
     transformResponse: { '0': [Function: transformResponse] },
     timeout: 0,
     xsrfCookieName: 'XSRF-TOKEN',
     xsrfHeaderName: 'X-XSRF-TOKEN',
     maxContentLength: -1,
     validateStatus: [Function: validateStatus],
     headers:
      { Accept: 'application/json, text/plain, */*',
        'Content-Type': 'application/json;charset=utf-8',
        'User-Agent': 'axios/0.18.0',
        'Content-Length': 117 },
     method: 'post',
     baseURL: 'http://localhost:7076',
     url: 'http://localhost:7076/',
     data: '{"action":"deterministic_key","index":"52","seed":"***"}' },
  request:
   Writable {
     _writableState:
      WritableState {
        objectMode: false,
        highWaterMark: 16384,
        finalCalled: false,
        needDrain: false,
        ending: false,
        ended: false,
        finished: false,
        destroyed: false,
        decodeStrings: true,
        defaultEncoding: 'utf8',
        length: 0,
        writing: false,
        corked: 0,
        sync: true,
        bufferProcessing: false,
        onwrite: [Function: bound onwrite],
        writecb: null,
        writelen: 0,
        bufferedRequest: null,
        lastBufferedRequest: null,
        pendingcb: 0,
        prefinished: false,
        errorEmitted: false,
        bufferedRequestCount: 0,
        corkedRequestsFree: [Object] },
     writable: true,
     _events:
      { response: [Function: handleResponse],
        error: [Function: handleRequestError] },
     _eventsCount: 2,
     _maxListeners: undefined,
     _options:
      { protocol: 'http:',
        maxRedirects: 21,
        maxBodyLength: 10485760,
        path: '/',
        method: 'post',
        headers: [Object],
        agent: undefined,
        auth: undefined,
        hostname: 'localhost',
        port: '7076',
        nativeProtocols: [Object],
        pathname: '/' },
     _redirectCount: 0,
     _requestBodyLength: 117,
     _requestBodyBuffers: [ [Object] ],
     _onNativeResponse: [Function],
     _currentRequest:
      ClientRequest {
        _events: [Object],
        _eventsCount: 6,
        _maxListeners: undefined,
        output: [],
        outputEncodings: [],
        outputCallbacks: [],
        outputSize: 0,
        writable: true,
        _last: true,
        upgrading: false,
        chunkedEncoding: false,
        shouldKeepAlive: false,
        useChunkedEncodingByDefault: true,
        sendDate: false,
        _removedConnection: false,
        _removedContLen: false,
        _removedTE: false,
        _contentLength: null,
        _hasBody: true,
        _trailer: '',
        finished: false,
        _headerSent: true,
        socket: [Socket],
        connection: [Socket],
        _header: 'POST / HTTP/1.1\r\nAccept: application/json, text/plain, */*\r\nContent-Type: application/json;charset=utf-8\r\nUser-Agent: axios/0.18.0\r\nContent-Length: 117\r\nHost: localhost:7076\r\nConnection: close\r\n\r\n',
        _onPendingData: [Function: noopPendingOutput],
        agent: [Agent],
        socketPath: undefined,
        timeout: undefined,
        method: 'POST',
        path: '/',
        _ended: false,
        res: null,
        aborted: undefined,
        timeoutCb: null,
        upgradeOrConnect: false,
        parser: null,
        maxHeadersCount: null,
        _redirectable: [Circular],
        [Symbol(isCorked)]: false,
        [Symbol(outHeadersKey)]: [Object] },
     _currentUrl: 'http://localhost:7076/' },
  response: undefined }

我觉得我已经尝试了无数的配置变化。我有什么不明白的？