我有一个在我的计算机上本地运行的加密货币 (Nano) Node 。它有一个 RPC API，我已经测试过我可以使用 curl 成功地调用它。例如
curl -d '{ "action": "account_balance", "account": "xrb_1aaprwcu9fac1tw3wesud5txb1zuiroti5xfr19bwozitjnnmbcbwpr1w95f"}' localhost:7076
但是我试图在 Node 脚本中做同样的事情并不断得到 ECONNREFUSED
这是我的 Node 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)
})
这是错误。
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种配置变体。我没有得到什么？
最佳答案
这是 4 个月后，但我一直在努力弄清楚同样的事情。
尝试像这样更改您的实例配置:
const rpc = axios.create({
baseURL: 'localhost:7076',
proxy: false
})
我找不到解决方案，所以我最终挖掘了 axios 的代码。
我在/lib/adapters/http.js 的第 89 行找到了这个:
var proxy = config.proxy;
if (!proxy && proxy !== false) {
var proxyEnv = protocol.slice(0, -1) + '_proxy';
var proxyUrl = process.env[proxyEnv] || process.env[proxyEnv.toUpperCase()];
if (proxyUrl) {
var parsedProxyUrl = url.parse(proxyUrl);
proxy = {
host: parsedProxyUrl.hostname,
port: parsedProxyUrl.port
};
if (parsedProxyUrl.auth) {
var proxyUrlAuth = parsedProxyUrl.auth.split(':');
proxy.auth = {
username: proxyUrlAuth[0],
password: proxyUrlAuth[1]
};
}
}
}
if (proxy) {
options.hostname = proxy.host;
options.host = proxy.host;
options.headers.host = parsed.hostname + (parsed.port ? ':' + parsed.port : '');
options.port = proxy.port;
options.path = protocol + '//' + parsed.hostname + (parsed.port ? ':' + parsed.port : '') + options.path;...
我读它的方式是，如果您的配置中没有代理条目，或者如果您的代理条目不是 false( bool 值)。然后它使 var 'proxy' 等于它的默认代理。所以当它到达第 110 行时......
if (proxy) {...
...有一个代理，(它刚刚创建的默认值)并且它将使用它。
当我将 proxy: false 添加到我的配置时，axios 按预期工作。
关于Node.js/Axios 无法连接到本地主机，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/49529201/