ECONNREFUSED 에러 질문입니다.

Question

라우터 전부 있고 axios baseUrl = http://localhost:3065 로 했는데 프론트서버 킬때 웹페이지 화면은 나오는데 ECONNREFUSED 에러가 뜨네요. 이 에러의 원인은 무엇인가요? (LOAD_MY_INFO_FAILURE, LOAD_POSTS_FAILURE 액션에서 data undifined error가 나와서 둘다 액션을 error: err.name으로 바꿨습니다. name으로 안하면 data undefined error만 나오더라구요.) 아 그리고 백서버도 켜져있습니다. LOAD_MY_INFO_FAILURE 부분 콘솔 에러입니다. Error: connect ECONNREFUSED 127.0.0.1:3065 at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1146:16) { errno: -4078, code: 'ECONNREFUSED', syscall: 'connect', address: '127.0.0.1', port: 3065, config: { url: '/user', method: 'get', headers: { Accept: 'application/json, text/plain, */*', Cookie: '', 'User-Agent': 'axios/0.21.1' }, baseURL: 'http://localhost:3065', transformRequest: [ [Function: transformRequest] ], transformResponse: [ [Function: transformResponse] ], timeout: 0, withCredentials: true, adapter: [Function: httpAdapter], xsrfCookieName: 'XSRF-TOKEN', xsrfHeaderName: 'X-XSRF-TOKEN', maxContentLength: -1, maxBodyLength: -1, validateStatus: [Function: validateStatus], data: undefined }, 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, afterWriteTickInfo: null, buffered: [], bufferedIndex: 0, allBuffers: true, allNoop: true, pendingcb: 0, prefinished: false, errorEmitted: false, emitClose: true, autoDestroy: true, errored: null, closed: false }, _events: [Object: null prototype] { response: [Function: handleResponse], error: [Function: handleRequestError] }, _eventsCount: 2, _maxListeners: undefined, _options: { maxRedirects: 21, maxBodyLength: 10485760, protocol: 'http:', path: '/user', method: 'GET', headers: [Object], agent: undefined, agents: [Object], auth: undefined, hostname: 'localhost', port: '3065', nativeProtocols: [Object], pathname: '/user' }, _ended: true, _ending: true, _redirectCount: 0, _redirects: [], _requestBodyLength: 0, _requestBodyBuffers: [], _onNativeResponse: [Function (anonymous)], _currentRequest: ClientRequest { _events: [Object: null prototype], _eventsCount: 7, _maxListeners: undefined, outputData: [], outputSize: 0, writable: true, destroyed: false, _last: true, chunkedEncoding: false, shouldKeepAlive: false, _defaultKeepAlive: true, useChunkedEncodingByDefault: false, sendDate: false, _removedConnection: false, _removedContLen: false, _removedTE: false, _contentLength: 0, _hasBody: true, _trailer: '', finished: true, _headerSent: true, socket: [Socket], _header: 'GET /user HTTP/1.1 ' + 'Accept: application/json, text/plain, */* ' + 'Cookie: ' + 'User-Agent: axios/0.21.1 ' + 'Host: localhost:3065 ' + 'Connection: close ' + ' ', _keepAliveTimeout: 0, _onPendingData: [Function: noopPendingOutput], agent: [Agent], socketPath: undefined, method: 'GET', maxHeaderSize: undefined, insecureHTTPParser: undefined, path: '/user', _ended: false, res: null, aborted: false, timeoutCb: null, upgradeOrConnect: false, parser: null, maxHeadersCount: null, reusedSocket: false, host: 'localhost', protocol: 'http:', _redirectable: [Circular *1], [Symbol(kCapture)]: false, [Symbol(kNeedDrain)]: false, [Symbol(corked)]: 0, [Symbol(kOutHeaders)]: [Object: null prototype] }, _currentUrl: 'http://localhost:3065/user', [Symbol(kCapture)]: false }, response: undefined, isAxiosError: true, toJSON: [Function: toJSON] } { type: 'LOAD_MY_INFO_FAILURE', error: 'Error' } 그리고 이건 LOAD_POSTS_FAILURE 부분 콘솔 에러입니다. Error: connect ECONNREFUSED 127.0.0.1:3065 at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1146:16) { errno: -4078, code: 'ECONNREFUSED', syscall: 'connect', address: '127.0.0.1', port: 3065, config: { url: '/posts?lastId=0', method: 'get', headers: { Accept: 'application/json, text/plain, */*', Cookie: '', 'User-Agent': 'axios/0.21.1' }, baseURL: 'http://localhost:3065', transformRequest: [ [Function: transformRequest] ], transformResponse: [ [Function: transformResponse] ], timeout: 0, withCredentials: true, adapter: [Function: httpAdapter], xsrfCookieName: 'XSRF-TOKEN', xsrfHeaderName: 'X-XSRF-TOKEN', maxContentLength: -1, maxBodyLength: -1, validateStatus: [Function: validateStatus], data: undefined }, 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, afterWriteTickInfo: null, buffered: [], bufferedIndex: 0, allBuffers: true, allNoop: true, pendingcb: 0, prefinished: false, errorEmitted: false, emitClose: true, autoDestroy: true, errored: null, closed: false }, _events: [Object: null prototype] { response: [Function: handleResponse], error: [Function: handleRequestError] }, _eventsCount: 2, _maxListeners: undefined, _options: { maxRedirects: 21, maxBodyLength: 10485760, protocol: 'http:', path: '/posts?lastId=0', method: 'GET', headers: [Object], agent: undefined, agents: [Object], auth: undefined, hostname: 'localhost', port: '3065', nativeProtocols: [Object], pathname: '/posts', search: '?lastId=0' }, _ended: true, _ending: true, _redirectCount: 0, _redirects: [], _requestBodyLength: 0, _requestBodyBuffers: [], _onNativeResponse: [Function (anonymous)], _currentRequest: ClientRequest { _events: [Object: null prototype], _eventsCount: 7, _maxListeners: undefined, outputData: [], outputSize: 0, writable: true, destroyed: false, _last: true, chunkedEncoding: false, shouldKeepAlive: false, _defaultKeepAlive: true, useChunkedEncodingByDefault: false, sendDate: false, _removedConnection: false, _removedContLen: false, _removedTE: false, _contentLength: 0, _hasBody: true, _trailer: '', finished: true, _headerSent: true, socket: [Socket], _header: 'GET /posts?lastId=0 HTTP/1.1 ' + 'Accept: application/json, text/plain, */* ' + 'Cookie: ' + 'User-Agent: axios/0.21.1 ' + 'Host: localhost:3065 ' + 'Connection: close ' + ' ', _keepAliveTimeout: 0, _onPendingData: [Function: noopPendingOutput], agent: [Agent], socketPath: undefined, method: 'GET', maxHeaderSize: undefined, insecureHTTPParser: undefined, path: '/posts?lastId=0', _ended: false, res: null, aborted: false, timeoutCb: null, upgradeOrConnect: false, parser: null, maxHeadersCount: null, reusedSocket: false, host: 'localhost', protocol: 'http:', _redirectable: [Circular *1], [Symbol(kCapture)]: false, [Symbol(kNeedDrain)]: false, [Symbol(corked)]: 0, [Symbol(kOutHeaders)]: [Object: null prototype] }, _currentUrl: 'http://localhost:3065/posts?lastId=0', [Symbol(kCapture)]: false }, response: undefined, isAxiosError: true, toJSON: [Function: toJSON] } { type: 'LOAD_POSTS_FAILURE', error: 'Error' }

제로초(조현영) · Answer

백엔드 서버가 꺼져있는 것으로밖에 보이지 않습니다.