我正在使用请求承诺将数据获取/发布到API。使用Interval来访问API URL。 间隔设置为30秒。有时它会在请求时出现EBUSY错误。

代码：-

const request         = require("request-promise");

function getToken(username,password,endpoint) {
    return request({
                       url    : endpoint + "/oauth/token",method : "POST",auth   : { user: username,pass: password },headers: { "Content-Type": "application/x-www-form-urlencoded" },form   : { type: "client_credentials" }
                   })
        .then(function (result) {
            return result;
        })
        .catch(function (error) {
            // ... error checks
            console.log(error);
            throw error;
        });
}

错误：-

Error: getaddrinfo EBUSY xxxx.xxxx.com\n    at new RequestError (/home/node_modules/request-promise-core/lib/errors.js:14:15)\n    at Request.plumbing.callback (/home/node_modules/request-promise-core/lib/plumbing.js:87:29)\n    at Request.RP$callback [as _callback] (/home/node_modules/request-promise-core/lib/plumbing.js:46:31)\n    at self.callback (/home/node_modules/request/request.js:185:22)\n    at Request.emit (events.js:203:13)\n    at
at Request.onRequestError (/home/node_modules/request/request.js:881:8)
    at ClientRequest.emit (events.js:203:13)
    at TLSSocket.socketErrorListener (_http_client.js:399:9)
    at TLSSocket.emit (events.js:203:13)
    at emitErrorNT (internal/streams/destroy.js:91:8)
    at emitErrorAndCloseNT (internal/streams/destroy.js:59:3)
    at processTicksAndRejections (internal/process/task_queues.js:77:11)
(node:6571) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block,or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:6571) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future,promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

  

我也正在使用try {} catch（e）{}，但它仍然打破了间隔。

每次停止后，我们都必须在服务器上手动执行它。