Using Node.js SDK to convert docx to pdf

I try to use the sample code of nodejs to convert word to pdf .But this ‘Error: Authorization failed’
occurred .I have correctly entered the Client Id and Client Secret of the created Application in the dashboard.The following is the code and error message.

const { WordsApi, ConvertDocumentRequest } = require("asposewordscloud");
const fs = require("fs");

const clientId = "0a182d30-ea11-4ca4-855a-xxxxxxxxxxxx";
const secret = "96677b1d6218fb17c3654xxxxxxxxxxxxxx";
const wordsApi = new WordsApi(clientId, secret);


// Convert Word Document to PDF (the output will be saved in Cloud storage)
var fileName = "desol-A.docx";
var request = new ConvertDocumentRequest({
    format: "pdf",
    document: fs.readFileSync(fileName),
});
wordsApi.convertDocument(request).then((result) => {
    fs.writeFile("desol-A.pdf", result.body, (err) => {
        if (err) throw err;
        console.log("Successfully converted");
    });
})


F:\workspace\w2p>node index.js
(node:12848) UnhandledPromiseRejectionWarning: Error: Authorization failed
    at F:\workspace\w2p\node_modules\asposewordscloud\dist\internal\requestHelper.js:140:23
    at Generator.throw (<anonymous>)
    at rejected (F:\workspace\w2p\node_modules\asposewordscloud\dist\internal\requestHelper.js:32:65)
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:12848) 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(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejecti
ons_mode). (rejection id: 1)
(node:12848) [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 c
ode.

@wangxianjie86

Please ensure that you are using the latest version of Aspose.Words Cloud SDK for Node.js and correct credentials(Client ID and Secret). If the issue persists then please share your credentials with us via a private message(click on my user icon and opt the message option with the required information. Kindly remove “RE:” from the title).