I am able to CreateContainers, ListContainers, ListBlobs but when I am trying to make a PUT/DELETE request to upload or delete files in the Azure Storage blob but it shows the following error after making the request:

403
This request is not authorized to perform this operation using this permission.
{
  'content-length': '279',
  'content-type': 'application/xml',
  server: 'Windows-Azure-Blob/1.0 Microsoft-HTTPAPI/2.0',
  'x-ms-request-id': '4de6c154-f01e-0051-7ce4-1314ef000000',
  'x-ms-version': '2018-03-28',
  'x-ms-error-code': 'AuthorizationPermissionMismatch',
  date: 'Mon, 08 Mar 2021 06:32:44 GMT',
  connection: 'close'
}

The code for upload/PUT file is:

const request = require("request");
require("dotenv").config();

const account = process.env.ACCOUNT_NAME || "";
const containerName = "demo";
const blobName = "dummyfile1.txt";
const blobContent = "Hello, This will be written in file";
const contentLength = new TextEncoder().encode(blobContent).length;

var strTime = new Date().toUTCString();

const options = {
  url: `https://${account}.blob.core.windows.net/${containerName}/${blobName}`,
  headers: {
    Authorization: "Bearer <BearerToken>",
    "x-ms-date": strTime,
    "x-ms-version": "2018-03-28",
    "x-ms-blob-type": "BlockBlob",
    "Content-Length": contentLength,
    "Content-Type": 'application/text-plain',
  },
  body: blobContent,
};

function callback(error, response, body) {
  console.log(response.statusCode);
  console.log(response.statusMessage);
  console.log(response.headers);
}

request.put(options, callback);

Here I am manually replacing the from the one which I am getting through POSTMAN via:

Also, I have added the permission of Storage Data Contributor to the App:

I have delegated Azure Storage, user_impersonation permission also to the Application.

But still, the same error persists.