v4.0.1 addFileAttachment not sending data in correct format

[Scomodev]

What is the issue?

When adding a file attachment (csv) with v4.0.1, the file is saved to the sheet without correctly parsing characters such as /r/n and is treated as a string. This is due to content-type header being set to application/json as default.

Steps to Reproduce

CODE

var client = require('smartsheet');

var smartsheet = client.createClient({
  accessToken: 'YOUR_ACCESS_TOKEN',
  logLevel: 'info'
});

const myCsvString = `col1,col2,col3
1,2,3
4,5,6`

let options = {}
options.sheetId = YOUR_SHEET_ID
options.fileName = "Test1.csv"
options.fileStream = myCsvString;
options.fileSize = options.fileStream.length;

smartsheet.sheets.addFileAttachment(options);

V4.0.1 Outcome

File downloaded from sheet after using addFileAttachment:
Test1 (1).csv

V3.1.4 Outcome

File downloaded from sheet after using addFileAttachment:
Test1 (2).csv

Potential Cause

smartsheet-javascript-sdk/lib/utils/httpRequestor.js

Line 35 in e4260e2

'Content-Type': options.contentType || 'application/json',

Hard coding this value to application/octet-stream produced the correct results on par with V3.1.4.

[Scomodev]

Fixed in release v4.0.2