[FAQ][High] upload-multiple-files-at-a-time.md: HTTPUpload() sample shows wrong arity; number passed where string expected

[lyzhang0113]

File: _articles/faq/upload-multiple-files-at-a-time.md
Severity: High (arity), Low (type mismatch)

Found via a full FAQ accuracy audit cross-referencing the FAQ set against the API reference docs (_articles/info/api/).

Issue 1 (High)

Claim: DWTObject.HTTPUpload("http://localhost:90/saveUploadedJPG.aspx", onEmptyResponse, onServerReturnedSomething) — a 3-arg call.

Contradicting doc: _articles/info/api/WebTwain_IO.md (lines ~1446-1467) defines only 6- and 7-parameter HTTPUpload() overloads requiring indices, type, and dataFormat. No 3-arg overload exists.

Proposed fix: DWTObject.HTTPUpload(url, [], Dynamsoft.DWT.EnumDWT_ImageType.IT_JPG, Dynamsoft.DWT.EnumDWT_UploadDataFormat.Binary, onEmptyResponse, onServerReturnedSomething).

Issue 2 (Low)

Claim: DWTObject.SetHTTPFormField("UploadedImagesCount", DWTObject.HowManyImagesInBuffer) passes a number.

Contradicting doc: WebTwain_IO.md types SetHTTPFormField(name: string, value: string): boolean — the second parameter is documented as string. HowManyImagesInBuffer is typed as number in WebTwain_Buffer.md. JS coerces this automatically so it works in practice, but it doesn't match the documented signature.

Proposed fix: DWTObject.SetHTTPFormField("UploadedImagesCount", DWTObject.HowManyImagesInBuffer.toString());.

[lyzhang0113]

Issue 1: Needs further input. Why do we need the function convertImage in this sample snippet at all, when we can define the indices and image type directly in HTTPUpload?
Issue 2: Confirmed.

[tony-xlh]

I think the original post wants to upload all the files as JPG in one HTTP request by adding form fields.

HTTPUpload only uploads one file by default. Multiple indices only work for PDF and TIFF.