WebVI Upload PDF

[Mike1979]

I am trying to transfer a pdf from a web vi to the server (the server will be running labview web services). The user will select the pdf of interest from their PC to upload to the server. Has anyone had any luck transfering a binary file from a web vi

[ANSujay]

Hi Mike,

Could you try this library/example and see if it works for your use case? There's some discussion regarding this library in this thread.

[Mike1979]

Hi Sujay,

I tried that, it works well with ascii files but I cant get it to work with binary files like pdfs.

Michael

[ANSujay]

I was just looking at the code in the UploadFileToWebVI.js, and it looks like it's returning the file content in the form of text (Line 70). I'm guessing that might be the cause of the issue. One idea I can think of is to return response.blob() instead of response.text().

[Mike1979]

Thanks for the suggestion. I have tried changing to blob from text but unfortunately when I run it the error message I get is "An unhandled error occured on the LabVIEW diagram with code 44306 at <APPEND>"

[Mike1979]

I found a link that shows how to get it working in NXG:

https://github.com/rajsite/webvi-experiments/tree/master/File

[MilanR · Accepted solution]

Hi Mike1979,

I was just cleaning up that example a few days ago to share on here. For future users I posted the example on the NI Example Code forum at the following URL: https://forums.ni.com/t5/Example-Code/File-for-WebVI/ta-p/4129229

That would be a good place to download the library for File handling in WebVIs and to ask questions, etc.

[Mike1979]

Hi Milan

Thanks for that. It looks great!

Michael