Logic App: Upload file to sharepoint from HTTP

Question

I develop a logic app which should download a file from a remote location and store them in Share Point.

All files are png or gif files.

On the share point connector - upload file, I'm using binary(body('DOWNLOAD')) as input. However, the images are corrupt at Sharepoint.

Looked deeper it at, Logic App tries to parse the image as UTF-8 string which breaks the image.

Looking at hex level, the png looks different. test1x1.bad.png is the result at Sharepoint, test1x1.png is the original one.

$ xxd test1x1.bad.png | head -n 3
00000000: efbf bd50 4e47 0d0a 1a0a 0000 000d 4948  ...PNG........IH
00000010: 4452 0000 00ef bfbd 0000 00ef bfbd 0803  DR..............
00000020: 0000 00ef bfbd efbf bdef bfbd efbf bd00  ................
$ xxd test1x1.png | head -n 3
00000000: 8950 4e47 0d0a 1a0a 0000 000d 4948 4452  .PNG........IHDR
00000010: 0000 0080 0000 0080 0803 0000 00f4 e091  ................
00000020: f900 0002 7350 4c54 45ff ffff 3333 3333  ....sPLTE...3333

How I can avoid that Logic App parse the body as UTF-8 String?

I also tried body('DOWNLOAD') and base64ToBinary(body('DOWNLOAD')['$content']), but there is no difference. body('DOWNLOAD')['$content'] returns a base64 value of the image.

Where are you downloading the file from - SharePoint, SFTP, blob storage? What connector are you using to download the file? — 10p
– 10p, Commented Apr 8, 2024 at 18:08
Just upload it as it is from being downloaded. I doubt (could be wrong) that you’ll need to do any sort of conversion to binary. — Skin
– Skin, Commented Apr 8, 2024 at 20:14
@10p public http endpoint. I'm using the native http connector (learn.microsoft.com/en-us/azure/connectors/…) — jkroepke
– jkroepke, Commented Apr 8, 2024 at 20:18
@Skin Thanks for your comment. If it would work, I won't create a question here. Logic App modify the content, without asking for it. — jkroepke
– jkroepke, Commented Apr 8, 2024 at 20:18
Show us the response from the DOWNLOAD step then. Can you share the URL of the site you’re downloading the image from or is it not public? — Skin
– Skin, Commented Apr 8, 2024 at 20:20

10p · Accepted Answer · 2024-04-08 22:06:08Z

0

body('DOWNLOAD') should work absolutely fine. Proof:

Downloading a Google logo from https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png -

Saving it to SharePoint:

Result:

edited Apr 8, 2024 at 22:06

answered Apr 8, 2024 at 21:59

10p

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