download Attachment And Write failed nodejs

[xiaolangxyz]

Sample information

1. Sample type: 15.handling-attachments
2. Sample language: node js
3. Sample name: 15.handling-attachments

Describe the bug

I upload an image. The bot saved it. But the image can not open. I think it is not saved correctly
By the way, I'm just running the sample. I didn't change anything.

[jwiley84]

I was able to repro this issue using a PDF, and the v4 emulator

[Zerryth]

Same. Tried saving .jpg and .png files, which attaches to message to the bot, like the OP had done. However when trying to open the newly saved .jpg/.png files, it throws an error.

Here's the one that Microsoft Paint throws:

Should test bot in webchat, as it might be a webchat-related issue

[jwiley84]

Quick step repro:

• Emulator v4 (4.2.1) - Same error on png/jpg, txt files work as expected. Corrupts PDF
• Emulator v3 (3.5.3) - Same error on png/jpg, txt files come through with text replaced with [Object object]
• Webchat via iFrame from Azure - Same error on png/jpg, txt files work as expected
• Facebook Messenger - Same error on png/jpg, txt files work as expected, EXCEPT that the file name had to be hardcoded in

[Zerryth]

Emulator 3.5.36

• can upload and save .txt and .jpg/.png attachments, without bot throwing error
• cannot open saved .jpg/.png. Gives error as shown above, about not liking the file type
• can open .txt file, but the contents of the .txt file are replaced with only [object Object] written, nothing else

Emulator 4.3.0

• cannot save any uploaded attachments.
  

More specifically, contentURL seems to have a pending promise rather than settling to fulfilled/rejected in the attachment, and breaks when trying to call this line in bot.js.

[Zerryth]

Emulator team is aware of the image upload issue and is filed here.

[Zerryth]

Update: issue inside the emulator has been fixed.

For users who had problems simply saving the attachment to disk, you should no longer encounter the issue of uploading your attachment, even if it is an image.

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C# attachments-bot runs without hiccup--saves attachment to AppData/Temp folder, and can open the saved attachment. However when running the node bot, attachment can upload, but when trying to open file type, the error of not being able to open a file of that type still persists.

Even when changing the save location of the node attachments to mimic the C# side and hard-coding save to AppData/Temp folder, attachment saves, but cannot open properly, so it doesn't appear to be a location issue, but perhaps a fs read/write issue