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Discover the solution to the issue of uploading files to Dropbox using VBA, where the uploaded files show a tiny size and cannot be opened.
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This video is based on the question https://stackoverflow.com/q/68279552/ asked by the user 'Brad' ( https://stackoverflow.com/u/5005385/ ) and on the answer https://stackoverflow.com/a/68293351/ provided by the user 'Tim Williams' ( https://stackoverflow.com/u/478884/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Fixing the Tiny File Size Problem When Uploading to Dropbox via VBA

Uploading files to cloud storage services like Dropbox can be an essential task when working remotely or handling documents collaboratively. However, some users encounter frustrating issues during this process. One such problem is having a file uploaded with a tiny file size, often making it unreadable or completely empty. In this post, we will explore why this happens and how to resolve the issue efficiently using VBA scripting in Excel.

The Problem: Tiny File Size in Uploads

You've created a .docx document with a VBA function that uploads the file to Dropbox. As you might have experienced, the file uploads successfully but appears to be only 2 bytes in size. Consequently, you cannot open the file, leading to confusion and concerns about what went wrong in your script.

But why does this happen? The main culprit lies in the way the Content-length is set in the HTTP request when uploading the file. Let's break down the solution, which involves adjusting your VBA code slightly.

The Solution: Adjusting the Content-length Header

To ensure the file uploads correctly and retains its full size, you need to make sure that the Content-length header reflects the actual file size. This value informs Dropbox how much data it should expect to receive. Here’s how you can implement this change in your VBA code:

Step-by-Step Code Revision

Set Up Your Variables: Ensure you have the correct file path and filename defined in your code.

[[See Video to Reveal this Text or Code Snippet]]

Modify the Content-length Header: Instead of setting it to Len(Result) (which is not the correct size), replace it with the FileLen function to get the size of the file being uploaded.

Here's how your modified code should look:

[[See Video to Reveal this Text or Code Snippet]]

Send the File Content: Ensure you send the actual file content read from the byte array function you've written without any modifications.

Here’s the complete revised version of your dropboxUpload function with the necessary changes:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By making these adjustments to your code, you can successfully upload files to Dropbox without running into the problem of a tiny file size. Understanding how the Content-length header works in HTTP requests will not only resolve this issue but will also enhance your coding skills for future projects. If you encounter further complications, revisiting the parameters you supply to the API is always a good strategy.

Now that you're equipped with the right knowledge, feel free to test the modified script and enjoy seamless file uploads to Dropbox!