Hi @messi198310, it sounds like you might need to upload the files in chunks rather than in a single request which wouldn’t work through the HTTP Request node at the moment unfortunately.
However, if all you need is the size of a binary file in bytes, you could read it for example like so (simply replace data with whatever your binary property is called):
Example Workflow
File size returned by the workflow vs dir:
Should chunked uploads be needed, you might be able to write custom code in order to manually split up binary data and then perform as many requests as needed, but I am afraid I don’t have any experience with this and no great pointer as to where to start here. A basic example of how to manually upload a (whole) file in the Function node can be found here:
You might also want to raise support for chunked uploads as a feature request in this case as I imagine this might be useful for quite a few other cases.