Use drag and drop in website, if this doesnt work you can try figuring out how you can do it trough requests.
How to do content-lenght ?
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@BerkeT said in How to do content-lenght ?:
How can i get content-lenght?
Your question is not completely clear.
You need data before sending or data from the server.
If the data is from the server:"Receive heading" => "Get request"

Returned data

Data in the BAS variable

Keep in mind that:
If the request was forwarded, only the headers for the last redirect will be received. If you want to get headers for a request in the middle of the chain, you need to disable the 'Follow redirects' option for the 'GET' or 'POST' actions and perform redirects yourself.