Don't know how to use a CSV file in a HTTP request

Hey all,

I’m a beginner with but I like it so much.
I’m trying to use Lucca’s API to import my leaves.
The only request available for that is “Create absences in batch from a CSV file”.

I tried the CSV module, but I need to use a CSV with semi-columns separators, and I’m not sure it will work because I need to send a file name as a parameter.
I tried the Texte Parser module to create my own format with semi-columns, but it’s still not a file I can send as a parameter.

What would be your advice?

Thanks a lot