Add file input as base64 string to $record

[NicoP-S]

Like I said in #34 it is not possible to upload files to the api.

Best way would to add multipart/form-data as content-type, because of the overhead of base64 encoding and decoding.

I hope this way (base64 encoded) is also ok.

[airplanenoise]

that's cool - would that work for a pdf -> blob?

[NicoP-S]

@airplanenoise PDF should also work. Would be transfered as a base64 encoded string and must be decoded on the server (Receiver) side

[kennym]

LGTM