You can't invoke the print dialog you know from the application via the API — the API is an interface without a user interface. What you can do, however, is have the print output itself generated.
Print report as PDF
Just add the .pdf extension to the document address:
GET /c/{firma}/faktura-vydana/123.pdf
GET /c/{firma}/faktura-vydana/123.pdf?report-name=faktura
Without a parameter, the default report of the record type is used. The specific report is selected by report-name; the list of available reports is returned by the address /c/{firma}/{evidence}/reports.xml, and the parameter should contain the value from the reportId element.
⚠️ A report name that isn't in the list results in the response 500 and the message Report '…' can't be found — not an empty PDF. Always take the value from the list of reports.
Other options
The output can also be obtained as XLSX — see Exporting print reports (PDF / XLSX).
A document can be sent directly by email with a PDF attachment via
/odeslani-dokladu, see Sending by email.The PDF can be digitally signed using the
report-sign=trueparameter, see Generating a PDF with a digital signature.