Prerequisites
You should have
- an user-account enabled for api access & order management access
- an api-client
Generating a PDF
Generating a PDF-Document within Hublify is somewhat a standard functionality. It rather depends on where / how what you want to do with it.
.... download
Generating an Invoice-PDF-Document is actually a standard Hublify CMS's "Template Rendering"-function, just called with a dedicated "Invoice Template" and a designated "inv_id"-parameter (filter-value to let the template retrieve all its needed invoice-data).
To generate and download a generated Invoice-PDF-File, please details for that in the section: Generate a PDF Document
... send by email
Sending an Invoice-Email with an optional PDF-Attachment is actually a standard Hublify Message Builder "send"-function, just called with a dedicated "Invoice Message Template" and a designated "inv_id"-parameter (filter-value to let the template retrieve all its needed invoice-data).
If you want to send an email with invoice-data and optional (PDF-) attachment, please see the section: Email Versand