django_anysign provides generic SignatureCallbackView

[benoitbryon]

django_anysign.SignatureCallbackView handles callback requests from backend, usually sent by backend when signature was updated (signed, changed, refused, delivered, ...).

Typical methods/attributes are:

• signature and get_signature => property to get signature instance from request
• get_context_data() => signer in context data, signer.signature in context data
• update_signature(status, status_date) => updates signature status (backend's specific status). Not implemented.
• template: signature/signature_callback.html

Not sure about signer property and update_signer method (see also #9), because the callback may be called on events that do not belong to a signer or belong to multiple signers. As examples:

• using DocuSign, callbacks can be sent when document is added. No signer involved
• using DocuSign, when signature is created with "embedded signing", all signers are marked as "sent", i.e. multiple signers involved.