I want to build a system where a document is to be signed by the user. It may be the case that user takes 10 days to sign the document or even in minutes things are done.
Using Remote signing : User will receive the mail from third party app, and the validity of that signing link is long like 10-15 days.
Using Embedded signing : User will have to sign the document within minutes. No mail is received from 3rd party app.
I want to have a hybrid kind of system, where our system should send the mail containing the signing link to user and that link should be valid for 10-15 days.
There are workarounds for my use requirements. But I want a robust and proper solution for this.
You want your app to send the email and control the validity time for the link. You also, it appears, want to use embedded signing. All of the above is straight forward with DocuSign. See my prior answer on how to create long lived embedded signing links.
[I work for DocuSign]
Re: embed UI in our app?
You can update your app to iFrame DocuSign's Signing Ceremony, redirect to it, or open a new browser tab for the signing ceremony.
iFraming is not recommended since it does not enable signers to assure themselves that they're using DocuSign. If you do use an iFrame, the DocuSign Signing Ceremony must receive 100% of the width and height to provide the best signing experience (especially on mobiles).
You can brand the DocuSign signing ceremony to include your app's logo and match your app's colors, fonts, etc.