Hello,

We are in the process of integrating an integrated signature flow on our website via your API, and we have some questions.

Our project is to allow our customers to sign their contract on our website, without leaving it. They fill out a form that we manage and process in PHP, and when they click on the " signing my contract" button, it should generate a contract from a template that we have set up in our DocuSign account, pre-fill the fields with the elements of our form, and allow the customer to sign their contract, while remaining on our site. If successful, or if there is an error, the customer is redirected to different confirmation pages, still on our site.

Our customers do not have a Docusign account and should not be asked to authenticate themselves.

From this point on, we wonder about the following point:

We have consulted the documentation but we are not sure which type of authentication is suitable for our project: Authorization Code Grant or JWT? The JWT seems to be more adapted because in the case of the Authorization Code Grant it imposes a regular connection of the owner of the application, which is not the desired goal. Is this really the case?

We have a doubt because on your example https://loanco.sampleapps.docusign.com/loan/auto which proposes the scheme we want to implement, it is the Authorization Code Grant which is used.