The only option at the moment is 'code'.
Optionalredirect_The URL for the authorize response redirect. If provided, this must exactly match one of the comma-separated redirect_uri values in your application settings. To protect yourself from certain forms of man-in-the-middle attacks, the live mode redirect_uri must use a secure HTTPS connection. Defaults to the redirect_uri in your application settings if not provided.
Optionalscoperead_write or read_only, depending on the level of access you need.
Defaults to read_only.
OptionalstateAn arbitrary string value we will pass back to you, useful for CSRF protection.
Optionalstripe_login or register, depending on what type of screen you want your users to see. Only override this to be login if you expect all your users to have Stripe accounts already (e.g., most read-only applications, like analytics dashboards or accounting software). Defaults to login for scope read_only and register for scope read_write.
Optionalalways_Boolean to indicate that the user should always be asked to connect, even if they're already connected. Defaults to false.
Optionalsuggested_Express only An array of capabilities to apply to the connected account.
Optionalstripe_Stripe will use these to prefill details in the account form for new users. Some prefilled fields (e.g., URL or product category) may be automatically hidden from the user's view. Any parameters with invalid values will be silently ignored.
The unique identifier provided to your application, found in your application settings.