Start the authorisation process for a consent

Create an authorisation sub-resource and start the authorisation process of a consent.
The message might in addition transmit authentication and authorisation related data.

his method is iterated n times for a n times SCA authorisation in a
corporate context, each creating an own authorisation sub-endpoint for
the corresponding PSU authorising the consent.

The ASPSP might make the usage of this access method unnecessary,
since the related authorisation resource will be automatically created by
the ASPSP after the submission of the consent data with the first POST consents call.

The start authorisation process is a process which is needed for creating a new authorisation
or cancellation sub-resource.

This applies in the following scenarios:

• The ASPSP has indicated with an 'startAuthorisation' hyperlink in the preceding Payment
  initiation response that an explicit start of the authorisation process is needed by the TPP.
  The 'startAuthorisation' hyperlink can transport more information about data which needs to be
  uploaded by using the extended forms:
  • 'startAuthorisationWithPsuIdentfication',
  • 'startAuthorisationWithPsuAuthentication'
  • 'startAuthorisationWithEncryptedPsuAuthentication'
  • 'startAuthorisationWithAuthentciationMethodSelection'
• The related payment initiation cannot yet be executed since a multilevel SCA is mandated.
• The ASPSP has indicated with an 'startAuthorisation' hyperlink in the preceding
  payment cancellation response that an explicit start of the authorisation process is needed by the TPP.
  The 'startAuthorisation' hyperlink can transport more information about data which needs to be uploaded
  by using the extended forms as indicated above.
• The related payment cancellation request cannot be applied yet since a multilevel SCA is mandate for
  executing the cancellation.
• The signing basket needs to be authorised yet.