Account Information Service.
Consent is given using the OAuth2 as a pre-step authentication flow described in NextGenPSD2 specifications.
This means you don't have to manage consents using the dedicated endpoints (which are not implemented),
but only to redirect the PSU to our authorisation page (using AIS as OAuth2 scope).
After performing a strong customer authentication, the PSU will be redirected to your redirect URI with an
authorisation code that you can then exchange for an access token.
This access token will let you authenticate at the XS2A interface to request the PSU accounts balances and transactions history.