This endpoint handles re-authorisation flow from the Provider API. When a users account has lost its credentials to the provider.
Banking Service then calls into the provider’s GET /authrefresh endpoint. When Banking Service calls the /authrefresh endpoint, the connector should perform any neccessary tasks to re-authenticate the user. You may ask the user to enter their internet banking credentials and perform multi-factor authentication.
The following query parameters are sent within the GET auth request:
||The Sage ID of the bank that the user of the Banking service has chosen to onboard with.|
||UUID of the authorisation session within the Banking Service. Following an authorisation this ID is used in conjunction with Patch Auth to inform the Banking Service of authorised accounts. It can be used to optionally validate against the authorisation id received on the web hook notification.|
||URl to redirect to upon success or failure. The value of the State query parameter should be appended to this when redirecting.|
||UUID to be appended to redirect_uri when redirecting.|
||The providers unique identifier for the bank account.|
You should respond to this request with the HTML for your re-authorisation proccess.
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Securing this endpoint
Before recieving a request to /authrefresh, the Banking Service will POST to your notifications endpoint with resource type ‘authorisation’ to advise you that the re-authorisation flow has started. This request will also contain an AuthorisationID which you can use to secure any requests into /authrefresh.
You can do this by comparing the AuthorisationID recieved through the notification body to the AuthorisationID recieved within the query paramters to /authrefresh. If the authorisation identifier values do not match, the request is not secure and should not be processed.
The lifetime of this authorisation session is around 10 minutes and can only be used one time.
This AuthorisationID would then be used when sending your PATCH request to the authorisations endpoint through the Provider API.