Authenticate and authorize the user with the given installationId against AHOI using OAuth 2.0 protocol. The returned authorization token called 'banking token' is needed to access the AHOI endpoints e.g. to get transactions. see: https://banking-sandbox.starfinanz.de/ahoi/docs/cookbook/index.html#authentication
AhoiBankingTokenService
Authenticate and authorize the user with the given installationId against AHOI using OAuth 2.0 protocol. The returned authorization token called 'banking token' is needed to access the AHOI endpoints e.g. to get transactions.
see: https://banking-sandbox.starfinanz.de/ahoi/docs/cookbook/index.html#authentication
AhoiBankingTokenService