I am developing a service provider mobile app in react-native that uses Telr payment gateway for handling payments through cards. I followed Mobile API Integration Guide and successfully integrated in my app . Till now I am able to make initial transaction with any of the transaction types provided by Telr in Mobile API. Initially I make 1.00 AED transaction using transaction type of sale and transaction class of paypage . This is the minimum amount of transaction that we have to make when adding card in app. After successful initial transaction I get trans_ref(transaction reference) in response which I can use for making further transactions. All required details, such as card number and expiry date, will be retrieved from the transaction reference and I don't have to provide any card details again.
After this when I've to make another transaction using the same card I've to provide previous trans_ref in my transaction request and use transaction type of sale with transaction class of cont. But I want to use transaction type of auth because of my apps business logic. Basically, I am developing a service provider app and when customer book or schedule any service using card, we need to hold the total bill amount until the service is finished and after successfully completion of service we have to transfer the actual amount from customer account to service providers account.
When I use transaction type of auth with transaction class of cont I get error message of Invalid transaction type, but when I use transaction type of sale with transaction class of cont everything works fine. I want to confirm that can we use transaction type of auth with cont transaction class or not?
