Hello Sir,
We are Bangalore based startup specializing in OpenCart development and communication with different API provider.
I have 5 years of experience in companies like Microsoft and Samsung.
I have gone through the DOBA documentation and we can integrate this API for you for sure with no glitches though we have not integrated DOBA before.
I have worked on SOAP and WSDL before and know each protocol very well.
Please feel free to contact.
Thanks,
Vivek - GKart