Firewall and Messaging With Service Bus and REST (HTML5 Mobile Application)

Hi,

I hope I can explain what I am trying to accomplish. Client data is on a local network, behind the firewall, on a ever which runs a MySQL database. Our mobile application which will be a web based html5+javascript mobile application like DevExtreme for example has to be able to access this data somehow. My idea was to use the Azure service bus.

MySQL Database <--- WCF Service --> || FIREWALL || ---> Azure Service Bus <--- Mobile App (using REST)

Am I looking at it correctly?

I cannot find any good samples how to do Azure Service Bus with relays and contacting the service bus using JavaScript calls with REST.

Any help would be appreciated.

Thanks.