c# make http call to service on premise (behind firewall) using Azure Service Bus

Question

I have a REST service on premise behind firewall, etc. The service is not exposed to the internet. I need to connect securely to that service from the internet.

I am wondering if Azure Service Bus can pass a HTTP Request to a service and return the HTTP Response?

Something like in this horible image bellow.

WCF Service Bus Client Service installed on premise
Server running in Azure

The server in Azure can issue HTTP request to custom url in premise like: http://intranet.domain.com by using Service Bus Relay.

Is this scenario possible?

alwayslearning · Accepted Answer · 2016-12-03T10:10:16.850

1

You can use Hybrid connections which are a feature of Azure BizTalk Services. This lets your Azure Web or Mobile App access any on-premise resource that uses a static TCP port, such as SQL Server, HTTP Web APIs etc.

You need to install a listener agent on-premise that can connect to the machine that is running the REST service and the communication happens over a secure connection between the on-premise service and the Azure web app.

edited Dec 03 '16 at 10:10

answered Dec 03 '16 at 09:48

alwayslearning

4,493
6
35
47

Didn't knew about this. Does it uses same principle as service bus? I mean the service bus creates a TCP connection therefore you don't need to open ports, etc so will just work. – user2818430 Dec 03 '16 at 09:56
1

Yes. This needs outbound TCP connectivity without having to open any ports. – alwayslearning Dec 03 '16 at 09:57
one more question: is there a way to handle the whole thing dynamically/programmatically? – user2818430 Dec 03 '16 at 10:51
there is a REST API to set it up or you can also use powershell https://msdn.microsoft.com/library/azure/dn232347.aspx – alwayslearning Dec 03 '16 at 11:35

c# make http call to service on premise (behind firewall) using Azure Service Bus

1 Answers1