1. Amit R Bhatia / Puneeth Nayak
Escalation Engineer, Microsoft
Integration made easy with Azure Service Bus/APIM

2. Integrate legacy system
Publish APIs hosted on-premise to partners
Automated process to extract the text from images and store to durable storage
Ensuring Scalability, Durability, Reliability

3. Users of today

4. What is Service Bus?
Service Bus provides a multi-tenant service for connecting applications through the cloud.
Four different communication mechanisms
Relay
Queue
Topic
Event Hub
Relay – Hybrid application, Expose services/APIs behind Firewall & NAT over internet
Queue – Brokered messaging, durability with minimal latency and reliable delivery
Topic – Brokered messaging, pub – sub communication model

5. ServiceBus Architecture
Messaging Broker
Partition 4
Entity ZZ
Messaging Store
Partition 1
Gateway
Entity D
Entity E
Partition 2
Entity C
Gateway Store
Entity A
Entity B
Partition 3
Entity XX

6. Relay vs. Message Broker
The Relay routes messages ‘straight through’ with feedback path and network backpressure into sender S R
Route
AuthN/Z
Backpressure Feedback
Relay
Query Filter
Pull
Broker
Brokers hold messages for retrieval and querying

7. SB Brokered Message Communication - Queue
Producer1 M2 M1
Consumer1
Queue (no Session) M4 M3 M2 M1
Consumer2 M3 M4
Producer2
Producer1 M4
Grp1 M1
Consumer1
Queue (Session support) M4
Grp1 M3
Grp2 M2 M1
Consumer2 M3
Grp2 M2
Producer2

8. SB Brokered Message Communication - Topic
Consumer1
Topic 1
Producer1 (M2, M4..)
Consumer2
Subscription1 M3 M4
Filter=true M4 M3 M2 M1
Subscription2 M2 M1
Filter=true
Producer2 (M1, M3..)
Consumer1 M3 M4
Consumer2

9. ServiceBus Relay Message Communication
Control Message with client location (directIP) 4
Gateway
Gateway
Gateway 3
Client Connects
To Servicebus 1
Server Connects
To Servicebus
OneWay Control Channel-Port 9351 2
Create Listener
Messages are
streamed 6 3
Relay lookup
Gateway store 2
Server
Redirected
to Gateway – Port 9351 5
Server rendezvous
with client on direct IP -Port 9351
Azure VIP/LB
Control Message
to service
with DirectIP of
client 4
Enterprise
WCF Service
WebHTTP Binding
(uses TCP transport for listening)
HTTP / REST Access (WebHttp Bindings) – Port 80/443

10. SB Brokered Message Communication

11. API Management How do you engage with developers?
How do you reduce TTFSC?
How do you enforce your business policies?
How do you make your legacy API modern?
How do you understand their behavior?
How do you protect your core business systems?
API Management

12. Azure API Management Facade Middleware Monitoring Developer
API consumers
AZURE API MANAGEMENT
Facade
decouple
modernize
optimize
...
Middleware
secure
protect
cache
...
Monitoring
usage
health
monetization
...
Developer
discover
document
on-board
...
APIs on Azure
Azure APIs
On-prem APIs
3rd party APIs

13. Azure API Management Architecture
DEVELOPER PORTAL
APP DEVELOPERS
PROXY
APPS / Consumers
BACKEND
SERVICES
PUBLISHER PORTAL
API PUBLISHERS
Hosted anywhere.
Developed using any technology.

14. = Azure Active Directory = Azure VNet
Browser Clients
Mobile Devices
= Azure Service Bus
= Azure Active Directory
= Azure VNet
= Azure API Management
= Azure Batch
= Azure Storage
= Azure SQL DB
= Azure Search
= Azure Worker Role

15. Solution in action
Demo…

16. Questions?

17. Thank you!