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10. Apps Integration Services

Azure Queue Storage​

A place for messages to be stored before something picks it up to use. Simpler than Service Bus, not recommended for critical information.

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Publisher and Receiver - send and receive messages (XML, JSON, Text, etc) via REST Storage Account Queue - endpoint for messages to be published to and recieved - (poll/pull)

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Azure Service Bus​

Enterprise scale messaging service. Used when you want to guarantee a delivery correctly, not duplicated, not out of order. Topics can be used to enhance functionality.

  • FIFO, at most once, at least once guarantees
  • supports sessions, dead lettering, duplicate detection and more
  • maximum message size of 256kb/100mb, 10,000 queues.

Pricing​

Basic Standard - shared capacity - max 256kb message, queues and topics Premium - dedicated - max 1mb message, all of the above plus zone redundancy.

Resources​

Publisher and Receiver - send and receive messages (XML, JSON, Text, etc) via REST Namespace - container for service bus Queue - FIFO delivery queue

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Topics​

Endpoint for message publishing

  • supports ordering, partitioning, etc

Subscription - messages that are duplicated from a topic can go into these different subscriptions.

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Event Grid​

This is about events, not messages. Can include IoT devices

  • basic service provides lightweight delivery of events

Basic

  • publisher subscriber push model

Standard

  • IoT, MQTT support, pull model

Event Grid Topics​

Event Publisher Event Handler Event Grid service Topics - collection of related published events image.png

Event Hubs​

Streams of event data

  • near realtime
  • Supports AMQP, HTTPS, Apache Kafka and more image.png image.png

Components​

Event Hub Namespace Event Hub Partition Consumer group - a view of the hub to see where your events are.

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Azure API Management​

  • API documentation
  • Access to the APIs via API Gateway image.png

Basic v2 - dev test Standard v2 - production, development portal

Management plane Rate limits and quotas, security validation. caching, transformations and self hosted options.

No more v1 :(

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Azure Logic Apps​

Trigger - time based Does something GUI based workflows with connectors for various services

Components​

Logic App Resource Workflow (can save as JSON) Triggers and Actions Connectors

Pricing Models​

Consumption Standard image.png

Case Study​

https://learn.cantrill.io/courses/az-305-microsoft-azure-solutions-architect/lectures/48733866

  • All APIs are exposed to the Internet
  • no caching on the APIs
  • slower responses to negative reviews
  • handled on manual basis

Solution:

  • Turn off backend public access using APIM Standard v2
  • Logic App for feedback to create a SN ticket

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