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Microsoft Azure Fundamentals

Serverless Computing

Serverless concepts

Abstraction of servers

Event-driven scale


Azure Functions

Azure Logic Apps

Functions vs. Logic Apps

Functions and Logic Apps can both create complex orchestrations. An orchestration is a collection of functions or steps, that are executed to accomplish a complex task. With Azure Functions, you write code to complete each step, with Logic Apps, you use a GUI to define the actions and how they relate to one another.

You can mix and match services when you build an orchestration, calling functions from logic apps and calling logic apps from functions. Here are some common differences between the two.

  Functions Logic Apps
State Normally stateless, but Durable Functions provide state Stateful
Development Code-first (imperative) Designer-first (declarative)
Connectivity Write code for custom bindings from many binding types Large collection of connectors, Enterprise Integration Pack for B2B scenarios, build custom connectors
Actions Each activity is an Azure function; write code for activity functions Large collection of ready-made actions
Monitoring Azure Application Insights Azure portal, Log Analytics
Management REST API, Visual Studio Azure portal, REST API, PowerShell, Visual Studio
Execution context Can run locally or in the cloud Runs only in the cloud.