Azure Serverless Cheat Sheet

• Enables you to build applications without managing infrastructure.

Azure Functions

• Enables you to run a small piece of code to do a task.
• A single task is performed for each invocation.
• Supported languages: C#, Java, JavaScript, Python, and PowerShell
• Isolated worker process model for .NET: run functions on .NET 5.0 and later with more control and fewer dependency conflicts.
• Flexible hosting options: Consumption (serverless, pay-per-execution), Premium (always warm), Dedicated (App Service plan), and container deployments (including Azure Container Apps and Kubernetes with KEDA).

• Durable Functions: write stateful, event-driven workflows as code.
• Integrated monitoring with Azure Application Insights.
• You can run your code based on the HTTP requests or schedule when your function runs.
• You are only charged for the time you run your code.

Azure Logic Apps

• Allows you to automate your workflows without writing a single line of code.
• Build your workflow using a logic app designer.
• Components:
  • Workflow helps you create a series of steps for your logic app.
  • Managed connectors allow you to access and work with your data.
  • Trigger is the first step to run your logic app. 
  • Actions are steps that happen after the trigger and perform tasks in the workflow of your logic app.
  • Enterprise Integration Pack allows you to create an automated, scalable enterprise integration workflow.
• Logic App types:
  • Consumption: single workflow, hosted in multitenant environment, pay-per-execution.
  • Standard: multiple workflows, single-tenant environment, supports VNet integration, better performance with built-in connectors.
• Connectors:
  • 1,400+ prebuilt managed connectors for Azure, Microsoft, and third-party services.
  • Built-in connectors run natively on the runtime for faster performance (e.g., Service Bus, Event Hubs, Azure Functions).
• Additional capabilities:
  • Run JavaScript, .NET, C#, or PowerShell code directly in workflows.
  • Integration with Azure Event Grid and Event Hubs for event routing.
  • Supports B2B scenarios with integration accounts (EDI, AS2, EDIFACT, X12, RosettaNet).
  • Hosting options: multitenant, single-tenant, App Service Environment v3, or on-premises with hybrid deployment.

Azure Event Grid 

• A network to route events between applications
• Route custom events to different endpoints.
• Components:
  • Events – The information that happened in the system.
  • Event sources – Where the event comes from.
  • Topics – It provides an endpoint where the publisher sends events.
  • Event subscriptions – Filter the events that are sent to you.
  • Event handlers – The service that will process the event.
• Messaging features:
  • MQTT broker support (v3.1.1 and v5.0): IoT devices can publish/subscribe using MQTT, with wildcard topics and fine-grained access control.
  • Pull delivery mode: applications can connect to read events via HTTP, giving full control over consumption.
  • Push delivery mode: Event Grid sends events to subscribers (webhooks, Azure services).
  • Namespace topics: organize events within a namespace for better management.
  • Advanced filtering: filter events by subject, data fields, and more.
  • Private Link support: access Event Grid securely over private endpoints.
  • Multiple authentication methods: X.509 certificates, Microsoft Entra ID, OAuth 2.0 JWT, custom webhooks.
  • Support for CloudEvents 1.0 specification for interoperability.
  • Custom domain names for HTTP and MQTT endpoints.
• Authentication options include SAS tokens, Microsoft Entra ID, X.509 certificates, OAuth 2.0 JWT, and custom webhooks.

Azure Serverless Cheat Sheet References:

https://docs.microsoft.com/en-us/azure/azure-functions/functions-overview
https://docs.microsoft.com/en-us/azure/logic-apps/logic-apps-overview
https://docs.microsoft.com/en-us/azure/event-grid/overview