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Azure Functions Articles

51 articles

Trigger Azure Functions from Cosmos DB Changes

Azure Functions can react to changes in Cosmos DB, but the magic isn't in the Function itself; it's in a separate, often overlooked, Azure service calle.

3 min read

Estimate Azure Functions Costs Before You Deploy

The most counterintuitive truth about estimating Azure Functions costs is that "serverless" doesn't mean "free" — it means you pay for actual usage, whi.

3 min read

Build Azure Functions Custom Handlers

Azure Functions custom handlers let you run code written in any language, even if it's not directly supported by the Azure Functions runtime.

3 min read

Use Deployment Slots for Zero-Downtime Releases

A deployment slot is a live, runnable copy of your application in Azure App Service that runs alongside your production environment.

1 min read

Debug and Diagnose Azure Functions Issues

Debug and Diagnose Azure Functions Issues — Azure Functions can feel like magic until they don't. When they break, the error messages can be cry.

7 min read

Add Distributed Tracing to Azure Functions

Distributed tracing in Azure Functions isn't just about seeing where your requests went; it's about understanding the emergent behavior of your microser.

4 min read

Deploy Azure Functions as Docker Containers

Deploying Azure Functions as Docker containers unlocks a portable, consistent, and familiar development and deployment experience, allowing you to lever.

3 min read

Build Azure Functions with .NET Isolated Worker

Build Azure Functions with .NET Isolated Worker — The .NET Isolated Worker model for Azure Functions is a game-changer because it decouples your funct.

3 min read

Fan Out Work Across Workers with Durable Functions

Durable Functions orchestrations can execute work in parallel, and the most common way to do this is by using fan-out/fan-in patterns.

3 min read

Build Human Approval Workflows with Durable Functions

Durable Functions, at their core, are stateful workflows that run on Azure, and the most surprising thing about them is that they don't require a dedica.

3 min read

Orchestrate Long-Running Jobs with Durable Functions

Durable Functions are an extension of Azure Functions that allow you to write stateful functions in a serverless compute environment.

3 min read

Handle Event Grid Events in Azure Functions

Azure Functions can process Event Grid events directly without needing a separate queue or other intermediate messaging service.

3 min read

Process Event Hub Streams with Azure Functions

Azure Functions can process Event Hubs streams, but they don't just "listen" for messages; they actively poll Event Hubs partitions for new data, making.

3 min read

Scale Fast with Azure Functions Flex Consumption Plan

Azure Functions Flex Consumption plan lets you scale your event-driven applications to handle massive spikes in traffic without manual intervention, but.

3 min read

Create HTTP-Triggered Azure Functions

Create HTTP-Triggered Azure Functions — practical guide covering azure-functions setup, configuration, and troubleshooting with real-world examples.

2 min read

Make Azure Functions Idempotent

Idempotence in Azure Functions is about ensuring that executing a function multiple times with the same input has the same effect as executing it just o.

3 min read

Restrict Access to Azure Functions by IP

Azure Functions can restrict access using IP address filtering, but it's not as simple as adding a firewall rule; the filtering happens at the Applicati.

2 min read

Configure the Java Runtime for Azure Functions

Java and Azure Functions are a surprisingly potent combination, but the real magic isn't in the code you write, it's in how the Azure Functions host inv.

2 min read

Pull Secrets from Key Vault in Azure Functions

Azure Functions can pull secrets from Azure Key Vault, but the magic isn't in the retrieval itself, it's in how Key Vault integrates transparently with .

2 min read

Develop Azure Functions Locally with Core Tools

You can run Azure Functions locally, and it's a total game-changer for rapid development. Here's a quick look at a simple HTTP-triggered function runnin.

3 min read

Use Managed Identity Bindings in Azure Functions

Azure Functions can authenticate to other Azure services without needing to manage credentials in code, thanks to Managed Identity Bindings.

2 min read

Set Max Instances to Control Azure Functions Scale

Azure Functions can scale out to an extremely large number of instances, potentially running up to 200 instances per function app by default.

2 min read

Write Azure Functions in Node.js and TypeScript

Write Azure Functions in Node.js and TypeScript — Azure Functions in Node.js and TypeScript give you a serverless way to run small pieces of code in r.

2 min read

Generate OpenAPI Specs for Azure Functions

Azure Functions can automatically generate OpenAPI specifications, but it's not a magic bullet; you still need to understand how it's generated to get u.

3 min read

Write to Storage and Services with Output Bindings

The real magic of output bindings in Azure Functions isn't about sending data, it's about how the Functions runtime abstracts away the act of writing en.

2 min read

Handle Poison Messages in Azure Functions Queues

Poison messages aren't a bug; they're a feature designed to prevent infinite loops and resource exhaustion when a message processing fails repeatedly.

3 min read

Write Azure Functions in PowerShell

Azure Functions in PowerShell are a surprisingly powerful way to run event-driven code in Azure, but the most mind-bending part is how they manage state.

3 min read

Scale Azure Functions on the Premium Plan

Azure Functions Premium plan scales out by adding more instances of your function app. Let's look at how this actually happens with a real-world example

3 min read

Lock Down Azure Functions with Private Endpoints

Azure Functions can be surprisingly leaky, and the default public endpoint is often a much bigger security hole than people realize.

2 min read

Build Azure Functions with Python v2 Programming Model

The Azure Functions Python v2 programming model is designed to feel more like a standard Python application, but it introduces a surprising amount of im.

2 min read

Process Queue Messages with Azure Functions

Azure Functions can process messages from queues, but they often process them in batches, which can lead to unexpected behavior if you're not careful ab.

3 min read

Configure Retry Policies in Azure Functions

Azure Functions can retry operations for you, but it's not magic; it's a configurable, deterministic process that often trips people up because the defa.

4 min read

Control How Azure Functions Scale with Triggers

Azure Functions scale automatically based on incoming events, but you can exert significant control over this process using trigger-specific configurati.

3 min read

Process Service Bus Messages with Azure Functions

Azure Functions can process messages from Azure Service Bus queues or topics, acting as a trigger for your serverless code.

3 min read

Add Real-Time Messaging with SignalR Bindings

Add Real-Time Messaging with SignalR Bindings — practical guide covering azure-functions setup, configuration, and troubleshooting with real-world examp...

2 min read

Deploy with Zero Downtime Using Slot Swaps

The most surprising thing about deploying with zero downtime using slot swaps is that the application often runs on both the old and new versions simult.

3 min read

Write Structured Logs from Azure Functions

Write Structured Logs from Azure Functions — practical guide covering azure-functions setup, configuration, and troubleshooting with real-world examples.

3 min read

Schedule Azure Functions with Cron Timers

Schedule Azure Functions with Cron Timers — practical guide covering azure-functions setup, configuration, and troubleshooting with real-world examples.

2 min read

Split Traffic Between Azure Functions Versions

Azure Functions' traffic splitting isn't about sending a percentage of requests to different function versions directly; it's about routing traffic to d.

3 min read

Unit Test Azure Functions with xUnit

Azure Functions can be unit tested without hitting the network or the Azure infrastructure, which is a huge win for speed and cost.

11 min read

Connect Azure Functions to a VNet

Connect Azure Functions to a VNet. Azure Functions can reach resources inside a virtual network, but they don't live there by default.

3 min read

Azure Functions vs Container Apps: Choose the Right Serverless

Azure Functions and Azure Container Apps are both serverless compute options on Azure, but they target different use cases and have distinct architectur.

2 min read

Azure Functions vs Logic Apps: When to Use Each

Azure Functions and Logic Apps are both serverless offerings from Azure, but they solve different problems and excel in different scenarios.

3 min read

Deploy Azure Functions with Zip Deploy in CI/CD

The most surprising thing about deploying Azure Functions with Zip Deploy is that it's fundamentally a file copy operation, not a code deployment in the.

2 min read

Eliminate Cold Starts with Always Ready Instances

Eliminate Cold Starts with Always Ready Instances — practical guide covering azure-functions setup, configuration, and troubleshooting with real-world e...

2 min read

Manage App Settings and Secrets in Azure Functions

Azure Functions can store application settings and secrets in a few different places, but the most common and recommended way is through the Azure porta.

2 min read

Monitor Azure Functions with Application Insights

Azure Functions are designed to be event-driven, but the real magic happens when you can see those events and the code they trigger.

2 min read

Trigger Azure Functions on Blob Storage Events

Azure Functions can be triggered by events in Azure Blob Storage, allowing you to build event-driven architectures where code executes automatically in .

3 min read

Reduce Azure Functions Cold Start Time

The fundamental reason Azure Functions cold starts are a problem is that the platform can't magically make your code instantly available; it has to prov.

3 min read

Azure Functions Consumption vs Premium Plan: Which to Use

The biggest surprise is that the Azure Functions Consumption plan, often touted as "pay-as-you-go," can actually end up costing more than the Premium pl.

4 min read

Fix CORS Issues in Azure Functions

The Azure Functions runtime is failing to allow cross-origin requests because the CORS configuration is either missing, malformed, or overly restrictive.

3 min read
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