Serverless functions
Lambda function URLs vs Azure Functions
Lambda function URLs map to the HTTP trigger in Azure Functions.
Both give a function its own HTTPS endpoint with built-in auth options.
Side-by-side comparison
| Aspect | Amazon Web Services | Microsoft Azure |
|---|---|---|
| Service | Lambda function URLs | Azure Functions |
| Lifecycle | Generally available | The Linux Consumption plan retires Sep 30, 2028 (no new features). The Flex Consumption plan is recommended for new serverless apps. |
| What it is | A dedicated HTTPS endpoint for a function, with IAM (AWS_IAM) or public (NONE) auth, CORS, and response streaming. | Event-driven functions with triggers and input/output bindings. Hosting plans are Flex Consumption, Premium, Dedicated (App Service), Container Apps, and legacy Consumption. |
| Pricing model | No extra charge beyond Lambda requests and duration. | No extra charge beyond the hosting plan's execution charges. |
| Docs | Lambda function URLs docs | Azure Functions docs |
| Pricing page | Lambda function URLs pricing | Azure Functions pricing |
| Exams | DVA-C02 Retiring | AZ-204 Retired |
Key differences
- Auth. Function URLs use AWS_IAM (SigV4) or NONE (public) with resource policies. Azure HTTP triggers use function, host, or admin keys or anonymous access, plus App Service Authentication (Entra ID and other providers).
- Streaming. Function URLs support response streaming. Azure Functions supports HTTP streams in the isolated .NET and Python models (check language support).
- Routing. A function URL maps to one function. Azure function apps host many HTTP functions under one host name with route templates.
Pricing summary
Pricing models only. No prices are quoted because they change by region and over time.
- AWS
- No extra charge beyond Lambda requests and duration. Lambda function URLs pricing →
- Azure
- No extra charge beyond the hosting plan's execution charges. Azure Functions pricing →
Certification exam mapping
| Exam | Provider | Level | Status |
|---|---|---|---|
| AWS Certified Developer – Associate DVA-C02 | AWS | Associate | retiring Being updated to DVA-C03. Registration for DVA-C03 opens Oct 27, 2026. Last day to take DVA-C02 is Nov 30, 2026. |
| Microsoft Certified – Azure Developer Associate AZ-204 | Azure | Associate | retired The certification and renewal assessment are retired (the page doesn't give a date). The closest current developer credential is AI-200 (Azure AI Cloud Developer Associate). That's our reading, not an official mapping. |
Relevance is based on each exam's published scope, not a line-by-line objective match. Check the official study guide.
FAQ
What is the Azure equivalent of Lambda function URLs?
Lambda function URLs map to the HTTP trigger in Azure Functions. Both give a function its own HTTPS endpoint with built-in auth options.
How does pricing compare between Lambda function URLs and Azure Functions?
AWS: No extra charge beyond Lambda requests and duration. Azure: No extra charge beyond the hosting plan's execution charges. Check the official pricing pages for current rates.
Which certification exams cover this topic?
AWS Certified Developer – Associate (DVA-C02) [retiring]; Microsoft Certified – Azure Developer Associate (AZ-204) [retired].