
Serverless compute for event-driven applications on Azure
Visit WebsiteWhat is Azure Functions?
Azure Functions (api tools): Serverless compute for event-driven applications on Azure. Azure Functions runs your code in response to events without managing servers. HTTP requests, timer schedules, queue messages, database changes—define what triggers your function, and Azure handles the rest. Write functions in C#, JavaScript, Python, or Java. Pay only when code executes. Scaling happens automatically based on demand. Key capabilities: Serverless compute, Event-driven, Multiple languages, Triggers, Bindings. Azure Functions is paid-only, with most plans including a trial period. Buyers most often compare Azure Functions against Vapor, Cleavr, Northflank.
TL;DR - Azure Functions
- Azure Functions is Microsoft's serverless compute service for event-driven applications
- It runs code in response to triggers without managing infrastructure
- Free tier with 1M executions/month, then pay per execution
Pros & Cons
Pros
- Serverless functions
- Multiple language support
- Good Azure integration
- Consumption-based pricing
- Durable functions
Cons
- Cold starts
- Vendor lock-in
- Debugging complex
- Execution limits
- Local development tricky
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Key Features
Pricing Plans
Free TrialFree Tier
Usage-based pricing
- 1M executions/month
- 400,000 GB-seconds
- Consumption plan
- All features
Consumption
$0.2/per 1M executions
Pay-as-you-go
- $0.000016/GB-sec
- Auto-scaling
- Pay for usage only
- Cold starts possible
Flex Consumption
$0.4/per 1M executions
GA 2025
- Faster cold starts
- VNet integration
- Higher concurrency
- Always-ready option
Premium
Varies
Pre-warmed
- No cold starts
- VNET connectivity
- Unlimited execution
- Dedicated instances
About Azure Functions
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Azure Functions FAQ
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What languages do Azure Functions support?
What triggers Azure Functions?
Source: azure.microsoft.com