Difference between IHostedService and Azure Functions?

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Anubhav Sharma · Answer

IHostedService vs Azure Functions IHostedService Azure Functions Runs inside an ASP.NET Core application Serverless cloud-based execution model Requires your app/server to be running Fully managed by Azure Used for background tasks (e.g., queue processing, timers) Used for event-driven tasks (HTTP, Timer, Queue, Blob, etc.) You manage hosting, scaling, deployment Azure handles scaling automatically Best for internal background jobs in web apps Best for scalable cloud-based micro tasks When to Use Use IHostedService when: You already have an ASP.NET Core appYou need background processing inside the same appYou want full control over execution Use Azure Functions when: You want serverless architectureYou need automatic scalingYou build event-driven or microservice-style workloadsYou don’t want to manage infrastructure Simple Summary IHostedService = Background worker inside your applicationAzure Functions = Serverless, event-driven cloud function managed by Azure

IHostedService	Azure Functions
Runs inside an ASP.NET Core application	Serverless cloud-based execution model
Requires your app/server to be running	Fully managed by Azure
Used for background tasks (e.g., queue processing, timers)	Used for event-driven tasks (HTTP, Timer, Queue, Blob, etc.)
You manage hosting, scaling, deployment	Azure handles scaling automatically
Best for internal background jobs in web apps	Best for scalable cloud-based micro tasks

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Difference between IHostedService and Azure Functions?

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IHostedService vs Azure Functions

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