# How does AWS Lambda work?

How does AWS Lambda work?

##### Post Metadata
- Posted at: almost 4 years ago
- Author title: Pinned by G2 as a common question



## Comments
### Comment 1

Lambda is a Serverless service, Behind the scene, there are containers running, When you trigger a lambda a container spins up and your code is executed. The time taken by a container to spin up is the Cold Start.
A container will last long till 15mins and then it's shut down if no concurrent triggers happening.

##### Comment Metadata
- Posted at: about 3 years ago
- Author title: Serverless Developer at Serverless Guru | AWS Certified | AWS Community Builder
- Net upvotes: 1


### Comment 2

AWS Lambda works by running your code automatically in response to events — without you managing any servers. When something triggers your function (like an API call, a file upload, or a scheduled event), Lambda spins up a secure, isolated environment, runs your code, and then shuts it down when it’s done. AWS handles all the scaling, patching, and infrastructure behind the scenes.

##### Comment Metadata
- Posted at: 4 months ago
- Author title: Enterprise Architect | Cloud Transformation Leader | Driving Multi-Cloud Strategy, Solutions | DevSecOps Excellence | Innovating Resilient Infrastructure at Scale




## Related Product
[AWS Lambda](https://www.g2.com/products/aws-lambda/reviews)

## Related Category
[Cloud Platform as a Service (PaaS)](https://www.g2.com/categories/cloud-platform-as-a-service-paas)

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