What is Serverless (AWS Lambda, Azure Functions, GCP Cloud Functions)

In this article, we will use AWS Lambda as a main example:

If this is what you are looking for, then you are coming to the right place:

Run code on distributed machines, in a safe isolated way

Consume only the memory required by our code

Spend all of our CPU time on our code

Make scaling across regions trivial

Start running code fast (time to market)

Quick deployment and updates

No VMS, No Containers

Implicit high availability

What comes with Lambda:

API Gateway (Not 100% of the time, you can customize to use ALB instead of API Gateway, but it is not as common). So what is API Gateway?

• Acts as the ‘front door’ to the application
• Handles authorization and access control
• Exposes Lambda functions to your front-end application code
• Billed for API calls

Differences between API Gateway vs ALB

Issue that comes with…