Architecture and Cost of Simple Amazon Web Services Serverless Web Application

Introduction

This spring, I sat in a lockdown in the Bahamas, without the right to go ashore, and, fighting boredom, decided to see what kind of beast Amazon Web Services was, and yes, I was gone. It happened, as they say, love at first sight. One of the technologies that got me drunk as well as Bahamian rum was serverless computing.

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• AWS S3;
• AWS Cognito User Pool;
• API API Gateway Lambda Function;
• NoSQL DynamoDB.

AWS S3

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Cognito User Pool

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API Gateway Lambda Function

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NoSQL DynamoDB

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• Cogito User Pool ;
• API Gateway, ;
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S 3

• – 5 Gb.
• – $0,02 Gb .
• — $0,09 Gb
• PUT, GET — $0,005 1000

CloudFront

• – 50 Gb , AWS ;
• – $0,08 Gb, CloudFront , S3;
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Cognito User Pool

• – 50 MAU ( ) Cognito User Pool 50 MAU , SAML;
• — $0,005 MAU;
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API Gateway

• – 1 ;
• — $3,5 1 .

Lambda

• – 1 , 400 - ( . )
• — $0,0000166667 -.

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DynamoDB

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• RCU () – $0,25 1 ;
• WCU () – $1,25 1 ;
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In our test application, we fit into the free tier with the exception of the DynamoDB table. Its existence came to us in a round sum of $ 0.59 per month, which is quite acceptable at the current dollar rate.

So we have at our disposal an excellent tool that allows us to realize almost any fantasy practically for free.

Winter will be long and cold - it's time to start creating in the cloud.