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‎README.md

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|Name|README|implementation|
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|[Lambda batch with EventBridge (CloudWatch Events)](./cloudformation/lambda-batch/README.md)|✅|100%|
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|[Lambda with API Gateway](./cloudformation/api-gateway-with-lambda/README.md)|✅|100%|
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|[CloudWatch Real User Monitoring (RUM)](./cloudformation/cloudwatch-rum/README.md)|✅|100%|
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‎cloudformation/api-gateway-with-lambda/README.md

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## API Gateway with Lambda
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### Overview
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Lambda and API Gateway combined infrastructure is a powerful means for realizing serverless architecture. Lambda is a service for executing code, while API Gateway creates HTTP endpoints and forwards requests to Lambda functions.
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![lambda-with-apigateway](./lambda-with-apigateway.png)
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This combination offers the following characteristics:
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- Simplified Serverless Architecture: Combining API Gateway with Lambda allows for the creation of a serverless architecture, eliminating issues with server management and scaling.
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- Cost Efficiency: Being billed only for the resources you use, costs can scale with traffic, reducing wasteful spending.
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- Seamless Integration: API Gateway provides seamless integration with Lambda, allowing you to define API endpoints and route requests to Lambda functions.
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- Facilitates the implementation of microservices architecture, allowing deployment of independent Lambda functions for each functionality.
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### Limitations
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- Long Processing Time: Lambda functions are limited by execution time. If long processing is required, Lambda might not be suitable. Alternative methods should be explored for long-running processes.
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- Heavy Data Processing: Lambda functions have resource limits. For tasks requiring heavy data processing or significant memory, other services or architectures might be more suitable.
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- Always Active Services: Lambda is event-driven and goes to sleep when there are no requests. For services that need to be always active or for background processing, Lambda might not be appropriate.
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### How to deploy
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> [!NOTE]
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> Before running `make deploy`, ensure you have configured AWS credentials and set the correct region. Otherwise, you use single sign-on (SSO).
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```shell
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$ make deploy
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```
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### Endpoint Base URL Syntax
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The URL syntax for the API Gateway endpoint is as follows:
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```
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https://<api-id>.execute-api.<region>.amazonaws.com/<stage>
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```
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- `<api-id>`: The API Gateway ID.
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- `<region>`: The AWS region where the API Gateway is deployed.
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- `<stage>`: The stage name of the API Gateway.
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‎cloudformation/api-gateway-with-lambda/lambda-with-apigateway.drawio

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‎cloudformation/api-gateway-with-lambda/lambda-with-apigateway.png

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