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Serverless Applications, CloudFormation - Coggle Diagram

- - - - Execution Context
    - - Execution Environment Lifecycle
  - - - Type of Concurrency Executions
        
        Event Source
        
        Poll-based event source
        
        Push-based event source
        
        Event source is an entity that publishes events. Lambda function is the custom code processes the events.
      - Solutions for Concurrency Execution reach limits
        
        Configure Reserved Concurrency
        
        Exponential Backoff
        
        Dead-letter queue
        
        Request a service quota increase
  - - - Deployment Package
        
        Upload
        
        Directly to Lambda
        
        S3
  - - - Reserved concurrency
    - - Provisioned Concurrency
  - - - Viewer Request
        
        CloudFront Cache
      - Viewer Response
        
        End Usert
      - Origin Request
        
        Origin Server
      - Origin Response
  - - - RequestResponse (Default)
    - - Event
  - - - API Gateway Caching
        
        Invalidate Cache
        
        Cache-Control: Max-age=0
        
        allow only authorized clients to invalidate API gateway cache
        
        Request Authorization
      - API Gateway Throttling
      - secure HTTP endpoint to invoke your Lambda function and can help manage large volumes of calls to your function by throttling traffic and automatically validating and authorizing API calls.
      - Integration with Lambda/HTTP endpoint/AWS Service/testing(Mock) at the backend
        
        API integration type
        
        Lambda Endpoint
        
        Connection between Lambda and API Gateway
        
        API Gateway Lambda Integration
        
        API Gateway do some transformations. you can specify how the incoming request data is mapped to the integration request and how the resulting integration response data is mapped to the method response.
        
        1 more item...
        
        The API gateway doesn’t do any transformation or modification of the incoming request or the outgoing response. API Gateway passes the incoming request from the client as the input to the backend Lambda function
        
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        HTTP endpoint
        
        HTTP Integration Type
        
        HTTP proxy Integration
        
        HTTP custom integration
        
        AWS Service Action
        
        AWS integration of non-proxy type
        
        API Testing
        
        Mock Integration
      - Stage Variables
      - Control Access to API (Authentication)
        
        Lambda Authorizer
        
        Request parameter-based
        
        Token-based
- - - - An AWS SAM template file closely follows the format of an AWS CloudFormation template file. The primary differences between AWS SAM template files and AWS CloudFormation template files are the following:
        
        Transform (Required)
        
        Globals
        
        Resources (Required)
        
        Parameters
      - Controlling access to APIs: You can use AWS SAM to control who can access your API Gateway APIs by enabling authorization within your AWS SAM template.
        
        Lambda authorizer
        
        Token based
        
        Request parameter based
        
        Cognito user pools
    - - bundle application code and dependencies into a package and deploy
        
        Build SAM template locally
        
        sam package
        
        Package SAM Template to S3
        
        S3
        
        Deploy SAM template from S3
        
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    - - Deploying serverless applications gradually
        
        If you use AWS SAM to create your serverless application, it comes built-in with CodeDeploy to provide gradual Lambda deployments
        
        AutoPublishAlias
        
        Deployment Preference Type
        
        Canary
        
        Linear
        
        All-at-once
        
        Alarms
        
        Hooks
        
        PreTraffic
        
        PostTraffic
    - - AWS Toolkits
      - Running SAM locally in debug mode
      - Start local API gateway in debug mode on port 5858