Doorbell with facial recognition

https://medium.com/@mppise/a-doorbell-with-facial-recognition-3b132bf9605

smart heating

https://medium.com/data-day/hacking-my-smart-heating-with-aws-39012cb6ecfa

Nat gateways

https://medium.com/@zeebaig/using-nat-gateways-in-aws-455f88887143

Aws Appsync

https://hackernoon.com/graphql-authorization-with-multiple-data-sources-using-aws-appsync-dfae2e350bf2

AWS Trust relationship

https://docs.aws.amazon.com/IAM/latest/UserGuide/troubleshoot_roles.html
https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/STS.html#assumeRole-property
https://docs.aws.amazon.com/cli/latest/userguide/cli-roles.html

AWS auto scaling

https://aws.amazon.com/blogs/aws/new-auto-scaling-for-amazon-dynamodb/

https://aws.amazon.com/blogs/database/scaling-your-amazon-rds-instance-vertically-and-horizontally/

Cognito backup

https://github.com/mifi/cognito-backup
https://docs.aws.amazon.com/cognito/latest/developerguide/cognito-user-pools-using-import-tool-csv-header.html to convert
https://docs.aws.amazon.com/cognito/latest/developerguide/user-pool-settings-attributes.html
https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-cognito-userpool.html#cfn-cognito-userpool-schema
https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/CognitoIdentityServiceProvider.html

AWS cloudfront cache

https://stackoverflow.com/questions/18774069/amazon-cloudfront-cache-control-no-cache-header-has-no-effect-after-24-hours

AWS Cognito temporary passwords

https://stackoverflow.com/questions/43126153/can-aws-cognito-admincreateuser-send-a-temporary-password
https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cognito-userpool-invitemessagetemplate.html

Send personalized email

https://docs.aws.amazon.com/ses/latest/DeveloperGuide/send-personalized-email-api.html

Message Customizations

https://docs.aws.amazon.com/cognito/latest/developerguide/signing-up-users-in-your-app.html
https://docs.aws.amazon.com/cognito/latest/developerguide/cognito-user-pool-settings-message-customizations.html
https://docs.aws.amazon.com/cognito/latest/developerguide/cognito-user-identity-pools-working-with-aws-lambda-triggers.html#cognito-user-pools-lambda-trigger-syntax-custom-message
https://docs.aws.amazon.com/cognito/latest/developerguide/user-pool-settings-attributes.html
https://docs.aws.amazon.com/cognito/latest/developerguide/user-pool-settings-email-phone-verification.html

AWS Cognito Password

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-cognito-userpool.html

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cognito-userpool-passwordpolicy.html

https://docs.aws.amazon.com/cognito-user-identity-pools/latest/APIReference/API_ForgotPassword.html

AWS Cognito Verification code problem

http://docs.aws.amazon.com/cognito/latest/developerguide/user-pool-settings-email-phone-verification.html

http://docs.aws.amazon.com/cli/latest/reference/cognito-idp/get-user-attribute-verification-code.html

http://docs.aws.amazon.com/cognito-user-identity-pools/latest/APIReference/API_GetUserAttributeVerificationCode.html

https://docs.aws.amazon.com/cognito/latest/developerguide/cognito-user-identity-pools-working-with-aws-lambda-triggers.html#aws-lambda-triggers-pre-registration-example

https://stackoverflow.com/questions/42959860/aws-lambda-cognito-updating-user-phone-number-attribute-without-sending-an-s
AutoVerifiedAttributes