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Posts on AWS.

AWS S3 storage classes pricing is not what you think

2 January 2017 ·

Since publishing this post, AWS reached out to us about the RR pricing. See bottom of the post for the update.

When storing data in S3, at some point everyone asks the question about storage classes. At first glance it looks more or less simple - if you’re accessing your data less often, or it’s not very important, you can pay less. Until you look into details, find all the asterisks and compare the actual numbers.

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Invalid permissions on Lambda function: fixing API Gateway in CloudFormation

14 November 2016 ·

AWS Lambda and API Gateway are becoming synonymous with “serverless infrastructure” and getting more and more popular. To deploy them in repeatable way, one of the tools I recommend is CloudFormation - see deploying API Gateway and Lambda with CloudFormation for the basic setup. There are many ways you can define your API and your Lambda, but when connecting the two with CloudFormation there’s usually something that many people miss, and only notice when {"message": "Internal server error"} is thrown from their API Gateway endpoint.

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