This was a really nice read that helps really solidify some system design theoretical concepts seeing how it's applied in the real-world.

I also appreciated the diagram at the end too to help piece it all together.

Thanks for the article!

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Sep 17, 2023·edited Sep 17, 2023Liked by Leonardo Creed

Thank you for this convenient post!

About the S3 uploads, they cannot go direct to AWS servers. It has to go through the Instagram servers since the upload needs to be authenticated AND the S3 connection secrets can/should not be kept on the client end.

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Great article!

I am curious on why they needed to query Redis for the User ID instead of retrieving it in along with the Picture ID. On the related linked article they mention it was for legacy reasons but still, seems odd to me that they had this setup.

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