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Rails + Storing User Settings — 2016 Edition

Mike Coutermarsh

Jun 12, 2016

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Building a webhooks service

I recently had the chance to work on building webhooks for PlanetScale. As part of this, I learned quite a lot about the possible security vulnerabilities that running a webhooks service can expose you too. You might be surprised with all the risks there are! Everything I learned is over

Nov 21, 2023 3 min read

Easy Rails controller rate limiting with Rails.cache

Here's an easy trick I reach for when wanting to add simple rate limiting to an endpoint. def special_endpoint model = Model.find(params[:id]) cache_key = "rate_limit:mymodel:#{model.id}" # If the key exists, we rate limit if Rails.cache.fetch(cache_key) return render json: { code: "too_

Oct 19, 2023 1 min read

How dare you test a private method

I feel inspired to talk more about “testing a private method” (gasp!). Since people seem to get upset about it. Where did this idea of it being bad even come from? I remember when learning to code it was all over the place. Blog posts, books, podcasts. I remember being

Sep 27, 2023 1 min read

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