John Duff

Developer and Engineering Leader. Previously Director of Engineering @Shopify.

[Jean Boussier @_byroot]

I tried to explain why I don't believe the recent accusations toward my former teammates, as well as how the Ruby and Rails Infra team at Shopify operates and why it can be trusted.

https://t.co/cgRySjoVlr

[John Duff @johnduff]

@kalenjordan I submitted a PR to the official repo but it wasn’t accepted so had to roll my own https://t.co/Cc9zyto1WL

[John Duff @johnduff]

@kalenjordan I templated my Shopify app toml that I think does what you’re describing. I have one toml.erb that I inject some of the environment specific bits into when I deploy or run the app. I leave the scopes in there, but could move them out and inject them.

[Gadget @gadget_dev]

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[John Duff @johnduff]

@_byroot Really appreciate these deep dive articles Jean, keep ‘em coming!

[John Duff @johnduff]

@_byroot Thanks for the follow up diving into the details of instrumenting this too! https://t.co/Xa0JWfk47C

[John Duff @johnduff]

@_byroot You could, I feel like it could be a big enough / important enough topic to warrant another post and link to it too. Totally up to you though 😅

[John Duff @johnduff]

@_byroot Thanks for writing this Jean! IO comes up so often when talking about Rails performance so great to have a post diving into the details. I love the part about conflating scale with performance. This should be linked from the Rails performance guides, so much good info in here.

[Jean Boussier @_byroot]

I want to write a post about Pitchfork, but before I can get to that I need to share some thoughts.

I suspect this one may be more controversial than the optimizing JSON series 😅.

https://t.co/eJQXZnwt9u

[John Duff @johnduff]

@hunkybill @ShopifyDevs I’m with you! Recently implemented it and used ActionController::Metal and it’s super speedy too. Can likely make some more improvements if needed, but the baseline is great and so much more enjoyable to work with.

[John Duff @johnduff]

@hunkybill @ShopifyDevs I have a strong suspicion that nothing is changing there and this is all checkout extension after the rates are delivered, but really hope to be proven wrong!

[John Duff @johnduff]

@kalenjordan @gilgNYC I was just reading through some API updates and came across this which mentioned tags being deprecated and recommending using customer segments to do it instead. Late, but maybe helpful for next time? https://t.co/hJQwU2utqW

[John Duff @johnduff]

@gilgNYC @TaylorSicard Since the status page is usually quite delayed from when a problem starts I usually look for other signals first to indicate there could be an outage as well.

[John Duff @johnduff]

@gilgNYC @TaylorSicard I depend on my own api calls failing, not automated notices 😁.

[John Duff @johnduff]

@kalenjordan @gilgNYC Have you tried using tags in the search grammar? If it works in the admin it might work here and just not be explicitly documented https://t.co/C5HaRfg8AO

[John Duff @johnduff]

@hunkybill @releod No worries! There’s a lot of bits and pieces now that can be used in some overlapping ways. Hard to keep it all straight!

[John Duff @johnduff]

@hunkybill @releod A checkout extension can add/remove items and update attributes. You can’t hook into specific buttons, but you can listen to cart changes and make changes yourself from the extension.