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maxdeviant

731 karma · joined October 29, 2013

https://maxdeviant.com
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maxdeviant··on Zed AI
Thanks for the report, this should be fixed now!
maxdeviant··on Zed, a collaborative code editor, is now open source
We've adjusted it so that the CLA can now be viewed without signing in.

Sorry about that!

maxdeviant··on Ask HN: Programs that saved you 100 hours?
I'm not familiar with Keycloak. I glanced at their docs briefly, and it looks like Keycloak manages your users for you?

WorkOS only handles SSO, so all of our users are still stored in our own database. This is one of the big reasons we went with WorkOS as opposed to something like Auth0 or AWS Cognito.

maxdeviant··on Ask HN: Programs that saved you 100 hours?
WorkOS (https://workos.com/) if you need to support single sign-on (SSO) for your app.

SSO is free, and they offer other enterprise-focused features, like directory sync and audit trails.

maxdeviant··on Secure by Design
Yes. This is exactly what we do at work.

It makes sure that you never pass a `LocationId` where a `UserId` is expected; the type system literally will not allow it.

maxdeviant··on Why functional programming matters (1990) [pdf]
You can also use Fable (https://fable.io/) to compile F# to JS.
maxdeviant··on Show HN: Darklang
Dark looks really cool. When I heard about it before my initial reaction was a huge "nope", but after watching the videos I'm curious to try it out.

It's amazing just how little friction there is for you to get an API endpoint backed by a datastore up and running. That being said, there are a bunch of unknowns. Having my entire application, even down the language it's implemented in, being proprietary is a little scary.

Will definitely be looking forward to playing around with this. Just as soon as I get my signup email ;)

maxdeviant··on Semantic Validation in Rust
The problem I have with this style of validation is that it doesn't "make illegal states unrepresentable". If the validation is not run then it is still possible for instances of `ContactData` that violate the business rules to enter the system.

  > Our reservation business requires that contact data entities are only accepted if all of the following conditions are satisfied:
  >
  > - The e-mail address is valid
  > - The phone number is valid
  > - Either e-mail address, or phone number, or both are present
In this case, all of the above rules can be encoded into the type system itself. Here's how I would approach this particular problem:

  struct PhoneNumber(String);
  
  impl PhoneNumber {
      fn new(value: String) -> Result<Self, ValidationError> {
          if is_valid_phone_number(value) {
              Ok(Self(value))
          } else {
              Err(ValidationError)
          }
      }
  }
  
  struct EmailAddress(String);
  
  impl EmailAddress {
      fn new(value: String) -> Result<Self, ValidationError> {
          if is_valid_email_address(value) {
              Ok(Self(value))
          } else {
              Err(ValidationError)
          }
      }
  }
  
  enum ContactData {
      PhoneOnly(PhoneNumber),
      EmailOnly(EmailAddress),
      PhoneAndEmail {
          phone: PhoneNumber,
          email: EmailAddress
      }
  }
This approach, when applied alongside Rust's modules and visibility modifiers, would make it impossible for any of these types to be in an invalid state.
maxdeviant··on Ask HN: 2018 resolutions?
Here is what I'm going to focus on in 2018:

- Work less, achieve more

- No alcohol

- Read more

- Write more

- Practice my Mandarin

- Produce 1 song/week (https://weeklybeats.com/)

- Continue to make one thing every day

maxdeviant··on Ask HN: What programming language you will learn in 2018?
F#
maxdeviant··on HN: List of April Fools' Day Announcements (2017)
Goodbye JavaScript: Introducing our CSS API Client (https://blog.algolia.com/js-is-dead-all-hail-css/)
maxdeviant··on Ask HN: Where do you host your personal blog these days?
My site is written in React + Next.js (https://github.com/zeit/next.js/) and hosted on now (https://zeit.co/now).
maxdeviant··on Stack on a Budget – A collection of services with great free tiers
Have a look at https://github.com/getsentry/sentry.
maxdeviant··on Why is routing so complex?
React Router v4 places a greater emphasis on splitting up your routes, as opposed to keeping them all in one spot [1].

It also allows you to do really cool stuff like in their recursive routing example [2].

[1]: https://react-router.now.sh/basic

[2]: https://react-router.now.sh/recursive-paths

maxdeviant··on Why most “clever” code ain’t so clever after all
You can use composition to reduce boilerplate as well. Composition > inheritance is something that is emphasized greatly in the React community.
maxdeviant··on Ask HN: Static site generator with web UI?
Your solution sounds like exactly what I need!

Currently upgrading my company's existing website, and was looking into WordPress as a CMS. The security concerns and the resource costs of using WordPress were key detractors, but this sounds like it could be the answer for us as well.

maxdeviant··on Request: Open source the Hacker News front-end code
There is a HN clone (https://github.com/arclanguage/anarki/blob/master/lib/news.a...) written in Anarki, which is a community fork of Arc.
maxdeviant··on HN. Let's share Twitter accounts
Generally nerdy tweets and mini-rants about stupidity: https://twitter.com/maxdeviant
maxdeviant··on Ask HN: What are you learning right now?
Was this with any prior experience with the language?
maxdeviant··on Wifijammer – Continuously jam all wifi clients and access points around you
Is this traceable in any way?

Because my college campus seems like the perfect place to test it out for a little induced chaos, but I'd rather not get in trouble with the network admins.