flaie · HackerTrans

قبل 9 أشهرdiscuss

Good article.

Maybe you could look up the Try monad API (Scala or Vavr works in Java + Kotlin), by using some extra helper methods you can have something probably a little bit lighter to use.

I believe your example would look like the following with the Try monad (in Java):

  public UserDTO register(UserRegistrationRequest registrationRequest) {
    return Try.of(() -> authService.userExists(registrationRequest.email))
      .filter(Objects::isNull, () -> badRequest("user already exists"))
      .map(userId -> authService.register(registrationRequest.email, registrationRequest.password))
      .get();
  }

The login() function would be using the same pattern to call authService.verify() then filtering nonNull and signing the JWT, so it would be the same pattern for both.

flaie

قبل سنتينdiscuss

This is what I thought about OCaml when I first tried in 2001. I still do.

flaie

قبل سنتينdiscuss

Looks nice, I didn't knew about this tool. Sad to see 217 open PR, and nothing gets merged.

flaie

قبل سنتينdiscuss

Exactly this, bookmarked.

flaie

قبل 3 سنواتdiscuss

This was a very good read, and I did learn some nice tricks, thank you very much.

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