Mechanical sympathy for QR codes: making NSW check-in better

• nzcovidtracer-app

  24 432 0.0 TypeScript

  This is the repository for the front-end of the NZ COVID Tracer app.

  

Really interesting write-up! New Zealand COVID Tracer app QR codes are actually pretty similar. We don't use URLs, but we do use a base64 encoded JSON prefixed with the "NZCOVIDTRACER" string.

NZ Covid Tracer App is actually open source and the QR code reading function can be seen here: https://github.com/minhealthnz/nzcovidtracer-app/blob/main/s...

And here's the type for the JSON we use: https://github.com/minhealthnz/nzcovidtracer-app/blob/main/s...

• huonw

  1 - -

Uh, huh, I clearly didn’t test it properly. I had thought I’d validated checking in while offline. Oops: https://github.com/huonw/huonw.github.io/commit/fd19b9d66af7...

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• duckduckgo-locales

  2,077 94 0.0 Perl

  Translation files for <a href="https://duckduckgo.com"> </a>

  

Unfortunately removing the www doesn't work with the current app. At least for the iOS app, I imagine that www.service.nsw.gov.au is an associated domain, but service.nsw.gov.au is not https://developer.apple.com/documentation/Xcode/supporting-a... .

For instance, scanning with an iPhone camera will jump into the browser, rather than to the app (example, if you're on a desktop and have a mobile device handy: https://duckduckgo.com/?q=qr+code+https%3A%2F%2Fservice.nsw.... )

• ZXing

  42 32,217 8.6 Java

  ZXing ("Zebra Crossing") barcode scanning library for Java, Android

  

Since most government software is written in Java, the QR codes on PDF check-in posters are probably being generated with ZXing [1].

[1] https://github.com/zxing/zxing

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