Provide a PDF, Image or raw QR code data, and verify a New Zealand COVID-19 domestic passport.
Therefore I have now stopped hosting this API service. If you are in need of a verifier library, there are open source options such as vaxxnz/nzcp-js
Yes, you can access the a live version at https://passport.covid.tools
The API is hosted on Google's Firebase platform
Once the passport has been processed, the information is discarded. The code is open-source for privacy concerns.
The 27-page government documentation can take a while to implement, and be costly for a business. Verifying passports should be free!
Thank you @JoaoSisanoski for the help with the Firebase implementation.
And thanks to @MarshallOfSound, your implementation helped significantly!