The QR code is likely to be an indelible (if not marginally insecure) mainstay in contemporary culture for some time. Given the right client, scanning this code and requesting the underlying URL can trigger any number of custom behaviors. Using Hasura, we can simplify the API for these services. Hasura can store the messages, the associated QR code, and act as the destination for scans.
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A simplified event-driven architectureOur simple appBuilding the appUsing the APISummarySort: