Making Hoagies With Node, MongoDB, And Golang
summary
Wawa refactors its in‑store kiosks into an Electron app with Electron + Next.js + Node.js front end, Golang ACLs and APIs that consume Kafka events, and Golang services + Kafka for real‑time menu assembly. Menus and store‑specific inventory sync from MongoDB Atlas using MongoDB Atlas + Realm Sync into local Realms for full offline ordering. The fleet of about 4,500 devices uses signed executables, two‑week auto‑update pipelines with canary rollouts, Datadog/OpenTelemetry telemetry, and per‑store lock/unlock ingredient enforcement.
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