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Notes from the on-chain trenches.

Engineering deep-dives, product updates and field notes on building developer-first crypto payments. Written by the team shipping the API.

Illustration for Real-Time Crypto Payment Status: WebSockets vs SSE for Checkout

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Real-Time Crypto Payment Status: WebSockets vs SSE for Checkout

How to stream live payment confirmations to checkout UIs using WebSockets and Server-Sent Events, with reconnection handling, missed-event recovery, and BchainPay API examples.

Cipher9 min read
EngineeringAPIPayments
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