Idempotency Lessons From an Email Agent
A customer emails your support agent at 9:14 a.m. At 9:15 they get a helpful reply. At 9:16 they get the same reply again, word for word. Nothing cras…
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How to Build a Telegram Crypto Checkout in Go (And Avoid Going Insane with Manual Checks)
We've all built that one MVP. You know the flow: Your bot spits out a USDT address. You ask the customer to reply with a transaction hash or, worse, a…
Building Adal: predictable webhook delivery without black boxes
Hi DEV community, I'm Yuriy, a fullstack developer and DevOps engineer with 10+ years of experience. I'm currently building Adal — a webhook delivery …
Building Reliable Event Delivery for XRPL Applications
The XRP Ledger processes thousands of transactions every minute. Each transaction creates ripple effects across wallets, order books, and network stat…
Stop Losing Shopify Webhooks: A Retry Strategy That Survives Real Outages
Stop Losing Shopify Webhooks: A Retry Strategy That Survives Real Outages Here is a scenario every Shopify developer eventually lives through. It is t…
The Wrong Way to Think About XRPL Event Infrastructure
Most developers approach XRPL event monitoring like it's a simple polling problem. They spin up a script that checks wallet balances every few minutes…
From Webhooks to x402: A Practical Migration Guide for Developers
Asynchronous Trust and Its Hidden Costs Webhooks are a liability for financial infrastructure. Separating action from settlement introduces real fragi…
Self-Hosted Vessel Email Alerts with AWS Lambda and SES
The thing you actually want is an email. Not a dashboard you have to remember to open. Not a webhook you have to write a server for. An email — the ki…