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ExternalSoftware Engineering
DEV Community

Async Event Processing Architectures for Shopify — A Developer's Guide

Synchronous processing kills Shopify scalability. Every blocked operation is a timeout waiting to happen. This guide covers the async event processing patterns that production Shopify systems actually use. We'll go from webhook receiver basics all the way to saga orchestration and event sourcing. Shopify fires webhooks for orders, fulfillments, inventory changes, customer updates, and more. If you process these synchronously inside your endpoint, you will hit timeouts, lose data, and bring down

shopifyjavascriptwebdev
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ExternalSoftware Engineering
DEV Community

I Built a Live UK Electricity Price Dashboard. Here's What Went Wrong (and Right)

I'm on Agile Octopus, where electricity prices change every 30 minutes. Every evening I'd open the Octopus app trying to figure out when to run the dishwasher. The app shows you the rates, but not "the cheapest 2-hour window tonight", which is the thing you actually need to know when you're standing in the kitchen at 8pm. So I built ukelectricityprices.co.uk. A dashboard that shows live half-hourly prices, finds the cheapest slots for appliances, and compares tariffs across all 14 UK regions. Ne

nextjstypescriptapi
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ExternalSoftware Engineering
DEV Community

The #1 Developer Skill in the Agentic Era

At first, many dismissed AI as a temporary bubble, but now that engineering organizations are adopting agentic workflows at scale, it is much harder to negate this new reality. Naturally, this shift has triggered a wave of industry anxiety. Engineers are looking at the landscape and asking a frantic question: What skills do I need to keep my job? For decades, developers prided themselves on memorizing syntax, writing algorithms from scratch, and passing LeetCode interviews by repeating patterns.

aiagentsagentskills
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ExternalSoftware Engineering
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Node.js "type": "module" vs CommonJS: 7 Real Errors and the .cjs/.mjs Fix Map (2026)

⚠️ この記事はアフィリエイト広告（プロモーション）を含みます。リンク先で発生した収益の一部が運営者に支払われますが、読者の購入価格には一切影響ありません。 If you just added "type": "module" to package.json and your test runner died with ERR_REQUIRE_ESM, this article gets you back to green in about 15 minutes. By the end you'll have a copy-pasteable decision map for .js / .cjs / .mjs, a working dual-format build, and the three config files (Jest, ESLint, a small CLI) that break most often — with the exact error strings so you can Ctrl+F your stack trace. I migrated a 42-

nodejavascriptesm
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