Cursor
api
Async/Await Promise Chain Broken
After Cursor refactored your async/await code, promises are no longer resolving correctly. Operations that should happen sequentially are executing out of order, causing data inconsistencies.
Async/await syntax or promise handling was likely changed incorrectly.
Error Messages You Might See
Cannot read property of undefined
Promise rejection: undefined
Data not loaded
Operation executed out of order
Common Causes
- Missing await on async function call, continuing before completion
- Promise.all used with dependent operations (order matters)
- Try/catch removed, unhandled promise rejections
- Async function syntax broken (async not declared)
- Return statement missing in async function
How to Fix It
Always await async calls: const data = await fetchData(). Use Promise.all for parallel: Promise.all([fetch1, fetch2]). Use .then() chain for sequential. Wrap in try/catch: try { ... } catch(e) { ... }. Verify async function returns Promise.
Real developers can help you.
Jen Jacobsen
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Alvin Voo
I’ve watched the tech landscape evolve over the last decade—from the structured days of Java Server Pages to the current "wild west" of Agentic-driven development. While AI can "vibe" a frontend into existence, I specialize in the architecture that keeps it from collapsing.
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Jacek Rozanski
Senior PHP/Symfony developer and DevOps engineer with 20+ years of professional experience, running opcode.pl (web development agency, est. 2004).
Day job: I'm the sole backend developer at merketing company where I own and maintain 11 PHP/Symfony microservices on AWS (ECS Fargate, RDS, S3, CloudFront), handle the full CI/CD pipeline (Bitbucket Pipelines, Docker), and manage monitoring with Sentry and CloudWatch. These services handle high request volumes in production every month.
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Get HelpFrequently Asked Questions
When should I use Promise.all?
For parallel independent operations. Promise.all(promises) waits for all. Fails if any rejects.
How do I handle async errors?
try/catch with await. Or .catch() on promise. Don't ignore errors - they'll cause bugs.