Replit
performance
Async Request Timeout on Replit
Asynchronous requests timeout before completing, even though operation should finish quickly. Async operations hang indefinitely.
Misconfigured timeout values or blocking operations in async code cause hangs.
Error Messages You Might See
java.util.concurrent.TimeoutException
AsyncRequestTimeoutException
Connection timeout
Common Causes
- Timeout value too short for actual operation time
- Blocking operation on async thread
- Deadlock in async task handling
- Thread pool exhausted, tasks queued indefinitely
- Missing error handling for timeout exception
How to Fix It
Set appropriate timeouts based on operation nature (5-30s). Use non-blocking async libraries (WebClient, Mono, Flux). Configure thread pool appropriately. Implement proper exception handling for TimeoutException. Use CompletableFuture.orTimeout() or Flux.timeout() for time limits. Monitor thread pool metrics.
Real developers can help you.
Matthew Jordan
I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job.
PawelPloszaj
I'm fronted developer with 10+ years of experience with big projects. I have small backend background too
rayush33
JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems
ISHANTDEEP SINGH
Senior Software Engineer with 7+ years of experience in React, JavaScript, TypeScript, Next.js, and Node.js. I’ve also worked as a tech lead for startups, owning end-to-end technical execution including architecture, development, scaling, and delivery. I bring a strong mix of hands-on coding, product thinking, and technical leadership, and I’m comfortable building products from scratch as well as improving and scaling existing systems.
Caio Rodrigues
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Luca Liberati
I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture
Omar Faruk
As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience.
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Tejas Chokhawala
Full-stack engineer with 5 years experience building production web apps using React, Next.js and TypeScript.
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I build and fix web apps across Next.js, Node.js, and DBs.
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hanson1014
Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround.
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Get HelpFrequently Asked Questions
What timeout should async requests have?
5-10s for local operations, 10-30s for external APIs
How do I use WebClient with timeout?
WebClient.create() with HttpClient.create().responseTimeout(Duration.ofSeconds(10))