Cursor api

API Response Parsing Fails After Cursor Refactoring

After Cursor refactored your API response handling code, parsing responses fails with errors. The application expects one format but the API is returning another.

Response handling or format expectation was likely changed incorrectly.

Error Messages You Might See

Unexpected token < in JSON at position 0 Cannot read property of undefined JSON.parse: unexpected end of JSON input Unexpected response format
Unexpected token < in JSON at position 0Cannot read property of undefinedJSON.parse: unexpected end of JSON inputUnexpected response format

Common Causes

  1. Response parsing removed (missing .json() or JSON.parse())
  2. Assumed response structure changed, accessing wrong property path
  3. Error response format changed, not handling error case
  4. Array vs object confusion (expect array, got object)
  5. Null/undefined values not handled when accessed

How to Fix It

Verify response format with console.log(response). Parse JSON: const data = await response.json(). Check status code first: if (!response.ok) throw error. Handle null: data?.property || default. Log API response in browser DevTools Network tab.

Real developers can help you.

Milan Surelia Milan Surelia Milan Surelia is a Mobile App Developer with 5+ years of experience crafting scalable, cross-platform apps at 7Span and Meticha. At 7Span, he engineers feature-rich Flutter apps with smooth performance and modern UI. As the Co-Founder of Meticha, he builds open-source tools and developer-focused products that solve real-world problems. Expertise: 💡 Developing cross-platform apps using Flutter, Dart, and Jetpack Compose for Android, iOS, and Web. 🖋️ Sharing insights through technical writing, blogging, and open-source contributions. 🤝 Collaborating closely with designers, PMs, and developers to build seamless mobile experiences. 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Frequently Asked Questions

How do I parse JSON?

fetch: response.json(). axios: already parsed. Manual: JSON.parse(string).

How do I handle API errors?

Check response.ok or status. Catch promise rejection. Log response for debugging.

Related Cursor Issues

Can't fix it yourself?
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