Question 1

PocketMocker vs Mock Service Worker: which is better for frontend development?

Accepted Answer

PocketMocker excels with its visual control panel for instant UI feedback and easy data tweaking, while Mock Service Worker offers more robust interception for both browser and Node.js. Choose PocketMocker for rapid prototyping and visual debugging, MSW for comprehensive testing across environments.

Question 2

How to import a Postman collection into PocketMocker?

Accepted Answer

In the PocketMocker panel, use the import feature to load Postman Collection v2.1 files. It automatically converts fields like user_id to @guid for smart mock generation, as described in the Import & Export section, making it seamless to reuse existing API definitions.

Question 3

Can PocketMocker mock WebSocket requests?

Accepted Answer

No, PocketMocker currently only intercepts HTTP requests via fetch and XMLHttpRequest. WebSocket mocking is not supported, so it's not ideal for real-time applications that depend on WebSocket communication.

Question 4

How does PocketMocker handle CORS issues during development?

Accepted Answer

Since it intercepts requests in-browser, PocketMocker can mock responses locally to bypass CORS errors for development. However, for unmocked real API calls, you may still need backend CORS configuration to avoid issues.

Question 5

Is PocketMocker compatible with React or Vue?

Accepted Answer

Yes, it's framework-agnostic and works with any JavaScript project. Just import it in your entry file, and it runs in the browser regardless of the frontend framework, as shown in the Quick Start examples.

Question 6

What are the performance implications of using PocketMocker?

Accepted Answer

Monkey patching fetch and XMLHttpRequest adds minimal overhead, but in heavy applications with many concurrent requests, it might slightly affect network timing. The impact is generally negligible for development purposes, as noted in the Technical Architecture.

Pocket Mocker

What is Pocket Mocker?

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