Demo: Simulate random error responses from a custom API
This sample contains a demo web application connected to a placeholder API. Using Dev Proxy, you can simulate random errors returned by the API and see how the app handles them.
Demo: Simulate random error responses from a custom API
Summary
This sample contains a demo web application connected to a placeholder API. Using Dev Proxy, you can simulate random errors returned by the API and see how the app handles them.
Compatibility
Contributors
Version history
| Version | Date | Comments |
|---|---|---|
| 1.5 | February 4, 2026 | Updated to Dev Proxy v2.1.0 |
| 1.4 | January 18, 2026 | Moved config files to .devproxy folder |
| 1.3 | January 5, 2026 | Updated to Dev Proxy v2.0.0 |
| 1.2 | June 27, 2025 | Updated to Dev Proxy v0.29.2 |
| 1.1 | December 2, 2024 | Updated to Dev Proxy v0.23.0 |
| 1.0 | January 26, 2024 | Initial release |
Prerequisites
Minimal path to awesome
- Get the preset using Dev Proxy by running
devproxy config get demo-randomerror-js - Navigate to the Dev Proxy installation folder, and open the
config/demo-randomerror-jsfolder - Start the sample app and Dev Proxy by running
npm start - In a web browser, navigate to
http://localhost:3000and interact with the sample app to see how it handles random errors
Help
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Disclaimer
THIS CODE IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.