React Guard
React Guard helps to prevent White Screen of Death, improves user expirience and assists in the bug hunt.
It patches React, so it wraps every render function (including function components) intro try-catch block.
If an exception occurs during the rendering, it calls specified guard function.
The guard function gets the exception object and extra information such as
the component props, state and displayName.
Installation
npm install react-guard --save
or
yarn add react-guard
Usage
var React = require('react')
var reactGuard = require('react-guard')
// Catch and process component render exceptions.
reactGuard(React, function (err, componentInfo) {
// Print stacktrace to the console
console && console.error && console.error(err.stack)
// Notify Sentry (replace with your service of choice)
Raven.captureException(err, {
extra: {
props: componentInfo.props,
state: componentInfo.state,
displayName: componentInfo.displayName
}
})
// Replace failed component with "Failed to render".
// Use `return null` to render nothing.
return <div>Failed to render</div>
})