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import 'font-awesome/css/font-awesome.min.css'
import React, { lazy } from 'react'
import ReactDOM from 'react-dom/client'
import {
QueryClient,
QueryClientProvider,
QueryErrorResetBoundary,
useQueryClient,
} from '@tanstack/react-query'
import { ReactQueryDevtools } from '@tanstack/react-query-devtools'
import { ErrorBoundary } from 'react-error-boundary'
import { fetchProjects } from './queries'
import Button from './components/Button'
const Projects = lazy(() => import('./components/Projects'))
const Project = lazy(() => import('./components/Project'))
const queryClient = new QueryClient({
defaultOptions: {
queries: {
retry: 0,
},
},
})
function App() {
return (
<QueryClientProvider client={queryClient}>
<Example />
</QueryClientProvider>
)
}
function Example() {
const queryClient = useQueryClient()
const [showProjects, setShowProjects] = React.useState(false)
const [activeProject, setActiveProject] = React.useState<string | null>(null)
return (
<>
<Button
onClick={() => {
setShowProjects((old) => {
if (!old) {
queryClient.prefetchQuery({
queryKey: ['projects'],
queryFn: fetchProjects,
})
}
return !old
})
}}
>
{showProjects ? 'Hide Projects' : 'Show Projects'}
</Button>
<hr />
<QueryErrorResetBoundary>
{({ reset }) => (
<ErrorBoundary
fallbackRender={({ error, resetErrorBoundary }) => (
<div>
There was an error!{' '}
<Button onClick={() => resetErrorBoundary()}>Try again</Button>
<pre style={{ whiteSpace: 'normal' }}>{error.message}</pre>
</div>
)}
onReset={reset}
>
{showProjects ? (
<React.Suspense fallback={<h1>Loading projects...</h1>}>
{activeProject ? (
<Project
activeProject={activeProject}
setActiveProject={setActiveProject}
/>
) : (
<Projects setActiveProject={setActiveProject} />
)}
</React.Suspense>
) : null}
</ErrorBoundary>
)}
</QueryErrorResetBoundary>
<ReactQueryDevtools initialIsOpen />
</>
)
}
const rootElement = document.getElementById('root') as HTMLElement
ReactDOM.createRoot(rootElement).render(<App />)
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