Add frontend

[MervinPraison]

PR Type

Enhancement

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Description

• Add React frontend component for task search functionality

• Implement search input with real-time API integration

• Include loading states and error handling

• Display tasks in a list format

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Diagram Walkthrough

flowchart LR
  A["User Input"] --> B["Search Query"]
  B --> C["API Call /search"]
  C --> D["Task Results"]
  D --> E["Display Tasks"]

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File Walkthrough

	Relevant files
Enhancement	frontend.jsx React task search component implementation                              graphite-demo/frontend.jsx Create new React component TaskSearch with state management Implement search functionality with API integration via /search endpoint Add loading and error handling states Render search input and task list display +56/-0

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Note

Low Risk
Adds an isolated frontend component with straightforward fetch + rendering logic; main risk is extra network traffic due to per-keystroke requests.

Overview
Adds a new React TaskSearch component (graphite-demo/frontend.jsx) that calls GET /search?query=... whenever the input changes and renders the returned tasks.

Includes basic loading and error states and displays results as a list keyed by task.id.

^{Written by Cursor Bugbot for commit 4764ef3. This will update automatically on new commits. Configure here.}

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch 08-19-demo_a6905493_add_frontend

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[MervinPraison]

@claude review this pull request and do a detailed analysis and fix this if the existing code doesn't have the solution implemented. Making sure it has backward compatibility, no existing features removed. After making those changes, again review the applied changes. Use @web to search if you dont know any information or to find the latest documentation or to find the latest version. Run the code if you think you need to run it to test it. Minimal code change to start with if required any changes. MAINLY IT SHOULD NOT IMPACT ON THE CURRENT SPEED OF EXECUTION of existing features, not increasing the overhead.

[MervinPraison]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• Add frontend #1083 👈 (View in Graphite)
• add server api #1082
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[github-actions]

Claude encountered an error —— View job

---

I'll analyze this and get back to you.

[qodo-code-review]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Excessive Requests Fetch triggers on every keystroke without debouncing or minimal query length, which can overload the API and degrade UX. Consider debouncing and skipping empty queries. useEffect(() => { setLoading(true); fetch(`/search?query=${encodeURIComponent(searchQuery)}`) .then(response => { if (!response.ok) { throw new Error('Network response was not ok'); } return response.json(); }) .then(data => { setTasks(data); setLoading(false); }) .catch(error => { setError(error.message); setLoading(false); }); }, [searchQuery]); // Depend on searchQuery Empty Query Handling When the search query is empty, the component still requests /search?query=, which may be undesirable. Decide whether to avoid fetching, show recent items, or fetch defaults. useEffect(() => { setLoading(true); fetch(`/search?query=${encodeURIComponent(searchQuery)}`) .then(response => { if (!response.ok) { throw new Error('Network response was not ok'); } return response.json(); }) .then(data => { setTasks(data); setLoading(false); }) .catch(error => { setError(error.message); setLoading(false); }); }, [searchQuery]); // Depend on searchQuery Error State Persistence Once an error occurs, subsequent successful inputs may not clear it before fetch completion. Clear error at the start of a new fetch and consider showing partial results while loading. useEffect(() => { setLoading(true); fetch(`/search?query=${encodeURIComponent(searchQuery)}`) .then(response => { if (!response.ok) { throw new Error('Network response was not ok'); } return response.json(); }) .then(data => { setTasks(data); setLoading(false); }) .catch(error => { setError(error.message); setLoading(false); }); }, [searchQuery]); // Depend on searchQuery if (loading) { return <div>Loading...</div>; } if (error) { return <div>Error: {error}</div>; }

[qodo-code-review]

PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Impact
Possible issue	Cancel stale fetch requests Add an abort mechanism to cancel in-flight requests when searchQuery changes or the component unmounts. This avoids race conditions where slower responses overwrite newer results and prevents setting state after unmount. graphite-demo/frontend.jsx [9-26] useEffect(() => { + const controller = new AbortController(); + const { signal } = controller; + setLoading(true); - fetch(`/search?query=${encodeURIComponent(searchQuery)}`) + setError(null); + + fetch(`/search?query=${encodeURIComponent(searchQuery)}`, { signal }) .then(response => { if (!response.ok) { throw new Error('Network response was not ok'); } return response.json(); }) .then(data => { setTasks(data); setLoading(false); }) .catch(error => { - setError(error.message); + if (error.name === 'AbortError') return; + setError(error.message || 'Request failed'); setLoading(false); }); -}, [searchQuery]); // Depend on searchQuery + return () => controller.abort(); +}, [searchQuery]); + Apply / Chat Suggestion importance[1-10]: 9 __ Why: This suggestion correctly identifies a potential race condition and proposes the standard solution using AbortController to prevent stale data from being displayed, which is a critical improvement for this component.	High
General	Keep UI usable on errors Display a non-blocking error message instead of returning early so the search input remains accessible for recovery. Also reset error before each request to avoid showing stale errors during new loads. graphite-demo/frontend.jsx [32-34] const [error, setError] = useState(null); const [searchQuery, setSearchQuery] = useState(''); ... -if (error) { - return <div>Error: {error}</div>; -} +return ( + <div> + <h2>Task Search</h2> + <input + type="text" + placeholder="Search tasks..." + value={searchQuery} + onChange={(e) => setSearchQuery(e.target.value)} + /> + {loading && <div>Loading...</div>} + {error && <div role="alert">Error: {error}</div>} + <ul> + {tasks.map(task => ( + <li key={task.id}> + <p>{task.description}</p> + </li> + ))} + </ul> + </div> +); [To ensure code accuracy, apply this suggestion manually] Suggestion importance[1-10]: 8 __ Why: The suggestion correctly points out that the current error handling provides a poor user experience by blocking the UI, and the proposed change makes the component more resilient and user-friendly.	Medium
	Debounce search input updates Debounce the query updates to avoid firing a network request on every keystroke, which can overwhelm the backend and cause janky UX. Apply a short delay before updating searchQuery. graphite-demo/frontend.jsx [39-44] +const [rawQuery, setRawQuery] = useState(''); +const [searchQuery, setSearchQuery] = useState(''); + +useEffect(() => { + const id = setTimeout(() => setSearchQuery(rawQuery), 300); + return () => clearTimeout(id); +}, [rawQuery]); + +... + <input type="text" placeholder="Search tasks..." - value={searchQuery} - onChange={(e) => setSearchQuery(e.target.value)} + value={rawQuery} + onChange={(e) => setRawQuery(e.target.value)} /> [To ensure code accuracy, apply this suggestion manually] Suggestion importance[1-10]: 8 __ Why: This suggestion correctly identifies a performance issue and proposes debouncing the input to prevent excessive API calls, which is a crucial optimization for both frontend and backend performance.	Medium
Update

[cursor]

Cursor Bugbot has reviewed your changes and found 3 potential issues.

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[cursor]

Error state not cleared after successful fetch

Medium Severity

When a fetch succeeds, the success handler sets tasks and loading but never resets error to null. If a previous request failed and set an error, all subsequent successful requests will still display the error screen because the if (error) check on line 32 returns early with the stale error message.

 

[cursor]

Race condition with out-of-order API responses

Medium Severity

Each keystroke triggers a new API call without canceling previous requests. If responses return out of order (e.g., a slow response for "a" arrives after a fast response for "ab"), stale results overwrite the correct ones, causing the displayed tasks to not match the current searchQuery.

 

[cursor]

Error state hides input, preventing user recovery

Medium Severity

When an error occurs, the early return on line 32-34 renders only the error message and completely hides the search input. Since the input is hidden, users cannot modify searchQuery to trigger a new fetch attempt. The component becomes permanently stuck in the error state with no recovery path for the user other than remounting the entire component.