feat: implement real-time event streaming #7
Conversation
📝 WalkthroughWalkthroughThis update adds a new environment variable ( Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant WS_Route as "API WS Route"
participant WS_Server as "Native WS Server"
Client->>WS_Route: Connect (includes topic & API_KEY)
WS_Route->>WS_Server: Establish native connection (convert URL)
WS_Server-->>WS_Route: Confirm connection
WS_Route-->>Client: Notify connection established
Client->>WS_Route: Send message
WS_Route->>WS_Server: Forward message
WS_Server-->>WS_Route: Return response
WS_Route-->>Client: Forward response
Client->>WS_Route: Close connection
WS_Route->>WS_Server: Close native connection
WS_Server-->>WS_Route: Confirm closure
WS_Route-->>Client: Notify closure
sequenceDiagram
participant EventsPage as "EventsPage Component"
participant WS_Route as "API WS Route"
EventsPage->>WS_Route: Open WebSocket connection
WS_Route-->>EventsPage: Confirm connection
EventsPage->>EventsPage: Update status to "Connected"
WS_Route-->>EventsPage: Send event updates
EventsPage->>EventsPage: Parse and update UI
alt On connection error or close
EventsPage->>EventsPage: Update to "Disconnected" or "Error"
EventsPage->>WS_Route: Attempt reconnection after delay
end
✨ Finishing Touches
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.env.example(1 hunks)package.json(3 hunks)src/app/api/ws/[topic]/socket/route.ts(1 hunks)src/app/events/page.tsx(1 hunks)
🔇 Additional comments (1)
package.json (1)
34-35:❌ Incorrect review comment
Update React version.
React version 19.0.0 is outdated and might have compatibility issues with other dependencies.
🌐 Web query:
What is the latest stable version of React?💡 Result:
The latest stable version of React is 19.0.0, released on December 5, 2024[1][3][4][5]. This version introduced major features like Actions, new hooks (
useActionState,useFormStatus,useOptimistic), Server Components/Server Actions, and improved Context API[3][5].Key details about React 19:
- Requires the New JSX Transform for optimizations like ref-as-prop support[5]
- Removed deprecated APIs including string refs and legacy context[5]
- Added error handling improvements through
onUncaughtError/onCaughtErrorroot methods[5]- Introduced pre-warming for Suspense trees and new static DOM APIs[4]
Developers are advised to upgrade via React's official migration guide[4], first testing with React 18.3.x to identify compatibility issues before moving to v19[1][5]. The previous long-term support version was React 18 (last update: 18.3.1 in April 2024)[1][5].
Citations:
- 1: https://endoflife.date/react
- 2: https://reactnative.dev/versions
- 3: https://en.wikipedia.org/wiki/React_(software)
- 4: https://react.dev/blog/2024/12/05/react-19
- 5: https://github.com/facebook/react/releases
- 6: https://react.dev/versions
- 7: https://legacy.reactjs.org/versions/
- 8: https://www.npmjs.com/package/react?activeTab=versions
- 9: https://www.npmjs.com/package/react
React version is up-to-date.
The specified"react": "19.0.0"and"react-dom": "19.0.0"in yourpackage.jsonare already aligned with the latest stable release of React (v19.0.0). The suggestion to update the version stems from outdated information. No changes to the React version are needed.Likely an incorrect or invalid review comment.
| export function SOCKET( | ||
| client: import('ws').WebSocket, | ||
| request: import('http').IncomingMessage, | ||
| server: import('ws').WebSocketServer, | ||
| { params }: { params: { topic: string } } | ||
| ) { |
There was a problem hiding this comment.
Add input validation for topic parameter.
The topic parameter is used directly without validation, which could lead to security vulnerabilities.
Add input validation to prevent injection attacks and ensure the topic follows expected format:
export function SOCKET(
client: import('ws').WebSocket,
request: import('http').IncomingMessage,
server: import('ws').WebSocketServer,
{ params }: { params: { topic: string } }
) {
+ // Validate topic parameter
+ if (!/^[a-zA-Z0-9_-]+$/.test(params.topic)) {
+ client.close(1008, 'Invalid topic format');
+ return;
+ }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| export function SOCKET( | |
| client: import('ws').WebSocket, | |
| request: import('http').IncomingMessage, | |
| server: import('ws').WebSocketServer, | |
| { params }: { params: { topic: string } } | |
| ) { | |
| export function SOCKET( | |
| client: import('ws').WebSocket, | |
| request: import('http').IncomingMessage, | |
| server: import('ws').WebSocketServer, | |
| { params }: { params: { topic: string } } | |
| ) { | |
| // Validate topic parameter | |
| if (!/^[a-zA-Z0-9_-]+$/.test(params.topic)) { | |
| client.close(1008, 'Invalid topic format'); | |
| return; | |
| } | |
| // ... rest of the function implementation | |
| } |
| const nativeWebSocket = new WebSocket(`${websocketUrl}/api/v1/ws/${params.topic}?api_key=${apiKey}`) | ||
|
|
||
| client.onmessage = (message) => { | ||
| nativeWebSocket.send(message.data.toString()) | ||
| } | ||
|
|
||
| nativeWebSocket.onmessage = (message) => { | ||
| client.send(message.data) | ||
| } |
There was a problem hiding this comment.
Implement error handling for WebSocket connection.
The native WebSocket connection lacks proper error handling for connection failures and invalid API key responses.
Add error handling for the native WebSocket connection:
- const nativeWebSocket = new WebSocket(`${websocketUrl}/api/v1/ws/${params.topic}?api_key=${apiKey}`)
+ const nativeWebSocket = new WebSocket(`${websocketUrl}/api/v1/ws/${params.topic}?api_key=${apiKey}`)
+
+ // Add connection timeout
+ const connectionTimeout = setTimeout(() => {
+ if (nativeWebSocket.readyState !== WebSocket.OPEN) {
+ nativeWebSocket.close();
+ client.close(1006, 'Connection timeout');
+ }
+ }, 5000);
+
+ nativeWebSocket.onopen = () => {
+ clearTimeout(connectionTimeout);
+ }
client.onmessage = (message) => {
+ if (nativeWebSocket.readyState !== WebSocket.OPEN) {
+ client.close(1006, 'Backend connection lost');
+ return;
+ }
nativeWebSocket.send(message.data.toString())
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const nativeWebSocket = new WebSocket(`${websocketUrl}/api/v1/ws/${params.topic}?api_key=${apiKey}`) | |
| client.onmessage = (message) => { | |
| nativeWebSocket.send(message.data.toString()) | |
| } | |
| nativeWebSocket.onmessage = (message) => { | |
| client.send(message.data) | |
| } | |
| const nativeWebSocket = new WebSocket(`${websocketUrl}/api/v1/ws/${params.topic}?api_key=${apiKey}`) | |
| // Add connection timeout | |
| const connectionTimeout = setTimeout(() => { | |
| if (nativeWebSocket.readyState !== WebSocket.OPEN) { | |
| nativeWebSocket.close(); | |
| client.close(1006, 'Connection timeout'); | |
| } | |
| }, 5000); | |
| nativeWebSocket.onopen = () => { | |
| clearTimeout(connectionTimeout); | |
| } | |
| client.onmessage = (message) => { | |
| if (nativeWebSocket.readyState !== WebSocket.OPEN) { | |
| client.close(1006, 'Backend connection lost'); | |
| return; | |
| } | |
| nativeWebSocket.send(message.data.toString()) | |
| } | |
| nativeWebSocket.onmessage = (message) => { | |
| client.send(message.data) | |
| } |
| nativeWebSocket.onerror = (error) => { | ||
| console.error('WebSocket error:', error) | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Enhance error handling and logging.
The error handling is basic and might miss important error details.
Improve error handling with more detailed logging:
nativeWebSocket.onerror = (error) => {
- console.error('WebSocket error:', error)
+ const errorMessage = error instanceof Error ? error.message : 'Unknown error';
+ console.error('WebSocket error:', {
+ error: errorMessage,
+ topic: params.topic,
+ timestamp: new Date().toISOString()
+ });
+ client.close(1006, errorMessage);
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| nativeWebSocket.onerror = (error) => { | |
| console.error('WebSocket error:', error) | |
| } | |
| nativeWebSocket.onerror = (error) => { | |
| const errorMessage = error instanceof Error ? error.message : 'Unknown error'; | |
| console.error('WebSocket error:', { | |
| error: errorMessage, | |
| topic: params.topic, | |
| timestamp: new Date().toISOString() | |
| }); | |
| client.close(1006, errorMessage); | |
| } |
src/app/events/page.tsx
Outdated
| websocket.onmessage = (event) => { | ||
| const data = JSON.parse(event.data) | ||
| setEvents(data.data) | ||
| } |
There was a problem hiding this comment.
Add error handling for JSON parsing.
JSON parsing errors are not handled, which could crash the application.
Add error handling for JSON parsing:
websocket.onmessage = (event) => {
+ try {
const data = JSON.parse(event.data)
setEvents(data.data)
+ } catch (error) {
+ console.error('Failed to parse WebSocket message:', error);
+ setStatus('Error');
+ }
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| websocket.onmessage = (event) => { | |
| const data = JSON.parse(event.data) | |
| setEvents(data.data) | |
| } | |
| websocket.onmessage = (event) => { | |
| try { | |
| const data = JSON.parse(event.data) | |
| setEvents(data.data) | |
| } catch (error) { | |
| console.error('Failed to parse WebSocket message:', error); | |
| setStatus('Error'); | |
| } | |
| } |
src/app/events/page.tsx
Outdated
| websocket.onclose = () => { | ||
| setStatus('Disconnected') | ||
| console.log('Disconnected from WebSocket') | ||
|
|
||
| // Attempt to reconnect after 3 seconds | ||
| setTimeout(() => { | ||
| setStatus('Reconnecting...') | ||
| }, 3000) | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Improve reconnection logic.
The current reconnection logic is incomplete and might lead to infinite reconnection attempts.
Implement a more robust reconnection strategy:
+ const [reconnectAttempts, setReconnectAttempts] = useState(0);
+ const MAX_RECONNECT_ATTEMPTS = 5;
+
websocket.onclose = () => {
setStatus('Disconnected')
console.log('Disconnected from WebSocket')
- // Attempt to reconnect after 3 seconds
+ if (reconnectAttempts < MAX_RECONNECT_ATTEMPTS) {
+ const delay = Math.min(1000 * Math.pow(2, reconnectAttempts), 30000);
setTimeout(() => {
setStatus('Reconnecting...')
- }, 3000)
+ setReconnectAttempts(prev => prev + 1);
+ // Trigger reconnection here
+ }, delay)
+ } else {
+ setStatus('Connection Failed');
+ console.error('Max reconnection attempts reached');
+ }
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| websocket.onclose = () => { | |
| setStatus('Disconnected') | |
| console.log('Disconnected from WebSocket') | |
| // Attempt to reconnect after 3 seconds | |
| setTimeout(() => { | |
| setStatus('Reconnecting...') | |
| }, 3000) | |
| } | |
| const [reconnectAttempts, setReconnectAttempts] = useState(0); | |
| const MAX_RECONNECT_ATTEMPTS = 5; | |
| websocket.onclose = () => { | |
| setStatus('Disconnected') | |
| console.log('Disconnected from WebSocket') | |
| if (reconnectAttempts < MAX_RECONNECT_ATTEMPTS) { | |
| const delay = Math.min(1000 * Math.pow(2, reconnectAttempts), 30000); | |
| setTimeout(() => { | |
| setStatus('Reconnecting...') | |
| setReconnectAttempts(prev => prev + 1); | |
| // Trigger reconnection here | |
| }, delay) | |
| } else { | |
| setStatus('Connection Failed'); | |
| console.error('Max reconnection attempts reached'); | |
| } | |
| } |
| BACKEND_URL=http://localhost:8080 | ||
| API_KEY=1234567890 |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Strengthen API key security.
The example API key is too simple and predictable. While this is just an example file, it might lead developers to use similarly weak keys in production.
Replace with a more secure example and add guidelines:
-API_KEY=1234567890
+# API_KEY should be a secure random string of at least 32 characters
+API_KEY=example_7d4e3s2n8j9k4m5n7p9w3k4m5n7p9w3k📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| API_KEY=1234567890 | |
| # API_KEY should be a secure random string of at least 32 characters | |
| API_KEY=example_7d4e3s2n8j9k4m5n7p9w3k4m5n7p9w3k |
package.json
Outdated
| "socket.io": "^4.8.1", | ||
| "socket.io-client": "^4.8.1", |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Remove unused Socket.IO dependencies.
The implementation uses native WebSocket (ws), but Socket.IO dependencies are also included.
Remove unused Socket.IO dependencies:
- "socket.io": "^4.8.1",
- "socket.io-client": "^4.8.1",📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| "socket.io": "^4.8.1", | |
| "socket.io-client": "^4.8.1", |
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Actionable comments posted: 5
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Plan: Pro
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package.json(3 hunks)src/app/events/page.tsx(1 hunks)
🔇 Additional comments (4)
src/app/events/page.tsx (2)
49-53: Add error handling for JSON parsing.JSON parsing errors are not handled, which could crash the application.
67-72: Enhance status indicators.The status indicators could be more informative for users.
package.json (2)
14-14: Clarify the purpose of thegenerate-clientscript.The purpose and usage of the
openapi-tscommand in thegenerate-clientscript is unclear.Could you provide more information about:
- The OpenAPI specification file location?
- The generated client's purpose and usage?
- When this script should be run?
37-38: Remove unused Socket.IO dependencies.The implementation uses native WebSocket (
ws), but Socket.IO dependencies are also included.
| function getNewWebSocket() { | ||
| return new WebSocket('/api/ws/event_update/socket') | ||
| } |
There was a problem hiding this comment.
🧹 Nitpick (assertive)
Configure WebSocket URL based on environment.
The WebSocket URL is hardcoded which could cause issues in different environments (development, staging, production).
Consider using environment variables:
+const WS_URL = process.env.NEXT_PUBLIC_WS_URL || '/api/ws/event_update/socket'
+
function getNewWebSocket() {
- return new WebSocket('/api/ws/event_update/socket')
+ return new WebSocket(WS_URL)
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| function getNewWebSocket() { | |
| return new WebSocket('/api/ws/event_update/socket') | |
| } | |
| const WS_URL = process.env.NEXT_PUBLIC_WS_URL || '/api/ws/event_update/socket' | |
| function getNewWebSocket() { | |
| return new WebSocket(WS_URL) | |
| } |
| <div className='absolute top-4 right-4'> | ||
| {status === 'Connected' && <Badge variant={'secondary'}>Connected</Badge>} | ||
| {status === 'Disconnected' && <Badge variant={'destructive'}>Disconnected</Badge>} | ||
| {status === 'Reconnecting...' && <Badge variant={'gray'}>Reconnecting...</Badge>} | ||
| {status === 'Error' && <Badge variant={'destructive'}>Error</Badge>} | ||
| </div> |
There was a problem hiding this comment.
🧹 Nitpick (assertive)
Add initial connecting state.
The component lacks a visual indicator for the initial connection attempt.
Add a connecting state:
<div className='absolute top-4 right-4'>
+ {status === 'Connecting...' && (
+ <Badge variant={'secondary'}>
+ <span className="animate-pulse">Connecting...</span>
+ </Badge>
+ )}
{status === 'Connected' && <Badge variant={'secondary'}>Connected</Badge>}
{status === 'Disconnected' && <Badge variant={'destructive'}>Disconnected</Badge>}
{status === 'Reconnecting...' && <Badge variant={'gray'}>Reconnecting...</Badge>}
{status === 'Error' && <Badge variant={'destructive'}>Error</Badge>}
</div>📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| <div className='absolute top-4 right-4'> | |
| {status === 'Connected' && <Badge variant={'secondary'}>Connected</Badge>} | |
| {status === 'Disconnected' && <Badge variant={'destructive'}>Disconnected</Badge>} | |
| {status === 'Reconnecting...' && <Badge variant={'gray'}>Reconnecting...</Badge>} | |
| {status === 'Error' && <Badge variant={'destructive'}>Error</Badge>} | |
| </div> | |
| <div className='absolute top-4 right-4'> | |
| {status === 'Connecting...' && ( | |
| <Badge variant={'secondary'}> | |
| <span className="animate-pulse">Connecting...</span> | |
| </Badge> | |
| )} | |
| {status === 'Connected' && <Badge variant={'secondary'}>Connected</Badge>} | |
| {status === 'Disconnected' && <Badge variant={'destructive'}>Disconnected</Badge>} | |
| {status === 'Reconnecting...' && <Badge variant={'gray'}>Reconnecting...</Badge>} | |
| {status === 'Error' && <Badge variant={'destructive'}>Error</Badge>} | |
| </div> |
| return () => { | ||
| if (websocket) { | ||
| websocket.close() | ||
| } | ||
| } |
There was a problem hiding this comment.
🧹 Nitpick (assertive)
Enhance WebSocket cleanup.
The cleanup function could be more robust by handling additional edge cases.
Consider enhancing the cleanup:
return () => {
if (websocket) {
+ // Remove all event listeners to prevent memory leaks
+ websocket.onclose = null;
+ websocket.onerror = null;
+ websocket.onmessage = null;
+ websocket.onopen = null;
+
+ // Only close if the connection is still open
+ if (websocket.readyState === WebSocket.OPEN) {
websocket.close()
+ }
}
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| return () => { | |
| if (websocket) { | |
| websocket.close() | |
| } | |
| } | |
| return () => { | |
| if (websocket) { | |
| // Remove all event listeners to prevent memory leaks | |
| websocket.onclose = null; | |
| websocket.onerror = null; | |
| websocket.onmessage = null; | |
| websocket.onopen = null; | |
| // Only close if the connection is still open | |
| if (websocket.readyState === WebSocket.OPEN) { | |
| websocket.close() | |
| } | |
| } | |
| } |
| <ul ref={itemsRef} className='flex flex-wrap space-y-4 space-x-4'> | ||
| {value.map((event) => ( | ||
| <li key={event} className='list-none'> | ||
| <div className='rounded-lg border-2 border-black p-4 dark:border-white'> | ||
| <p>{event}</p> | ||
| </div> | ||
| </li> | ||
| ))} | ||
| </ul> |
There was a problem hiding this comment.
🧹 Nitpick (assertive)
Enhance accessibility.
The list elements could benefit from improved accessibility attributes.
Add ARIA attributes and semantic markup:
-<ul ref={itemsRef} className='flex flex-wrap space-y-4 space-x-4'>
+<ul ref={itemsRef}
+ className='flex flex-wrap space-y-4 space-x-4'
+ role="list"
+ aria-label={`Events for ${key}`}>
{value.map((event) => (
- <li key={event} className='list-none'>
+ <li key={event}
+ className='list-none'
+ role="listitem">
<div className='rounded-lg border-2 border-black p-4 dark:border-white'>
- <p>{event}</p>
+ <p role="text">{event}</p>
</div>
</li>
))}
</ul>Committable suggestion skipped: line range outside the PR's diff.
| }, | ||
| "dependencies": { | ||
| "@formkit/auto-animate": "^0.8.2", |
There was a problem hiding this comment.
🧹 Nitpick (assertive)
Use more specific version constraints.
The caret (^) version range could lead to unexpected breaking changes.
Consider using exact versions or tilde (~) for minor updates:
- "@formkit/auto-animate": "^0.8.2",
- "@leo1305/custom-next-ws": "^1.0.0",
- "@types/ws": "^8.5.14",
- "ws": "^8.18.0",
+ "@formkit/auto-animate": "~0.8.2",
+ "@leo1305/custom-next-ws": "1.0.0",
+ "@types/ws": "~8.5.14",
+ "ws": "~8.18.0",Also applies to: 20-20, 26-26, 42-42
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Actionable comments posted: 7
🔭 Outside diff range comments (1)
.env.example (1)
1-4: 🧹 Nitpick (assertive)Add documentation for environment variables.
The environment variables lack descriptions and validation rules.
Add documentation for each variable:
+# Database connection URL POSTGRES_URL=postgres://postgres:postgres@localhost:5432/forge + +# Backend service URL (required) +# Format: http://hostname:port BACKEND_URL=http://localhost:8080 + +# API key for WebSocket authentication (required) +# Must be a secure random string of at least 32 characters API_KEY=1234567890
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.env.example(1 hunks)package.json(1 hunks)src/app/api/ws/[topic]/socket/route.ts(1 hunks)src/app/events/page.tsx(1 hunks)
| server: import('ws').WebSocketServer, | ||
| { params }: { params: { topic: string } } | ||
| ) { | ||
| console.log('A client connected') |
There was a problem hiding this comment.
🧹 Nitpick (assertive)
Enhance logging with structured data.
Basic console logging doesn't provide enough context for production monitoring.
Add structured logging with relevant metadata:
- console.log('A client connected')
+ console.log('WebSocket client connected', {
+ topic: params.topic,
+ timestamp: new Date().toISOString(),
+ clientId: request.headers['x-client-id'] || 'unknown'
+ })📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| console.log('A client connected') | |
| console.log('WebSocket client connected', { | |
| topic: params.topic, | |
| timestamp: new Date().toISOString(), | |
| clientId: request.headers['x-client-id'] || 'unknown' | |
| }) |
| client.onmessage = (message) => { | ||
| nativeWebSocket.send(message.data.toString()) | ||
| } |
There was a problem hiding this comment.
Add message size validation.
The code forwards messages without validating their size, which could lead to memory issues.
Add message size validation:
client.onmessage = (message) => {
+ const MAX_MESSAGE_SIZE = 1024 * 1024; // 1MB
+ if (message.data.length > MAX_MESSAGE_SIZE) {
+ client.close(1009, 'Message too large');
+ return;
+ }
nativeWebSocket.send(message.data.toString())
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| client.onmessage = (message) => { | |
| nativeWebSocket.send(message.data.toString()) | |
| } | |
| client.onmessage = (message) => { | |
| const MAX_MESSAGE_SIZE = 1024 * 1024; // 1MB | |
| if (message.data.length > MAX_MESSAGE_SIZE) { | |
| client.close(1009, 'Message too large'); | |
| return; | |
| } | |
| nativeWebSocket.send(message.data.toString()) | |
| } |
| const websocketUrl = (env.BACKEND_URL || 'http://localhost:8080').replace(/^http/, 'ws') | ||
| const apiKey = env.API_KEY |
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Add validation for required environment variables.
The code assumes BACKEND_URL and API_KEY environment variables are available but doesn't validate their presence.
Add environment variable validation:
const websocketUrl = (env.BACKEND_URL || 'http://localhost:8080').replace(/^http/, 'ws')
-const apiKey = env.API_KEY
+const apiKey = env.API_KEY
+if (!apiKey) {
+ throw new Error('API_KEY environment variable is required')
+}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const websocketUrl = (env.BACKEND_URL || 'http://localhost:8080').replace(/^http/, 'ws') | |
| const apiKey = env.API_KEY | |
| const websocketUrl = (env.BACKEND_URL || 'http://localhost:8080').replace(/^http/, 'ws') | |
| const apiKey = env.API_KEY | |
| if (!apiKey) { | |
| throw new Error('API_KEY environment variable is required') | |
| } |
| const [events, setEvents] = useState<EventData | undefined>() | ||
| const [status, setStatus] = useState('Disconnected') | ||
| const [ws, setWs] = useState<WebSocket | undefined>() |
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🧹 Nitpick (assertive)
Consider using a reducer for complex state management.
Multiple related state variables could be better managed using useReducer.
Consider refactoring to use useReducer:
- const [events, setEvents] = useState<EventData | undefined>()
- const [status, setStatus] = useState('Disconnected')
- const [ws, setWs] = useState<WebSocket | undefined>()
+ const [state, dispatch] = useReducer(reducer, {
+ events: undefined,
+ status: 'Disconnected',
+ ws: undefined
+ })Committable suggestion skipped: line range outside the PR's diff.
| {events === undefined && <h1 className='text-xl font-bold'>Loading...</h1>} | ||
|
|
||
| {events === null && <h1 className='text-xl font-bold text-red-600'>Error</h1>} |
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🛠️ Refactor suggestion
Add loading state timeout.
The loading state could persist indefinitely if the WebSocket connection fails.
Add a timeout for the loading state:
+ const LOADING_TIMEOUT = 10000; // 10 seconds
+ useEffect(() => {
+ if (events === undefined) {
+ const timer = setTimeout(() => {
+ setStatus('Error');
+ setEvents(null);
+ }, LOADING_TIMEOUT);
+ return () => clearTimeout(timer);
+ }
+ }, [events]);
+
return (
<>
<div className='container mx-auto p-6'>
{events === undefined && <h1 className='text-xl font-bold'>Loading...</h1>}
{events === null && <h1 className='text-xl font-bold text-red-600'>Error</h1>}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| {events === undefined && <h1 className='text-xl font-bold'>Loading...</h1>} | |
| {events === null && <h1 className='text-xl font-bold text-red-600'>Error</h1>} | |
| const LOADING_TIMEOUT = 10000; // 10 seconds | |
| useEffect(() => { | |
| if (events === undefined) { | |
| const timer = setTimeout(() => { | |
| setStatus('Error'); | |
| setEvents(null); | |
| }, LOADING_TIMEOUT); | |
| return () => clearTimeout(timer); | |
| } | |
| }, [events]); | |
| return ( | |
| <> | |
| <div className='container mx-auto p-6'> | |
| {events === undefined && <h1 className='text-xl font-bold'>Loading...</h1>} | |
| {events === null && <h1 className='text-xl font-bold text-red-600'>Error</h1>} | |
| {/* Other component content */} | |
| </div> | |
| </> | |
| ); |
| "devDependencies": { | ||
| "@eslint/js": "^9.19.0", | ||
| "@hey-api/openapi-ts": "^0.64.1", | ||
| "@ianvs/prettier-plugin-sort-imports": "^4.4.1", |
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🛠️ Refactor suggestion
Remove duplicate import sorting plugins.
Two different import sorting plugins are included:
- @ianvs/prettier-plugin-sort-imports
- @trivago/prettier-plugin-sort-imports
Choose one plugin to avoid conflicts:
"@hey-api/openapi-ts": "^0.64.1",
"@ianvs/prettier-plugin-sort-imports": "^4.4.1",
"@next/bundle-analyzer": "^15.1.6",
"@next/eslint-plugin-next": "^15.1.6",
- "@trivago/prettier-plugin-sort-imports": "^5.2.2",
"@types/bcryptjs": "^2.4.6",Also applies to: 53-53
| "react": "19.0.0", | ||
| "react-dom": "19.0.0", |
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❓ Verification inconclusive
Update React version to match Next.js requirements.
The React version (19.0.0) is outdated and may not be compatible with Next.js 15.
🌐 Web query:
What is the compatible React version for Next.js 15?
💡 Result:
Next.js 15's compatible React version depends on which routing system you use:
App Router
Requires React 19+ (RC or stable) due to architectural dependencies on new React features like Actions and Async Components[1][4][6]. Attempting to use React 18 with App Router will cause compatibility issues[1][6].
Pages Router
Supports React 18+ with backward compatibility maintained in Next.js 15[4][6]. This allows gradual migration paths for legacy projects[1][4].
Key Details
| Aspect | App Router | Pages Router |
|---|---|---|
| React Version | 19+ (mandatory) | 18+ (supported) |
| Stability | Requires RC/stable¹ | Fully stable |
| Mixed Usage | Not recommended² | N/A |
¹React 19 reached stable status in Next.js 15.1[5]
²Combining App Router (React 19) and Pages Router (React 18) in one project risks inconsistent behavior[4]
Migration Considerations
- New projects using App Router must adopt React 19[1][4]
- Legacy projects can stay on Pages Router + React 18 while upgrading Next.js core[4][6]
- Critical dependencies not supporting React 19 may block App Router adoption[1][6]
The architecture split reflects Vercel's strategy to push React innovations through App Router while maintaining enterprise stability via Pages Router[1][4]. Developers should choose based on project requirements: bleeding-edge features vs dependency stability[1][4].
Citations:
- 1: https://www.wisp.blog/blog/can-nextjs-15-app-router-be-used-with-react-18
- 2: https://nextjs.org/blog/next-15-rc
- 3: https://www.syncfusion.com/blogs/post/whats-new-in-next-js-15-rc
- 4: https://nextjs.org/blog/next-15
- 5: https://nextjs.org/blog/next-15-1
- 6: Can React 18 be used with Next.js version 15? vercel/next.js#72795
- 7: https://www.youtube.com/watch?v=fqabW3WRUbw
- 8: https://ui.shadcn.com/docs/react-19
- 9: https://nextjs.org/docs/app/building-your-application/upgrading/version-15
- 10: https://nextjs.org/docs/messages/react-version
React Version Compatibility – Verify Your Next.js Routing Setup
The current React version is set to 19.0.0 in package.json which aligns with Next.js 15's requirements if you are using the App Router (which mandates React 19+). However, if your project relies on the Pages Router, you should consider downgrading to React 18 to ensure optimal compatibility and stability.
- Confirm which routing system your project uses.
- If using the App Router, you can keep React 19.0.0.
- If using the Pages Router, update React to version 18.x accordingly.
Summary by CodeRabbit