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Fix chatbot error handling: specific error messages and login loop fix #746

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Fix chatbot error handling: specific error messages and login loop fix #746

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2618e6f
Fix chatbot error handling: specific error messages and login loop fix
PRAteek-singHWY Feb 16, 2026
f153cda
Merge upstream/main into fix-chatbot-error-handling-v2 and resolve ch…
PRAteek-singHWY Feb 16, 2026
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34 changes: 28 additions & 6 deletions application/frontend/src/pages/chatbot/chatbot.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ import { oneLight } from 'react-syntax-highlighter/dist/esm/styles/prism';
import { Button, Container, Form, GridRow, Header, Icon } from 'semantic-ui-react';
import { Grid } from 'semantic-ui-react';

import { LoadingAndErrorIndicator } from '../../components/LoadingAndErrorIndicator';

import { useEnvironment } from '../../hooks';
import { Document } from '../../types';

Expand Down Expand Up @@ -93,11 +93,17 @@ export const Chatbot = () => {
})
.catch((error) => {
console.error('Error checking if user is logged in:', error);
setError(error);
setError(error instanceof Error ? error.message : 'Network error checking login status');
setLoading(false);
});
}

useEffect(() => {
if (user === '') {
login();
}
}, []);

function processResponse(response: string) {
const responses = response.split('```');
const res: JSX.Element[] = [];
Expand Down Expand Up @@ -148,7 +154,22 @@ export const Chatbot = () => {
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ prompt: currentTerm }),
})
.then((response) => response.json())
.then(async (response) => {
if (!response.ok) {
const text = await response.text();
let errorMessage = response.statusText;
try {
const json = JSON.parse(text);
if (json.error) errorMessage = json.error;
else if (json.message) errorMessage = json.message;
} catch (e) {
// not json, use text if available
if (text) errorMessage = text;
}
throw new Error(errorMessage || `Error ${response.status}`);
}
return response.json();
})
.then((data) => {
setLoading(false);
setError('');
Expand All @@ -168,7 +189,7 @@ export const Chatbot = () => {
})
.catch((error) => {
console.error('Error fetching answer:', error);
setError(error);
setError(error instanceof Error ? error.message : 'An unexpected network error occurred');
setLoading(false);
});
}
Expand All @@ -193,7 +214,7 @@ export const Chatbot = () => {

return (
<>
{user !== '' ? null : login()}
{/* user login check moved to useEffect */}

<Grid textAlign="center" verticalAlign="middle" className="chatbot-layout">
<Grid.Column>
Expand All @@ -207,7 +228,8 @@ export const Chatbot = () => {
{' '}
{error && (
<div className="ui negative message">
<div className="header">Document could not be loaded</div>
<div className="header">Error</div>
<p>{error}</p>
</div>
)}
<div className="chat-messages" ref={messagesContainerRef}>
Expand Down