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Demo: chat-ai-integration imporved error handling #35081

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demo-chat-ai-integration error-handling
flagmanAndrew Sep 7, 2026
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apply copilot sug
flagmanAndrew Sep 7, 2026
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fix lint
flagmanAndrew Sep 8, 2026
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2 changes: 1 addition & 1 deletion apps/demos/Demos/Chat/AIAndChatbotIntegration/Angular/app/ai/ai.service.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ export class AiService {
temperature: 0.7,
};

const response = await this.chatService.chat.completions.create(params);
const response = await this.chatService.chat.completions.create(params, { maxRetries: 0 });

@dmlvr dmlvr Sep 9, 2026 •
edited
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let's add maxRetries to the params object here and all next demos, where we have params object

const data = { choices: response.choices };

return data.choices[0].message?.content;
Expand Down
22 changes: 16 additions & 6 deletions apps/demos/Demos/Chat/AIAndChatbotIntegration/Angular/app/app.service.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -106,13 +106,23 @@ export class AppService {
this.messages.push({ role: 'assistant', content: aiResponse });
this.renderAssistantMessage(aiResponse);
}, 200);
} catch {
} catch (err: unknown) {
this.typingUsersSubject.next([]);
this.messages.pop();
this.alertLimitReached();
this.alertError(this.getErrorMessage(err));
}
}

private getErrorMessage(err: unknown): string {
if (typeof err === 'object' && err !== null) {
const e = err as { error?: { message?: unknown }; message?: unknown };
if (typeof e.error?.message === 'string') return e.error.message;
if (typeof e.message === 'string') return e.message;
}
if (typeof err === 'string') return err;
return 'Unknown error';
}

updateLastMessage(text = this.REGENERATION_TEXT) {
const items = this.dataSource.items();
const lastMessage = items.at(-1);
Expand All @@ -135,9 +145,9 @@ export class AppService {
this.dataSource.store().push([{ type: 'insert', data: message }]);
}

alertLimitReached() {
alertError(message: string) {
this.setAlerts([{
message: 'Request limit reached, try again in a minute.',
message,
}]);

setTimeout(() => {
Expand All @@ -156,9 +166,9 @@ export class AppService {

this.updateLastMessage(aiResponse);
this.messages.at(-1).content = aiResponse;
} catch {
} catch (err: unknown) {
this.updateLastMessage(this.messages.at(-1).content);
this.alertLimitReached();
this.alertError(this.getErrorMessage(err));
}
}

Expand Down
2 changes: 1 addition & 1 deletion apps/demos/Demos/Chat/AIAndChatbotIntegration/React/service.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,7 @@ export async function getAIResponse(messages: AIMessage[], delay?: number): Prom
temperature: 0.7,
};

const response = await chatService.chat.completions.create(params);
const response = await chatService.chat.completions.create(params, { maxRetries: 0 });
const data = { choices: response.choices };

if (delay) {
Expand Down
26 changes: 18 additions & 8 deletions apps/demos/Demos/Chat/AIAndChatbotIntegration/React/useApi.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,16 @@ const dataItemToMessage = (item: ChatTypes.Message): AIMessage => ({

const getMessageHistory = (): AIMessage[] => [...dataSource.items()].map(dataItemToMessage);

const getErrorMessage = (err: unknown): string => {
if (typeof err === 'object' && err !== null) {
const e = err as { error?: { message?: unknown }; message?: unknown };
if (typeof e.error?.message === 'string') return e.error.message;
if (typeof e.message === 'string') return e.message;
}
if (typeof err === 'string') return err;
return 'Unknown error';
};

export const useApi = () => {
const [alerts, setAlerts] = useState<ChatTypes.Alert[]>([]);

Expand All @@ -55,9 +65,9 @@ export const useApi = () => {
}]);
}, []);

const alertLimitReached = useCallback((): void => {
const alertError = useCallback((message: string): void => {
setAlerts([{
message: 'Request limit reached, try again in a minute.',
message,
}]);

setTimeout(() => {
Expand All @@ -77,10 +87,10 @@ export const useApi = () => {
author: assistant,
text: aiResponse,
});
} catch {
alertLimitReached();
} catch (err: unknown) {
alertError(getErrorMessage(err));
}
}, [alertLimitReached, insertMessage]);
}, [alertError, insertMessage]);

const regenerateLastAIResponse = useCallback(async (): Promise<void> => {
const messageHistory = getMessageHistory();
Expand All @@ -92,11 +102,11 @@ export const useApi = () => {
if (typeof aiResponse === 'string') {
updateLastMessageContent(aiResponse);
}
} catch {
} catch (err: unknown) {
updateLastMessageContent(messageHistory.at(-1)?.content as string);
alertLimitReached();
alertError(getErrorMessage(err));
}
}, [alertLimitReached, updateLastMessageContent]);
}, [alertError, updateLastMessageContent]);

return {
alerts,
Expand Down
2 changes: 1 addition & 1 deletion apps/demos/Demos/Chat/AIAndChatbotIntegration/ReactJs/service.js
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Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@ export async function getAIResponse(messages, delay) {
max_completion_tokens: 1000,
temperature: 0.7,
};
const response = await chatService.chat.completions.create(params);
const response = await chatService.chat.completions.create(params, { maxRetries: 0 });
const data = { choices: response.choices };
if (delay) {
await wait(delay);
Expand Down
25 changes: 17 additions & 8 deletions apps/demos/Demos/Chat/AIAndChatbotIntegration/ReactJs/useApi.js
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,15 @@ const dataItemToMessage = (item) => ({
content: item.text,
});
const getMessageHistory = () => [...dataSource.items()].map(dataItemToMessage);
const getErrorMessage = (err) => {
if (typeof err === 'object' && err !== null) {
const e = err;
if (typeof e.error?.message === 'string') return e.error.message;
if (typeof e.message === 'string') return e.message;
}
if (typeof err === 'string') return err;
return 'Unknown error';
};
export const useApi = () => {
const [alerts, setAlerts] = useState([]);
const insertMessage = useCallback((data) => {
Expand All @@ -44,10 +53,10 @@ export const useApi = () => {
},
]);
}, []);
const alertLimitReached = useCallback(() => {
const alertError = useCallback((message) => {
setAlerts([
{
message: 'Request limit reached, try again in a minute.',
message,
},
]);
setTimeout(() => {
Expand All @@ -65,11 +74,11 @@ export const useApi = () => {
author: assistant,
text: aiResponse,
});
} catch {
alertLimitReached();
} catch (err) {
alertError(getErrorMessage(err));
}
},
[alertLimitReached, insertMessage],
[alertError, insertMessage],
);
const regenerateLastAIResponse = useCallback(async () => {
const messageHistory = getMessageHistory();
Expand All @@ -79,11 +88,11 @@ export const useApi = () => {
if (typeof aiResponse === 'string') {
updateLastMessageContent(aiResponse);
}
} catch {
} catch (err) {
updateLastMessageContent(messageHistory.at(-1)?.content);
alertLimitReached();
alertError(getErrorMessage(err));
}
}, [alertLimitReached, updateLastMessageContent]);
}, [alertError, updateLastMessageContent]);
return {
alerts,
insertMessage,
Expand Down
23 changes: 16 additions & 7 deletions apps/demos/Demos/Chat/AIAndChatbotIntegration/Vue/App.vue
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Original file line number Diff line number Diff line change
Expand Up @@ -108,6 +108,16 @@ function renderAssistantMessage(text: string): void {
dataSource.store().push([{ type: 'insert', data: message }]);
}

function getErrorMessage(err: unknown): string {
if (typeof err === 'object' && err !== null) {
const e = err as { error?: { message?: unknown }; message?: unknown };
if (typeof e.error?.message === 'string') return e.error.message;
if (typeof e.message === 'string') return e.message;
}
if (typeof err === 'string') return err;
return 'Unknown error';
}

async function processMessageSending(
message: DxChatTypes.TextMessage,
event: Events.EventObject | undefined,
Expand All @@ -125,18 +135,18 @@ async function processMessageSending(
messages.push({ role: 'assistant', content: aiResponse });
renderAssistantMessage(aiResponse);
}, 200);
} catch {
} catch (err: unknown) {
typingUsers.value = [];
messages.pop();
alertLimitReached();
alertError(getErrorMessage(err));
} finally {
toggleDisabledState(false, event);
}
}

function alertLimitReached(): void {
function alertError(message: string): void {
alerts.value = [{
message: 'Request limit reached, try again in a minute.',
message,
}];

setTimeout(() => {
Expand All @@ -156,12 +166,11 @@ async function regenerate(): Promise<void> {
if (lastMessage?.content) {
lastMessage.content = aiResponse;
}
} catch {
} catch (err: unknown) {
if (lastMessage?.content) {
updateLastMessage(lastMessage.content);
}

alertLimitReached();
alertError(getErrorMessage(err));
} finally {
toggleDisabledState(false);
}
Expand Down
2 changes: 1 addition & 1 deletion apps/demos/Demos/Chat/AIAndChatbotIntegration/Vue/service.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ export async function getAIResponse(messages: AIMessage[]): Promise<AIResponse>
temperature: 0.7,
};

const response = await chatService.chat.completions.create(params as any);
const response = await chatService.chat.completions.create(params as any, { maxRetries: 0 });
const data = { choices: response.choices };

return data.choices[0].message?.content || '';
Expand Down
22 changes: 15 additions & 7 deletions apps/demos/Demos/Chat/AIAndChatbotIntegration/jQuery/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -26,16 +26,16 @@ $(() => {
temperature: 0.7,
};

const response = await chatService.chat.completions.create(params);
const response = await chatService.chat.completions.create(params, { maxRetries: 0 });
const data = { choices: response.choices };

return data.choices[0].message?.content;
}

function alertLimitReached() {
function alertError(message) {
instance.option({
alerts: [{
message: 'Request limit reached, try again in a minute.',
message,
}],
});

Expand Down Expand Up @@ -70,10 +70,14 @@ $(() => {

renderAssistantMessage(aiResponse);
}, 200);
} catch {
} catch (err) {
instance.option({ typingUsers: [] });
messages.pop();
alertLimitReached();
const errorMessage =
err.error?.message ??

@dmlvr dmlvr Sep 9, 2026 •
edited
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let's move it to getErrorMessage for consistency of demos and reuse it in line 96

err.message ??
'Unknown error';
alertError(errorMessage);
} finally {
toggleDisabledState(false, event);
}
Expand All @@ -87,9 +91,13 @@ $(() => {

updateLastMessage(aiResponse);
messages.at(-1).content = aiResponse;
} catch {
} catch (err) {
updateLastMessage(messages.at(-1).content);
alertLimitReached();
const errorMessage =
err.error?.message ??
err.message ??
'Unknown error';
alertError(errorMessage);
} finally {
toggleDisabledState(false);
}
Expand Down