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feat(firebaseai): server prompt chat and function calling #17972

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feat(firebaseai): server prompt chat and function calling #17972

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183a651
add chat and function back to server prompt template
cynthiajoan Jan 26, 2026
20e2769
auto function calling for server prompt template
cynthiajoan Jan 26, 2026
224570a
Merge branch 'main' into firebaseai/server_prompt_session_function
cynthiajoan Feb 12, 2026
be55d7c
update with api decision
cynthiajoan Feb 13, 2026
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37 changes: 2 additions & 35 deletions packages/firebase_ai/firebase_ai/example/lib/pages/function_calling_page.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
import 'package:flutter/material.dart';
import 'package:firebase_ai/firebase_ai.dart';
import 'package:firebase_auth/firebase_auth.dart';
import '../utils/function_call_utils.dart';
import '../widgets/message_widget.dart';

class FunctionCallingPage extends StatefulWidget {
Expand All @@ -31,13 +32,6 @@ class FunctionCallingPage extends StatefulWidget {
State<FunctionCallingPage> createState() => _FunctionCallingPageState();
}

class Location {
final String city;
final String state;

Location(this.city, this.state);
}

class _FunctionCallingPageState extends State<FunctionCallingPage> {
late GenerativeModel _functionCallModel;
late GenerativeModel _autoFunctionCallModel;
Expand Down Expand Up @@ -76,7 +70,7 @@ class _FunctionCallingPageState extends State<FunctionCallingPage> {
'The date for which to get the weather. Date must be in the format: YYYY-MM-DD.',
),
},
callable: _fetchWeatherCallable,
callable: fetchWeatherCallable,
);
_autoFindRestaurantsTool = AutoFunctionDeclaration(
name: 'findRestaurants',
Expand Down Expand Up @@ -148,16 +142,6 @@ class _FunctionCallingPageState extends State<FunctionCallingPage> {
};
}

Future<Map<String, Object?>> _fetchWeatherCallable(
Map<String, Object?> args,
) async {
final locationData = args['location']! as Map<String, Object?>;
final city = locationData['city']! as String;
final state = locationData['state']! as String;
final date = args['date']! as String;
return fetchWeather(Location(city, state), date);
}

void _initializeModel() {
final generationConfig = GenerationConfig(
thinkingConfig: _enableThinking
Expand Down Expand Up @@ -204,23 +188,6 @@ class _FunctionCallingPageState extends State<FunctionCallingPage> {
);
}

// This is a hypothetical API to return a fake weather data collection for
// certain location
Future<Map<String, Object?>> fetchWeather(
Location location,
String date,
) async {
// TODO(developer): Call a real weather API.
// Mock response from the API. In developer live code this would call the
// external API and return what that API returns.
final apiResponse = {
'temperature': 38,
'chancePrecipitation': '56%',
'cloudConditions': 'partly-cloudy',
};
return apiResponse;
}

/// Actual function to demonstrate the function calling feature.
final fetchWeatherTool = FunctionDeclaration(
'fetchWeather',
Expand Down
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