How to Create a Sports Scores and Live Updates Feature in FlutterFlow

1// functions/pollSportsScores.js
2const functions = require('firebase-functions');
3const admin = require('firebase-admin');
4const axios = require('axios');
5
6if (!admin.apps.length) admin.initializeApp();
7const db = admin.firestore();
8
9exports.pollSportsScores = functions.pubsub
10  .schedule('every 1 minutes')
11  .onRun(async () => {
12    const apiKey = functions.config().sports.api_key;
13    const baseUrl = 'https://v3.football.api-sports.io';
14    const today = new Date().toISOString().split('T')[0];
15
16    let response;
17    try {
18      response = await axios.get(`${baseUrl}/fixtures?date=${today}&status=1H-2H-HT-ET-BT`, {
19        headers: { 'x-apisports-key': apiKey },
20        timeout: 8000
21      });
22    } catch (err) {
23      console.error('Sports API error:', err.message);
24      return null;
25    }
26
27    const fixtures = response.data?.response || [];
28    if (!fixtures.length) { console.log('No live fixtures'); return null; }
29
30    // Read current Firestore scores to detect changes
31    const batch = db.batch();
32    const changeNotifications = [];
33
34    for (const fixture of fixtures) {
35      const gameRef = db.collection('games').doc(String(fixture.fixture.id));
36      const existingSnap = await gameRef.get();
37      const existing = existingSnap.data();
38
39      const homeScore = fixture.goals.home || 0;
40      const awayScore = fixture.goals.away || 0;
41
42      // Detect score change for push notification
43      if (existing && (existing.home_score !== homeScore || existing.away_score !== awayScore)) {
44        changeNotifications.push({
45          home_team_id: String(fixture.teams.home.id),
46          away_team_id: String(fixture.teams.away.id),
47          home_score: homeScore,
48          away_score: awayScore,
49          home_name: fixture.teams.home.name,
50          away_name: fixture.teams.away.name,
51        });
52      }
53
54      batch.set(gameRef, {
55        id: String(fixture.fixture.id),
56        home_team_id: String(fixture.teams.home.id),
57        away_team_id: String(fixture.teams.away.id),
58        home_team_name: fixture.teams.home.name,
59        away_team_name: fixture.teams.away.name,
60        home_team_logo: fixture.teams.home.logo,
61        away_team_logo: fixture.teams.away.logo,
62        home_score: homeScore,
63        away_score: awayScore,
64        status: fixture.fixture.status.short,
65        elapsed: fixture.fixture.status.elapsed,
66        last_updated: admin.firestore.FieldValue.serverTimestamp()
67      }, { merge: true });
68    }
69
70    await batch.commit();
71    console.log(`Updated ${fixtures.length} live games, ${changeNotifications.length} score changes`);
72
73    // Send push notifications for score changes
74    for (const change of changeNotifications) {
75      await sendScoreNotification(change);
76    }
77    return null;
78  });
79
80async function sendScoreNotification(change) {
81  // Find users who favorited either team
82  const favSnap = await db.collection('user_favorites')
83    .where('team_ids', 'array-contains-any',
84      [change.home_team_id, change.away_team_id])
85    .get();
86  if (favSnap.empty) return;
87
88  const tokens = [];
89  favSnap.docs.forEach(doc => {
90    const token = doc.data().fcm_token;
91    if (token) tokens.push(token);
92  });
93  if (!tokens.length) return;
94
95  await admin.messaging().sendMulticast({
96    tokens,
97    notification: {
98      title: `${change.home_name} ${change.home_score} - ${change.away_score} ${change.away_name}`,
99      body: 'Score update'
100    },
101    data: { type: 'score_update' }
102  });
103}

1// custom_actions/save_fcm_token.dart
2import 'package:firebase_messaging/firebase_messaging.dart';
3import 'package:cloud_firestore/cloud_firestore.dart';
4import 'package:firebase_auth/firebase_auth.dart';
5
6Future<void> saveFcmToken() async {
7  final messaging = FirebaseMessaging.instance;
8  final settings = await messaging.requestPermission();
9  if (settings.authorizationStatus != AuthorizationStatus.authorized) return;
10  final token = await messaging.getToken();
11  if (token == null) return;
12  final uid = FirebaseAuth.instance.currentUser?.uid;
13  if (uid == null) return;
14  await FirebaseFirestore.instance
15      .collection('user_favorites')
16      .doc(uid)
17      .set({'fcm_token': token}, SetOptions(merge: true));
18}