statsig_node_sdk_feature_gate_and_dynamic_config_quickstart.ts

1import statsig from 'statsig-node';
2
3async function quickstart() {
4  // 1. Initialize the SDK with your Secret Key
5  // You can find this in the Project Settings on the Statsig console
6  await statsig.initialize('secret-YOUR_SERVER_SECRET_KEY');
7
8  // 2. Define the user you are checking for
9  const user = {
10    userID: 'user_12345',
11    email: 'jane.doe@example.com',
12    custom: {
13      subscription_tier: 'premium',
14    },
15  };
16
17  // 3. Check if a Feature Gate is enabled for this user
18  const isEnabled = await statsig.checkGate(user, 'example_feature_gate');
19  if (isEnabled) {
20    console.log('Feature is enabled for user!');
21  } else {
22    console.log('Feature is disabled for user.');
23  }
24
25  // 4. Get a value from a Dynamic Config
26  const config = await statsig.getConfig(user, 'example_config');
27  const themeColor = config.get('theme_color', 'white'); // 'white' is the fallback
28  console.log(`The theme color is: ${themeColor}`);
29
30  // 5. Log a custom event
31  statsig.logEvent(user, 'purchase_made', 9.99, { item_id: 'book_001' });
32
33  // 6. Ensure all events are flushed before the process exits
34  await statsig.shutdown();
35}
36
37quickstart().catch((err) => {
38  console.error(err);
39});