Implements Amplitude with flutter_segment package

[amplitude]

Implements Amplitude with flutter_segment package

[RicharC293]

Sometimes when i call getSessionId() return session id but in other cases return -1
Flutter doctor -v
[√] Flutter (Channel stable, 2.5.0, on Microsoft Windows [Versión 10.0.19042.1237], locale es-EC)
• Flutter version 2.5.0 at C:\src\flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 4cc385b4b8 (13 days ago), 2021-09-07 23:01:49 -0700
• Engine revision f0826da7ef
• Dart version 2.14.0

[√] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
• Android SDK at C:\Users\tipti\AppData\Local\Android\Sdk
• Platform android-30, build-tools 30.0.3
• ANDROID_HOME = C:\Users\tipti\AppData\Local\Android\Sdk
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 11.0.10+0-b96-7249189)
• All Android licenses accepted.

[√] Chrome - develop for the web
• Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[√] Android Studio (version 2020.3)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin can be installed from:
https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 11.0.10+0-b96-7249189)

[√] VS Code (version 1.60.1)
• VS Code at C:\Users\tipti\AppData\Local\Programs\Microsoft VS Code
• Flutter extension can be installed from:
https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[√] Connected device (3 available)
• LM X525 (mobile) • LMX525USUKZP5D9PE6 • android-arm • Android 10 (API 29)
• Chrome (web) • chrome • web-javascript • Google Chrome 93.0.4577.82
• Edge (web) • edge • web-javascript • Microsoft Edge 93.0.961.52

• No issues found!

Amplitude Version amplitude_flutter 3.3.0
Flutter Segment flutter_segment 3.1.2

Code to call session_id implemented

static Future<int> _getAmplitudeSessionId(User user) async {
    try {
      final Amplitude analytics =
          Amplitude.getInstance(instanceName: "client_mobile");
      analytics.setUseDynamicConfig(true);
      analytics.setServerUrl("https://api2.amplitude.com");
      analytics.init(Flavor.amplitude, userId: "${user.userId}");
      analytics.trackingSessionEvents(true);
      print(await analytics.getSessionId());
      return await analytics.getSessionId();
    } catch (err) {
      debugPrint("INITIALIZE_AMPLITUDE: $err");
      return null;
    }
  }

[yuhao900914]

Hi @RicharC293. Does the issue is when you trying to get session id from amplitude_flutter the session id always be -1? Without the implementation details, we cannot find the real cause is. May I know which version of amplitude_flutter you are using and how you get the session id?