findOrCreate static method

Future<TransistorAuthorizationToken> findOrCreate(String orgname, String username, [ String url = _DEFAULT_TRANSISTOR_URL ])

Returns a JSON Web Token (JWT) suitable for Authorization with the Transistor Software demo server at http://tracker.transistorsoft.com.

This token is typically provided to Config.transistorAuthorizationToken when first configuring the SDK with BackgroundGeolocation.ready.

Params

@param {String} orgname

Represents a "company" or "organization"; a container for posting locations from multiple devices to the same account. orgname is used for accessing your device results in web app, eg: http://tracker.transistorsoft.com/my-organization-name.

@param {String} username

Appended to the DeviceInfo.model as a means of creating a consistent and unique device identifier. For example:

• Pixel 3a-my-username
• A310-my-username
• iPhone 11,3-my-username

@param {String} url [http://tracker.transistorsoft.com]

The server to register with and receive authentication tokens from. Defaults to http://tracker.transistorsoft.com. If you have a local instance of background-geolocation-console running on your localhost, you would provide the ip address of your server, eg: http://192.168.0.100:9000.

---

When the SDK receives the TransistorAuthorizationToken from url, it will be cached in persistant-storage within the native code. If the SDK doesn't find a cached token on the client, it will automatically register for one from url, using the provided orgname and username. Otherwise, the cached token will be immediately returned.

Example

String orgname = "my-company-name";
String usernmae = "my-username";

// Fetch an authoriztion token from server.  The SDK will cache the received token.
TransistorAuthorizationToken token = await
  TransistorAuthorizationToken.findOrCreate(orgname, username);

BackgroundGeolocation.ready(Config(
  transistorAuthorizationToken: token
))

ℹ️ See also:

• destroy
• Config.transistorAuthorizationToken

Implementation

static Future<TransistorAuthorizationToken> findOrCreate(
    String orgname, String username,
    [String url = _DEFAULT_TRANSISTOR_URL]) async {
  Completer completer = new Completer<TransistorAuthorizationToken>();
  _methodChannel.invokeMethod(
      'getTransistorToken', [orgname, username, url]).then((dynamic data) {
    completer.complete(TransistorAuthorizationToken(data[FIELD_ACCESS_TOKEN],
        data[FIELD_REFRESH_TOKEN], data[FIELD_EXPIRES], url));
  }).catchError((error) {
    print("[TransistorAuthorizationToken findOrCreate] ERROR: $error");
    if (error.code != "403") {
      completer.complete(
          TransistorAuthorizationToken(_DUMMY_TOKEN, _DUMMY_TOKEN, -1, url));
    } else {
      throw Error(error);
    }
  });
  return completer.future as FutureOr<TransistorAuthorizationToken>;
}