aws_iot_core 0.1.0

AWS IoT Core MQTT client for Dart and Flutter: SigV4 WebSockets with Cognito credentials, re-signing on reconnect, wildcard topics and Device Shadow.

0.1.0

• Initial release.
• AwsIotClient: MQTT 3.1.1 over SigV4-signed WebSockets. Credentials are fetched and the URL re-signed on every connect and reconnect. Includes exponential backoff with jitter, one shared connection per client, and a beforeConnect hook.
• Wildcard (+, #) subscriptions with reference-counted broker subscriptions, restored after reconnects.
• Device Shadow: get, update, delete, plus delta and documents streams, for classic and named shadows.
• Sealed AwsIotException error hierarchy.
• AwsIotUrlSigner for building signed AWS IoT WebSocket URLs.