dart_meteor 4.1.0

This library make connection between meteor backend and flutter app easily. Design to work seamlessly with StreamBuilder and FutureBuilder.

4.1.0

Connection lifecycle fixes. The theme is a device that goes to sleep: the process is suspended, timers stop, and the server drops the session without the socket ever reporting an error.

Fixed:

• A missed pong left the client permanently offline. The pong timeout called disconnect(), which also disabled reconnection, so no retry was ever scheduled — the exact path a device takes when it wakes with a stale socket.
• Reconnect backoff never engaged. retryCount was reset on every connection attempt, so the computed interval was always 0s and maxRetryCount was never reached, producing a tight reconnect loop. The counter is now reset only once the server accepts the connection.
• Connecting to an unreachable server raised an unhandled exception that could terminate the application, because WebSocketChannel.connect fails asynchronously rather than throwing. The client now awaits ready and routes the failure into its normal retry path.
• A method call that was in flight when the connection dropped never completed. Pending calls are now completed with the new MeteorConnectionError.
• Subscriptions were re-sent before the login token was resumed, so publications depending on this.userId re-ran unauthenticated after every reconnect. Re-subscription now waits for the onReconnect callbacks.
• disconnect() did not cancel a pending reconnect timer, so an explicit disconnect could be undone by a retry that was already scheduled.
• status() emitted the client's own mutable status object, so a fast transition could be misread by subscribers. Each event is now a snapshot.

Added:

• meteor.notifyAppPaused() / meteor.notifyAppResumed() and meteor.checkLiveness(). On resume the client compares the wall clock against the last message received and replaces a stale connection immediately, instead of waiting for a ping to time out. The package stays pure Dart; the Flutter WidgetsBindingObserver glue is a few lines shown in the README and in example/.
• Configurable pingInterval, pongTimeout, maxRetryInterval and stalenessThreshold on MeteorClient.connect and DdpClient.
• test/lifecycle_test.dart, a server-free regression suite for the above; the mock DDP server moved to test/mock_ddp_server.dart so both suites share it.

Behaviour changes to be aware of when upgrading:

• await meteor.call(...) can now throw MeteorConnectionError where it previously hung forever. In-flight calls are not retried automatically, since methods are not necessarily idempotent.
• Reconnect attempts are spaced out rather than immediate.
• onReconnect callbacks may now return a Future, which is awaited before subscriptions are re-sent.

4.0.0

• Support for the latest Dart/Flutter releases (tested with Dart 3.13). The minimum SDK is now Dart 3.6.
• Verified compatibility with Meteor 3.x servers, including Meteor 3.5.1 (DDP protocol version 1, SHA-256 password login, EJSON $date handling).
• Web platform support from the 4.0.0 betas via web_socket_channel is included.
• Added a standalone DDP protocol test suite (test/ddp_mock_server_test.dart) that runs without a Meteor server or docker.
• Updated dependencies and lint rules (lints 6).
• BREAKING: DdpClient.PING_SEC_INTERVAL and DdpClient.PONG_WITHIN_SEC were renamed to the static constants DdpClient.pingIntervalSeconds and DdpClient.pongTimeoutSeconds.

4.0.0-beta.1, 4.0.0-beta.2

• Adding Web platform support by using the web_socket_channel.

3.0.0

• BREAKING CHANGE. The meteor.collection('collectionName') streams are now hasData == true and have an empty map at the beginning.

2.1.4

• Acessing to serverId and sessionId

2.1.3

• Resend subscription packets on reconnection.

2.1.2

• Return MeteorClientLoginResult on logoutOtherClients.

2.1.1

• Return null if no current value presents for the 'currentValue'.

2.1.0

• Fix a major bug on escaping DateTime when doing method call and subscribe.

2.0.4

• Fix bug on meteor.user() does not set back to null after user has been logged out.

2.0.3

• Separated login function.

2.0.2

• Fix bugs on connecting to Meteor 2.x.x and on logout function.

2.0.1

• Fix a $date bug when parsing an array result from methods/collections.

2.0.0

• Null safety and some API changes.

1.1.2

• Lower crypto package version to match the flutter_test.

1.1.1

• Allows both int and String for MeteorError.error

1.1.0

• Pin rxdart to 0.24.1 and crypto to 2.1.5.

1.0.8

• Allow passing email to loginWithPassword.

1.0.7

• Don't use this release

1.0.5 1.0.6

• Pin rxdart version to 0.22.6

1.0.1 1.0.4

• Update README and example

1.0.0 1.0.3

• Initial version.