Chingjun Lau
1850fbbb3a
A subsequent CL will be sent to change this to String, after flutter_tools is migrated to pass a String instead of a Uri. BazelUriConverter treats google3WorkspaceRoot as a String. Passing a Uri causes the debug adapter to pass `--google3-workspace-root=file:///` when launching DDS, making it fail to resolve the uris. Bug: b/364942683 Change-Id: I46f366bb2308a107a68e63445138e071432e45de Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/383901 Reviewed-by: Ben Konyi <bkonyi@google.com> Auto-Submit: Chingjun Lau <chingjun@google.com> Commit-Queue: Ben Konyi <bkonyi@google.com>
A package used to spawn the Dart Developer Service (DDS), which is used to communicate with a Dart VM Service instance and provide extended functionality to the core VM Service Protocol.
Functionality
Existing VM Service clients can issue both HTTP, websocket, and SSE requests to a running DDS instance as if it were an instance of the VM Service itself. If a request corresponds to an RPC defined in the VM Service Protocol, DDS will forward the request and return the response from the VM Service. Requests corresponding to an RPC defined in the DDS Protocol will be handled directly by the DDS instance.
SSE Support
For certain web clients it may be preferable or required to communicate with DDS using server-sent events (SSE). DDS has an SSE handler listening for requests on /$debugHandler.
SSE and package:vm_service example
import 'package:sse/sse.dart';
import 'package:vm_service/vm_service.dart';
void main() {
// Establish connection with DDS using SSE.
final ddsChannel = SseClient('${ddsUri}\$debugHandler');
// Wait for ddsChannel to be established
await ddsChannel.onOpen.first;
// Initialize VmService using the sink and stream from ddsChannel.
final vmService = VmService(
ddsChannel.stream,
(e) => ddsChannel.sink.add(e),
);
// You're ready to query DDS and the VM service!
print(await vmService.getVersion());
}