bd8590ba9b
Polling logic was introduced due to a bug in Fuchsia's network stack which could result in the VM service attempting to start the server before the network stack was initialized. This issue should be resolved now, so this logic is no longer necessary. TEST=pkg/dartdev/test/commands/run_test.dart Change-Id: I10f185dfb1be1b0363983f3e0564d65c38c99ea8 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/235763 Reviewed-by: Ryan Macnak <rmacnak@google.com> Commit-Queue: Ben Konyi <bkonyi@google.com> |
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.. | ||
bin | ||
example | ||
lib | ||
test | ||
tool | ||
.gitignore | ||
analysis_options.yaml | ||
CHANGELOG.md | ||
dds_protocol.md | ||
LICENSE | ||
OWNERS | ||
pubspec.yaml | ||
README.md |
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 preferrable or required to communicate with DDS using server-sent events (SSE). DDS has a 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());
}