SignalR client base on console cannot receive message from server #44617
Description
I write a SignalR server to push stock data to fronts and I write a SignalR client base on console, it cannot receive message from server, client versions:
.NET6
Microsoft.AspNetCore.SignalR.Client 6.0.10
Microsoft.Extensions.Hosting 6.0.1
Client code:
var connection = new HubConnectionBuilder().WithUrl("http://localhost:5247/stockTrade").Build();
connection.On("Receive", (StockTradeInfo message) =>
{
// ...
});
connection.Closed += ex =>
{
if (ex != null)
{
Console.WriteLine($"connection closed with an exception：{ex}");
}
else
{
Console.WriteLine("connection closed");
}
return Task.CompletedTask;
};
await connection.StartAsync();
await connection.InvokeAsync("StockTradeInfo", stockId);
IHost host = Host.CreateDefaultBuilder().Build();
host.Run();But, I can receive message use JS client:
let conn = new signalR.HubConnectionBuilder()
.withUrl("http://localhost:5247/stockTrade")
.build();
conn.start().then(() => {
console.log("connection start");
conn
.invoke("StockTradeInfo", stockId)
.then(() => console.log("send request"))
.catch(reason => console.log(reason));
});
conn.onclose(error => {
if (error !== undefined) {
console.error(error);
} else {
console.info("closed");
}
})
conn.on("receive", function (message) {
if (!message) {
return;
}
for (let data of message) {
let tr = document.getElementById(`tr-${data.stockCode}`);
if (tr === null) {
addTrElement(data);
} else {
updateTdElementValue(tr, data);
}
}
});