Setup SignalR communication about position.
We strongly recommend using SignalR SDKs.
For negotiation we use HubConnectionBuilder. The following negotiate endpoint we provide in withUrl method:
Negotiate endpoint
https://ombori-queue-dev.azure-api.net/api/organizations/xyz/queues/c179a3a2-9fd7-4e12-96e7-19d9e957e094/positions/5387920d-dfdd-4904-8a51-3f007effcffa?userId=${userId}
userId - random guid/uuid.
let hubConnectionBuilder = new signalR.HubConnectionBuilder()
.withUrl(url, options);
const hubConnection = hubConnectionBuilder.build();
hubConnection
.start()
.then(() => console.log('Queue service connection is established'))
.catch((err) => {
console.error(err);
throw err;
});
When connection is established you need to subscribe for specific hubMethodName. In our case it is position-update:
const positionUpdateHubMethodName = 'position-update'
hubConnection.on(positionUpdateHubMethodName, (message: any) => {
const { position } = JSON.parse(message);
if (position) {
...
}
});
The message contains the following properties:
{
"position": {
"id": "5387920d-dfdd-4904-8a51-3f007effcffa",
"_ts": 1605613557,
"status": "notified",
"priority": 0,
"location": null,
"label": "A3",
"customerInfo": [
"Jörgen",
"Svensson",
"2200001910105"
],
"type": "anonymous",
"queue": "c179a3a2-9fd7-4e12-96e7-19d9e957e094",
"createdAt": "2020-11-17T11:45:57.114Z",
"numberInTheQueue": 6
}
}