import StreamConnection from "@arcgis/core/layers/support/StreamConnection.js"; const StreamConnection = await $arcgis.import("@arcgis/core/layers/support/StreamConnection.js"); @arcgis/core/layers/support/StreamConnection A web socket connection to a stream service. The connection to the stream service can be established by calling StreamLayer's connect() method.
- See also
// get layer's connection configurations const parameters = layer.createConnectionParameters(); // set the spatial reference of the service geometries parameters.spatialReference = new SpatialReference({ wkid: 2154 }); const connection = await layer.connect(parameters); // listen to date-received event once the connection is established // create a graphic from the JSON object returned and add them to view connection.on("data-received", (feature) => { const graphic = Graphic.fromJSON(feature); graphic.symbol = myPointSymbol; view.graphics.push(graphic); }); // close the connection when it is not needed anymore connection.destroy();Property Overview
| Name | Type | Summary | Object |
|---|---|---|---|
The error that explains an unsuccessful attempt to connect to the stream service or an unexpected disconnection from the stream service. | StreamConnection | ||
The status of the Web Socket connection with the stream service. | StreamConnection |
Property Details
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The error that explains an unsuccessful attempt to connect to the stream service or an unexpected disconnection from the stream service.
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connectionStatus
PropertyconnectionStatus Stringreadonly -
The status of the Web Socket connection with the stream service. This property can be watched to see if the connection is lost unexpectedly.
Possible Values:"connected" |"disconnected"
Method Overview
| Name | Return Type | Summary | Object |
|---|---|---|---|
Destroys the existing connection instance to the stream service. | StreamConnection |
Method Details
Event Overview
| Name | Type | Summary | Object |
|---|---|---|---|
| | {attributes: Object,geometry: Object} | Fires when the stream connection receives data. | StreamConnection |
Event Details
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Fires when the stream connection receives data. The event object contains the message properties received from the stream service.