DeviceManagementClient.GetHealthOfDevicesAsync(String, RequestContext) Method

Reference

Definition

Namespace:: Azure.IoT.DeviceUpdate

Assembly:: Azure.IoT.DeviceUpdate.dll

Package:: Azure.IoT.DeviceUpdate v1.0.0

Source:: DeviceManagementClient.cs

Important

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Get list of device health.

public virtual Azure.AsyncPageable<BinaryData> GetHealthOfDevicesAsync (string filter, Azure.RequestContext context = default);

abstract member GetHealthOfDevicesAsync : string * Azure.RequestContext -> Azure.AsyncPageable<BinaryData>
override this.GetHealthOfDevicesAsync : string * Azure.RequestContext -> Azure.AsyncPageable<BinaryData>

Public Overridable Function GetHealthOfDevicesAsync (filter As String, Optional context As RequestContext = Nothing) As AsyncPageable(Of BinaryData)

Parameters

filter: String

Restricts the set of devices for which device health is returned. You can filter on status, device id and module id.

context: RequestContext

The request context, which can override default behaviors of the client pipeline on a per-call basis.

Returns

AsyncPageable<BinaryData>

The AsyncPageable<T> from the service containing a list of BinaryData objects. Details of the body schema for each item in the collection are in the Remarks section below.

Exceptions

ArgumentNullException

filter is null.

RequestFailedException

Service returned a non-success status code.

Examples

This sample shows how to call GetHealthOfDevicesAsync with required parameters and parse the result.

var credential = new DefaultAzureCredential();
var endpoint = new Uri("<https://my-service.azure.com>");
var client = new DeviceManagementClient(endpoint, "<instanceId>", credential);

await foreach (var data in client.GetHealthOfDevicesAsync("<filter>"))
{
    JsonElement result = JsonDocument.Parse(data.ToStream()).RootElement;
    Console.WriteLine(result.GetProperty("deviceId").ToString());
    Console.WriteLine(result.GetProperty("moduleId").ToString());
    Console.WriteLine(result.GetProperty("state").ToString());
    Console.WriteLine(result.GetProperty("digitalTwinModelId").ToString());
    Console.WriteLine(result.GetProperty("healthChecks")[0].GetProperty("name").ToString());
    Console.WriteLine(result.GetProperty("healthChecks")[0].GetProperty("result").ToString());
}

Remarks

Below is the JSON schema for one item in the pageable response.

Response Body:

Schema for DeviceHealthListValue:

{
              deviceId: string, # Required. Device id
              moduleId: string, # Optional. Module id
              state: "healthy" | "unhealthy", # Required. Aggregate device health state
              digitalTwinModelId: string, # Optional. Digital twin model Id
              healthChecks: [
                {
                  name: string, # Optional. Health check name
                  result: "success" | "userError", # Optional. Health check result
                }
              ], # Required. Array of health checks and their results
            }

Applies to

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