host.json

{
    "version": "2.0",
    "functionTimeout": "00:10:00",
    "extensionBundle": {
        "id": "Microsoft.Azure.Functions.ExtensionBundle",
        "version": "[1.*, 3.0.0)"
    },
    "aggregator": {
        "batchSize": 1000,
        "flushTimeout": "00:00:30"
    },
    "healthMonitor": {
        "enabled": true,
        "healthCheckInterval": "00:00:10",
        "healthCheckWindow": "00:00:30",
        "healthCheckThreshold": 5,
        "counterThreshold": 0.70
    },
    "extensions": {
        "cosmosDB": {
            "connectionMode": "Gateway",
            "protocol": "Https"
        },
        "http": {
            "routePrefix": "api",
            "dynamicThrottlesEnabled": true,
            "maxOutstandingRequests": 150,
            "maxConcurrentRequests": 150,
            "customHeaders": {
                "Cache-Control": "public, max-age=90",
                "Strict-Transport-Security": "max-age=31536000; includeSubdomains; preload",
                "x-frame-options": "deny",
                "x-content-type-options": "nosniff",
                "x-xss-protection": "1; mode=block",
                "referrer-policy": "origin-when-cross-origin, strict-origin-when-cross-origin",
                "content-security-policy": "default-src 'none'; style-src 'self' 'unsafe-inline'",
                "x-phe-media-type": "PHE-COVID19.v1"
            }
        }
    },
  "logging": {
    "fileLoggingMode": "debugOnly",
    "logLevel": {
      "default": "Trace",
      "Host.Results": "Trace",
      "Function": "Trace",
      "Host.Aggregator": "Trace"
    },
    "applicationInsights": {
      "samplingSettings": {
        "isEnabled": true,
        "maxTelemetryItemsPerSecond": 20,
        "evaluationInterval": "01:00:00",
        "initialSamplingPercentage": 100.0,
        "samplingPercentageIncreaseTimeout": "00:00:10",
        "samplingPercentageDecreaseTimeout": "00:00:10",
        "minSamplingPercentage": 0.1,
        "maxSamplingPercentage": 100.0,
        "movingAverageRatio": 1.0,
        "excludedTypes": "",
        "includedTypes": "PageView;Trace;Event;Request;Dependency"
      }
    },
    "enableLiveMetrics": true,
    "enableDependencyTracking": true,
      "dependencyTrackingOptions": {
      "enableSqlCommandTextInstrumentation": true
      },
    "enablePerformanceCountersCollection": true,
    "httpAutoCollectionOptions": {
      "enableHttpTriggerExtendedInfoCollection": true,
      "enableW3CDistributedTracing": true,
      "enableResponseHeaderInjection": true
    },
    "snapshotConfiguration": {
      "agentEndpoint": null,
      "captureSnapshotMemoryWeight": 0.5,
      "failedRequestLimit": 3,
      "handleUntrackedExceptions": true,
      "isEnabled": true,
      "isEnabledInDeveloperMode": false,
      "isEnabledWhenProfiling": true,
      "isExceptionSnappointsEnabled": false,
      "isLowPrioritySnapshotUploader": true,
      "maximumCollectionPlanSize": 50,
      "maximumSnapshotsRequired": 3,
      "problemCounterResetInterval": "12:00:00",
      "provideAnonymousTelemetry": true,
      "reconnectInterval": "00:15:00",
      "shadowCopyFolder": null,
      "shareUploaderProcess": true,
      "snapshotInLowPriorityThread": true,
      "snapshotsPerDayLimit": 30,
      "snapshotsPerTenMinutesLimit": 1,
      "tempFolder": null,
      "thresholdForSnapshotting": 1,
      "uploaderProxy": null
    }
  }
}