// JSON 5 server configuration
{
  // Server Description
  buildInfo: {
    productUri: "build.product.test.org",
    manufacturerName: "Manufacture GmbH",
    productName: "Product Name",
    softwareVersion: "0.1.0",
    buildNumber: "0.9.4",
    buildDate: "2022-11-02T15:31:03Z",
  },
  // The applicationType is not just descriptive, it changes the actual functionality of the server.
  // It just sets the value in the information model (https://reference.opcfoundation.org/Core/Part4/v104/docs/7.1).
  applicationDescription: {
    applicationUri: "urn:open62541.server.application",
    productUri: "urn:product.test.org",
    applicationName: {
      locale: "en-EN",
      text: "Test Application"
    },
    // Server = 0, Client = 1, Client&Server = 2, Discovery_Server = 3
    applicationType: 0,
    gatewayServerUri: "GATEWAY",
    discoveryProfileUri: "DISC",
    discoveryUrls: [
      "opc.tcp://10.0.20.240:2017",
      "opc.tcp://10.0.20.240:2018",
      "opc.tcp://10.0.20.241:2020"
    ],
  },
  // Value is in milliseconds.
  shutdownDelay: 5000.00,

  // Verify that the server sends a timestamp in the request header.
  //    DEFAULT = 0
  //    ABORT = 1  /* Abort the operation and return an error code */
  //    WARN = 2   /* Print a message in the logs and continue */
  //    ACCEPT = 3 /* Continue and disregard the broken rule */
  verifyRequestTimestamp: 0,
  // Variables (that don't have a DataType of BaseDataType) must not have an empty variant value.
  // The default behaviour is to auto-create a matching zeroed-out value for empty VariableNodes when they are added.
  //    DEFAULT = 0
  //    ABORT = 1  /* Abort the operation and return an error code */
  //    WARN = 2   /* Print a message in the logs and continue */
  //    ACCEPT = 3 /* Continue and disregard the broken rule */
  allowEmptyVariables: 0,

  // Networking
  // Set up the local ServerUrls. They are used during startup to initialize the server sockets.
  serverUrls: [
    "opc.tcp://localhost:4840",
  ],
  tcpEnabled: true,
  tcp: {
    tcpBufSize: 64000,
    tcpMaxMsgSize: 0,
    tcpMaxChunks: 0,
  },

  // Limits for SecureChannels
  maxSecureChannels: 10,
  maxSecurityTokenLifetime: 300000,

  // Limits for Sessions
  maxSessions: 50,
  maxSessionTimeout: 3600000,

  // Operation limits
  maxNodesPerRead: 10000,
  maxNodesPerWrite: 10000,
  maxNodesPerMethodCall: 10000,
  maxNodesPerBrowse: 10000,
  maxNodesPerRegisterNodes: 10000,
  maxNodesPerTranslateBrowsePathsToNodeIds: 10000,
  maxNodesPerNodeManagement: 10000,
  maxMonitoredItemsPerCall: 10000,

  // Limits for Requests
  maxReferencesPerNode: 0,

  // Limits for Async Operations
  asyncOperationTimeout: 120000,
  maxAsyncOperationQueueSize: 1000000,

  // Discovery Multicast
  mdnsEnabled: false,
  mdns: {
    mdnsServerName: "mdnsServerName",
    serverCapabilities: [
      "LDS",
      "NA",
      "GDS"
    ],
    mdnsInterfaceIP: "127.0.0.1",
    mdnsIpAddressList: [
      1,
      2,
      3
    ]
  },

  subscriptionsEnabled: true,
  subscriptions: {
    // Limits for Subscriptions
    maxSubscriptions: 100,
    maxSubscriptionsPerSession: 50,
    publishingIntervalLimits: {
      min: 100.0,
      max: 3600000.0,
    },
    lifeTimeCountLimits: {
      min: 3,
      max: 15000
    },
    keepAliveCountLimits: {
      min: 1,
      max: 100
    },
    maxNotificationsPerPublish: 1000,
    enableRetransmissionQueue: true,
    maxRetransmissionQueueSize: 0,
    maxEventsPerNode: 0,

    // Limits for MonitoredItems
    maxMonitoredItems: 0,
    maxMonitoredItemsPerSubscription: 0,
    samplingIntervalLimits: {
      min: 50.0,
      max: 86400000.0
    },
    queueSizeLimits: {
      min: 1,
      max: 100
    },

    // Limits for PublishRequests
    maxPublishReqPerSession: 5
  },

  // PubSub Configuration
  pubsubEnabled: true,
  pubsub: {
    enableDeltaFrames: true,
    enableInformationModelMethods: true
  },

  // Limits for Historizing
  historizingEnabled: true,
  historizing: {
    accessHistoryDataCapability: false,
    maxReturnDataValues: 0,
    accessHistoryEventsCapability: false,
    maxReturnEventValues: 0,
    insertDataCapability: false,
    insertEventCapability: false,
    insertAnnotationsCapability: false,
    replaceDataCapability: false,
    replaceEventCapability: false,
    updateDataCapability: false,
    updateEventCapability: false,
    deleteRawCapability: false,
    deleteEventCapability: false,
    deleteAtTimeDataCapability: false,
  },

  // Reverse Connect
  reverseReconnectInterval: 20000,

  // Security Settings
//  securityPolicies: [
//    {
//      policy: "http://opcfoundation.org/UA/SecurityPolicy#Basic128Rsa15",
//      certificate: "/path/to/certificate",
//      privateKey: "/path/to/privateKey"
//    },
//    {
//      policy: "http://opcfoundation.org/UA/SecurityPolicy#Basic256",
//      certificate: "/path/to/certificate",
//      privateKey: "/path/to/privateKey"
//    },
//    {
//      policy: "http://opcfoundation.org/UA/SecurityPolicy#Basic256Sha256",
//      certificate: "/path/to/certificate",
//      privateKey: "/path/to/privateKey"
//    },
//    {
//      policy: "http://opcfoundation.org/UA/SecurityPolicy#Aes128_Sha256_RsaOaep",
//      certificate: "/path/to/certificate",
//      privateKey: "/path/to/privateKey"
//    }
//  ],

//  secureChannelPKI: {
//    trustListFolder: "/path/to/folder",
//    issuerListFolder: "/path/to/folder",
//    revocationListFolder: "/path/to/folder"
//  },
//  sessionPKI: {
//    trustListFolder: "/path/to/folder",
//    issuerListFolder: "/path/to/folder",
//    revocationListFolder: "/path/to/folder"
//  },
}