eventgrid-arm.json

{
  "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
   "topicName": {
     "type": "string",
     "metadata": {
       "description": "The value to use for creating the Event Grid Application Topic."
      }
    },
   "subscriptionName": {
     "type": "string",
     "metadata": {
       "description": "The value to use for creating the Event SubScription."
      }
    },
   "subEndpoint": {
     "type": "string",
     "metadata": {
       "description": "The URL you want to push events to."
      }
    }
  },
  "variables": {  
       "apiVersion": "2017-06-15-preview"
  },
  "resources": [
  {
    "name": "[parameters('topicName')]",
    "type": "Microsoft.EventGrid/topics",
    "apiVersion": "[variables('apiVersion')]",
    "location": "[resourceGroup().location]",
    "tags": {},
    "properties": {
    },
    "resources": [
      {
        "name": "[concat(concat(parameters('topicName'), '/Microsoft.EventGrid/'), parameters('subscriptionName'))]",
        "type": "Microsoft.EventGrid/topics/providers/eventSubscriptions",
        "apiVersion": "[variables('apiVersion')]",
        "properties": {
          "destination": {
            "endpointType": "WebHook",
            "properties": {
              "endpointUrl": "[parameters('subEndpoint')]"
            }
          }
        },
     "dependsOn": [
      "[concat('Microsoft.EventGrid/topics/', parameters('topicName'))]"
      ]
      }
    ]
  }
],
  "outputs": { 
    "key1": {
        "value": "[listkeys(resourceId('Microsoft.EventGrid/topics', parameters('topicName')), variables('apiVersion')).key1]",
        "type": "string"
    },
      "eventGridEndPoint": {
            "type": "string",
            "value": "[reference(resourceId('Microsoft.EventGrid/topics', parameters('topicName'))).endpoint]"
      }

   }
}