Just the VTL template portion of the API Gateway - DynamoDB proxy serverless config

apigateway-dynamo-vtl-template_serverless.yml

RequestTemplates:
  application/json: |
    #set($inputRoot = $input.path('$'))
    {
      "RequestItems": {
        "${self:resources.Resources.EventsTable.Properties.TableName}": [
          #foreach($event in $inputRoot.event)
            {
              "PutRequest": {
                "Item": {
                  "UserID" : { "S": "$context.authorizer.claims.sub" },
                  "TimeUTC" : { "S": "$event.time" },
                  "Lat": { "N": "$event.lat" },
                  "Lng": { "N": "$event.lng" },
                  "UUID" : { "S": "$event.uuid"},
                  "Sensor" : { "S": "$event.sensor_name" },
                  "Reading" : { "N": "$event.reading_value" },
                  "Active" : { "BOOL": "$event.is_active" },
                }
              }
            }#if($foreach.hasNext),#end
          #end
        ]
      },
      "ReturnConsumedCapacity": "NONE",
      "ReturnItemCollectionMetrics": "NONE"
    }