vizwit provider test

test.json

{
  "version": "2",
  "header": {
    "title": "Parking Violations",
    "description": "This data set reflects parking violations reported by authorized agencies in Philadelphia.  The data represented below is a sample of parking violations occurring between 2012-2015 with license plate numbers anonymized for privacy.",
	"navigation": [
		{
			"label": "Download",
			"url": "https://data.phila.gov/api/views/3bxz-a5sb/rows.csv?accessType=DOWNLOAD&bom=true"
		}
	]
  },
  "cards": [
    {
      "x": 0,
      "y": 0,
      "width": 6,
      "height": 4,
      "vizwit": {
		"title": "Issue Date & Time",
		"chartType": "datetime",
		"provider": "socrata",
		"domain": "data.phila.gov",
		"dataset": "2pfz-fnns",
		"groupBy": "date_trunc_ym(issue_date_and_time)",
		"triggerField": "issue_date_and_time"
	}
    },
    {
      "x": 6,
      "y": 0,
      "width": 6,
      "height": 4,
      "vizwit": {
		"title": "Zipcodes",
		"chartType": "choropleth",
		"provider": "socrata",
		"domain": "data.phila.gov",
		"dataset": "2pfz-fnns",
		"groupBy": ":@computed_region_8tb6_tjh9",
		
		"boundaries": "https://data.phila.gov/resource/8tb6-tjh9.geojson",
		"boundariesLabel": "code",
		"boundariesId": "_feature_id"
	}
    },
    {
      "x": 0,
      "y": 3,
      "width": 6,
      "height": 4,
      "vizwit": {
		"title": "Violation Description",
		"chartType": "bar",
		"provider": "socrata",
		"domain": "data.phila.gov",
		"dataset": "2pfz-fnns",
		"groupBy": "violation_description"
	}
    },
    {
      "x": 6,
      "y": 3,
      "width": 6,
      "height": 4,
      "vizwit": {
		"title": "Issuing Agency",
		"description": "The agency that issued the violation",
		"chartType": "pie",
		"provider": "socrata",
		"domain": "data.phila.gov",
		"dataset": "2pfz-fnns",
		"groupBy": "issuing_agency"
	}
    },
    {
      "x": 0,
      "y": 6,
      "width": 12,
      "height": 5,
      "vizwit": {
		"title": "Parking Violations",
		"chartType": "table",
		"provider": "socrata",
		"domain": "data.phila.gov",
		"dataset": "2pfz-fnns",
		"padded": true
	}
    }
  ]
}