muskanmahajan37 / mapd-qlik-extension

MapD Vega Rendering Extension for Qlik

MapD Qlik Extension

Requirements

• npm@5 or higher
• node 8.9.4 or higher

Quick Start

npm install

Change src/constants/connection.js to specify connection to MapD server.

Change desktop path in deployment.config.json to point to your Qlik extensions path.

eg:

  "desktop": {
    "destination": "C:\Users\[user]\AppData\Local\Qlik\Sense\Extensions\"
  }

npm run watch-webpack-deploy-desktop

It will build the extension in the appropriate path and you should have access to MapD-Qlik within Qlik Sense.

Vega Specification Examples

To see vega sepcification examples to use in Qlik, check out http://vega-demo.mapd.com. You can use the examples listed on that site as a base to build your vega specification. To make sure the the filters in Qlik are being added to the MapD SQL Statement. Add the $qlikFilters variable to vega spec in the data[sql] statement.

eg:

{
  "width": $width,
  "height": $height,
  "data": [
    {
      "name": "fec_contributions_oct",
      "sql": "SELECT conv_4326_900913_x(lon) as x, conv_4326_900913_y(lat) as y, recipient_party as dim0, amount as val, rowid FROM fec_contributions_oct WHERE conv_4326_900913_x(lon) between $minXBounds and $maxXBounds and conv_4326_900913_y(lat) between $minYBounds and $maxYBounds $qlikFilters LIMIT 2000000"
    }
  ],
  "scales": ...
  "marks": ...
  ]
}

Testing

npm run test