mapd-data-layer-2

sql-datagraph ·

• API Documentation
• Crossfiltering Vega Example
• MapD Raster Chart Example

Declaratively build SQL data pipelines. Based on the Vega Transform API.

Installation

Using npm

npm install mapd-data-layer --save

Or using yarn

yarn add mapd-data-layer

One can then import it:

import {createDataGraph} from "mapd-data-layer"

Or use the bundled version:

<script src="/path/to/js/mapd-data-layer.min.js"></script>

Development

To get started, first install the dependencies using the yarn command.

Each example folder also has its own set of dependencies, which can also be installed by using yarn. Running the npm start command in each example folder will start a webpack-dev-server serving that example.

The flow type-checker tool is used in development and type declarations can be found in each file. Expression and transform types are declared in src/types.

Prior Art

• Vega Transform
• Vega Architecture
• Calcite Relational Algebra
• Crossfilter API

Contributing

In order to clarify the intellectual property license granted with Contributions from any person or entity, MapD must have a Contributor License Agreement ("CLA") on file that has been signed by each Contributor, indicating agreement to the Contributor License Agreement. If you have not already done so, please complete and sign, then scan and email a pdf file of this Agreement to [e-mail]. Please read the agreement carefully before signing and keep a copy for your records.

License

This project is licensed under the Apache License, Version 2.0.