❮ Projects Ashlar

Ashlar is a open source Django based tool that provides a way of attaching flexible metadata to geospatial records. The technology supports the following functionality:

  • Editing data schema using a graphical user interface
  • Validating data entry against configured schema
  • Storage of related entities within a single record
  • Fast filtering on user-defined field values
  • Geospatial filtering
  • Auto-generation of frontend display elements such as filter controls to match active schema

This purpose of this project is to build on existing work to create a proof-of-concept static site or mobile data collection app based around flexible data schemas.



In the beginning of the project you will prepare by:

  • Familiarization with Ashlar project
  • Familiarization with DRIVER projects

Coding Phase 1

In this phase you will create a data specification for Ashlar.

  • Create specification (ideally in JSONSchema) for Ashlar data modeling conventions

Coding Phase 2

In this phase of coding, you will be exploring a low-cost backend option for Ashlar.

  • Evaluate and choose a cloud-based NoSQL provider to serve as a data layer.

Coding Phase 3

There are a couple of options for the final phase:

Option 1

Create a static app which can filter and display polygons and points on a map using the data store chosen previously.

Option 2

Create a proof-of-concept application for data collection, including:

  • Familiarize with DRIVER-Android project
  • Create an data collection Android app which auto-generates forms and allows filled-in forms to be pushed to the data store chosen previously.
  • Python experience
  • Django experience preferred
  • Javascript experience preferred


Until next time

Summer 2018 session is closed

Applications for the Summer 2018 session of the Azavea Open Source Fellowship Program are now closed. Sign up for notifications about future opportunities.