OData RDF Interface is a Node.js project for setting up an OData endpoint on top of your RDF store with SPARQL capabilities.
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README.md

odata-rdf-interface Build status

This project is supposed to become a Node.js-based OData engine working on top of an RDF store.

dependencies

This project depends on various packages.

  • the popular "connect" package,
  • abnfjs, a GitHub project parsing and interpreting ABNF specifications, and
  • rdfstore-js.

For development purposes you need several other packages, especially gulp, see package.json.

To install them in your working directory, please use NPM:

$ npm install

how to use

This package does not provide you with an HTTP server and that's why you can't simply start it.

On the other hand, it enables you to combine it with every HTTP server you want! We still don't have docs but if you want

GET queries that are currently supported:

  • /Posts
  • /Posts?$expand=Content
  • /Posts?$expand=Parent //Parent is an optional navigation property
  • /Posts?$expand=Children //Children is the inverse property of Parent and is an array
  • /Posts?$expand=Children/Parent
  • /Posts?$filter=Id eq 1
  • /Posts?$filter=Content/Id eq 1
  • /Posts?$filter=(Parent/Id eq 1) and (Content/Id eq 2)
  • /Posts?$filter=Children/any(child: child/Id eq 2)
  • /Posts?$filter=Children/any(c1: c1/Children/any(c2: 1 eq 1))

POST queries should be supported (experimental because of the lack of deeper test cases).

development

To develop this project, please use NPM to install dependencies, especially gulp.

To build the NPM package into /build/, use the following command:

$ gulp build

To compile and run the tests (based on mocha/chai/sinon), run:

$ gulp specs

what's missing?

  • $metadata
  • PUT / PATCH / DELETE
  • $batch queries
  • specification conformity... we currently only support some cherry-picked essential features.