LDApp - A JavaScript Linked Data Stack

Thomas Bergwinkl / @bergi_bergos

About Me

• Software engineer at bulwiengesa AG
• Read Write Web Community Group Member
• WebID W3C Incubator Group Invited Expert
• Co-Founder of Zazuko GmbH

Why LDApp?

JavaScript Linked Data stack with

• lower the entrance level
• same APIs on the server and client
• modular design

• standard modules for:

  • persistence
  • events
  • authorization
  • authentication
  • HTTP interface
• utils for easy HTML5 application integration

based on standards wherever possible

• RDF-Interfaces
• WebID
• JSON-LD
• LDP
• SPARQL

created missing standards

• RDF-Ext
• Universal Access Control

What LDApp contains

RDF-Ext - The glue

• extension to RDF-Interfaces

• store interface & implementations:

  • SPARQL
  • LDP
  • InMemory
  • Event

• asynchron parser & serializer
  interface & implementations:

  • Turtle
  • NTriples
  • JSON-LD
  • RDF/XML
• Promise wrappers

RDF-JSONify - The bridge to Web 2.0 frameworks

• REST-like interface to a RDF-Ext Store
• JSON-LD objects
• Promise API

The Stack - Server side

The Stack - Client side

How to start using LDApp?

Install

using npm:

npm install ldapp

using git:

git clone https://github.com/bergos/ldapp.git

Start

using npm:

npm start

using node:

node ldapp.js

Import the WebID PKCS12 certificate/key

data/webid.p12

Password: test

Examples

React example

public/blog/blog.html

https://localhost:8443/blog.html

Angular example

public/blog/blog-ajs.html

https://localhost:8443/blog-ajs.html