Solid Technology

http://talks.kjernsmo.net/solid/2019/ldsv-ws.html

Solid means Social Linked Data

Solid gives

Everyone a Pod, where you can store and manage your data
Everyone an identity, a WebID
An authorization system with fine grained control
Takes advantage of various security mechanisms

Solid specifications

Linked Data Platform

Defines a read-write interface through HTTP methods

WebID

Has several authentication methods

WebID with OpenID Connect
WebID with TLS client certicates
WebID with the SAFE Network
future options

Access Control Lists


@prefix acl: <http://www.w3.org/ns/auth/acl#>.
@prefix foaf: <http://xmlns.com/foaf/0.1/>.
@base <https://solid.kjernsmo.net/profile/>

<card.acl#owner>
    a acl:Authorization;
    acl:agent <card#me>;
    acl:accessTo <card>;
    acl:mode
        acl:Read, acl:Write, acl:Control.
<card.acl#public>
    a acl:Authorization;
    acl:agentClass foaf:Agent;
    acl:accessTo <card>;
    acl:mode acl:Read.

Access Control Lists with Origin


<card.acl#owner>
    a acl:Authorization;
    acl:agent <https://yourdomain.org/profile/card#me>;
    acl:accessTo </my/data>;
    acl:origin <https://trustworthy.com>
    acl:mode acl:Read .

Focus on Developer Tools

We have a prototype server
and a rewrite is in progress
We have released a Software Development Kit, based on React.
We publish a style guide
Making RDF easy to work with through e.g. LDFlex

Server-side

Intelligence is intended to be mostly on the client side
Some things, e.g. semantic lifting could happen on the server side
What would make it easy for you to run a Solid server?

Solid frontend is framework agnostic

React
Solid-panes (i.e. Data browser)
Native
whatever

LDFlex

Path expressions:


      person.firstName

How these map to RDF is defined with JSON-LD

Say


      await person.firstName

...and it is transformed to a SPARQL query that is used to actually fetch the data from the Web.