Entregable	Servicio API de validación de RDF
Fecha	15/04/2021
Proyecto	ASIO (Arquitectura Semántica e Infraestructura Ontológica) en el marco de la iniciativa Hércules para la Semántica de Datos de Investigación de Universidades que forma parte de CRUE-TIC
Módulo	Librería de validación de RDF
Tipo	Software
Objetivo	Servicio web en formato API para la validación de RDF
Estado	100% Todos los casos de usos de este sistema han sido implementados, así como la documentación asociada.

HErcules RDF Validator Back

RDF playground. This repository contains the server part of the Hércules RDF Validator Back web app. The server has been implemented in Scala using the http4s library.

More info

• The client part of Hércules RDF Validator Back has been separated to a React app.
• Background info about validating RDF: Validating RDF data book
• How-to explains how to use Hércules RDF Validator Back to validate RDF

Deployed versions of Hércules RDF Validator Back

Hércules RDF Validator Back is already deployed here.

Installation and Local Deployment

Requirements

• Hércules RDF Validator Back server requires SBT to be built

Deploy at local machine

• Clone the github repository

• Go to directory where Hércules RDF Validator Back source code is located and execute sbt run

• After some time downloading and compiling uri( the source code it will start the application, which can be accessed at: localhost:8080

• To use a different port run sbt "run --server --port <PortNumber>"

Build a docker image

• Install SBT

• Run sbt docker:publishLocal which will create a docker file at target/docker

Dependencies

Hércules RDF Validator Back server has been implemented in Scala using the following libraries:

• SHaclEX: a Scala implementation of ShEx and SHACL.
• http4s: a purely functional library for http.
• cats: a library for functional programming in Scala.
• UMLShaclex: contains the visualization code that converts schemas to UML diagrams
• SRDF: is the library used to handle RDF. It is a simple interface with 2 implementations, one in Apache Jena, and the other in RDF4j.
• Any23: is used by Hércules RDF Validator Back to convert HTML files in RDFa and Microdata to RDF.
• Topbraid SHACL API: is used to add another SHACL engine apart of the SHaclEX and Apache Jena SHACL engines.

Contribution and issues

Contributions are greatly appreciated. Please fork this repository and open a pull request to add more features or submit issues:

• Issues about Hércules RDF Validator Back online demo
• Issues about SHACLex validation library