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OPAL Web-Service

This component is part of the demo project. It requires opaldata to access data. It provides data for the web-ui.

How to run

To be able to run you must provide a .env file in the root folder of the project that is similar to

# Elasticsearch configuration
OPAL_ELASTICSEARCH_URL=localhost
OPAL_ELASTICSEARCH_PORT=9200
ES_INDEX=opal

# SPARQL endpoint for previously crawled dataset
SPARQL_ENDPOINT_PREVIOUS=http://localhost:3030/2020-06/

# SPARQL endpoint for latest crawled dataset
SPARQL_ENDPOINT_LATEST=http://localhost:3030/2020-10/

# Will be added as parameter 'urlPrefix' in GEO_REDIRECT URL
GEO_URL_PREFIX=http://localhost:3000/view/datasetView?uri=

# URL to redirect to when map bounding box was selected by user
GEO_REDIRECT=http://localhost:8081/getGeoDatasetsHtml

Then, by running the command

docker-compose up -d

you have the demo containers running and the demo is available on port 8081 (you can set any port that you want in the docker-compose.yml) of your server.

Check the running Docker container by opening http://localhost:8081/opalinfo

Notes

Credits

Data Science Group (DICE) at Paderborn University

This work has been supported by the German Federal Ministry of Transport and Digital Infrastructure (BMVI) in the project Open Data Portal Germany (OPAL) (funding code 19F2028A).