Command line interface
CLI scripts can be used perform all actions available in the UI
LinkedDataHub CLI wraps the HTTP API into a set of shell scripts with convenient parameters. The scripts should run on any Unix-based system. They can be used for testing, automation, scheduled execution and such. It is usually much quicker to perform actions using CLI rather than the user interface, as well as easier to reproduce.
Some scripts correspond to a single request to LinkedDataHub, others combine others into tasks with multiple interdependent requests, such as CSV import.
You will need to supply a .pem file of your WebID certificate as well as its password as script arguments, among others.
The CLI scripts use the environmental variable $SCRIPT_ROOT, which should point to the scripts in your LinkedDataHub fork.
They also use the Jena's CLI commands internally, so make sure to have them on $PATH before running the scripts.
Parameters
Common parameters used by most scripts include:
- -f
- --cert-pem-file
- .pem file with the WebID certificate of the agent
- -p
- --cert-password
- Password of the WebID certificate
- -b
- --base
- Base URI of the application
- --proxy
- The host this request will be proxied through (optional)
- It can be used with port 5443 for which the client certificate authentication is always enabled, for example --proxy https://localhost:5443/
Other parameters are script-specific.
Usage
A usage message with parameters of a script is printed when the scripted is run without any arguments. There can be named parameters and default parameters, both of those can be optional. For example:
~/WebRoot/AtomGraph/LinkedDataHub/scripts$ ./create-select.sh Creates a SPARQL SELECT query. Usage: ./create-select.sh options Options: -f, --cert-pem-file CERT_FILE .pem file with the WebID certificate of the agent -p, --cert-password CERT_PASSWORD Password of the WebID certificate -b, --base BASE_URI Base URI of the application --proxy PROXY_URL The host this request will be proxied through (optional) --title TITLE Title of the chart --description DESCRIPTION Description of the chart (optional) --slug STRING String that will be used as URI path segment (optional) --fragment STRING String that will be used as URI fragment identifier (optional) --query-file ABS_PATH Absolute path to the text file with the SPARQL query string --service SERVICE_URI URI of the SPARQL service specific to this query (optional)
The optional parameters are marked with (Optional). In this case there is no default argument, but some scripts require document (named graph) URI as the default parameter, e.g. ontology document URL.
This is how a create-select.sh invocation would look like:
./create-select.sh \ -b "$base" \ -f "$cert_pem_file" \ -p "$cert_password" \ --proxy "$proxy" \ --title "Select concepts" \ --slug select-concepts \ --query-file "$pwd/queries/select-concepts.rq"
Scripts
Currently supported:
| Purpose | Script |
|---|---|
| General | |
| Create document | create-document.sh |
| Update document | update-document.sh |
| Create container | create-container.sh |
| Create item | create-item.sh |
| Create result set chart | create-result-set-chart.sh |
Create SELECT query |
create-select.sh |
| Imports | |
| Create file | imports/create-file.sh |
| Create query | imports/create-query.sh |
| Create CSV import | imports/create-csv-import.sh |
| Import CSV data | imports/import-csv.sh |
| Administration | |
Add owl:import to ontology |
admin/add-ontology-import.sh |
| Clear and reload ontology | admin/clear-ontology.sh |
| Access control | |
| Add agent to group | admin/acl/add-agent-to-group.sh |
| Create authorization | admin/acl/create-authorization.sh |
| Create group | admin/acl/create-group.sh |
| Make application publicly readable to any agent | admin/acl/make-public.sh |
| Model | |
| Create class | admin/model/create-class.sh |
Create CONSTRUCT query |
admin/model/create-construct.sh |
| Create ontology | admin/model/create-ontology.sh |
| Create property constraint | admin/model/create-property-constraint.sh |
Create SELECT query |
admin/model/create-select.sh |
| Import ontology | admin/model/import-ontology.sh |
Usage example:
./create-file.sh https://linkeddatahub.com/my-context/my-dataspace/ \
-f "${cert_pem_file}" \
-p "${cert_password}" \
--title "Friends" \
--file-slug 646af756-a49f-40da-a25e-ea8d81f6d306 \
--file friends.csv \
--file-content-type text/csv
See also the Import CSV data tutorial.
Find the CLI scripts on GitHub or check out the demo apps that use them.