Geospatial metadata is accessible via the OJS API

[nuest]

Antrag: "die artikel- und zeitschriftenspezifische Verfügbarmachung [...], über die OJS-API (REST API Usage Guide: https://docs.pkp.sfu.ca/dev/api/; Enkodierung z. B. als GeoJSON oder Linked Open Data in Turtle: https://de.wikipedia.org/wiki/Turtle_(Syntax)​)"

Not sure how this could really work. Maybe have a http://ojs/article/geo.json endpoint?

• [ ] API endpoint providing data for each article
• [ ] Use the API endpoint for articles for the download button
• [ ] API endpoint providing data for each issue > #29
• [ ] API endpoint providing data for each journal > -29
• [ ] Create an issue about transferring the existing maps to the new API endpoint
• [ ] Add info about API below each map

[nuest]

• Documentation: https://docs.pkp.sfu.ca/dev/documentation/en/architecture-handlers#api-handlers
• function apiHandler and hook in https://github.com/TIBHannover/optimetaCitations/blob/main/OptimetaCitationsPlugin.inc.php#L84
• server-side code: https://github.com/TIBHannover/optimetaCitations/blob/main/classes/Handler/OptimetaCitationsAPIHandler.inc.php