Onlinekommentar – der frei zugängliche Rechtskommentar
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Commentaries

APIs

The platform provides two APIs for accessing commentary data.

JSON API (/api)

Endpoints

  • GET /api/commentaries - List all published commentaries

  • GET /api/commentaries/{id} - Retrieve a specific commentary by ID

Query Parameters

The GET /api/commentaries endpoint supports the following query parameters:

  • language - Content language (en, de, fr, it). Default: en

  • search - Full-text search query

  • legislative_act - Filter by legislative act ID

  • sort - Sort order: title, -title, date, -date. Default: -date

  • page - Page number for pagination. Default: 1

Example Usage

# Get all commentaries
curl -H 'Accept: application/json' 'https://onlinekommentar.ch/api/commentaries'

# Search for specific term in German
curl -H 'Accept: application/json' 'https://onlinekommentar.ch/api/commentaries?language=de&search=universalversammlung'

# Get commentaries from specific legislative act, sorted by title
curl -H 'Accept: application/json' 'https://onlinekommentar.ch/api/commentaries?legislative_act=2cdeaaed-30b6-416e-a6ca-7eaef78dfd69&sort=title'

# Get a specific commentary by ID
curl -H 'Accept: application/json' 'https://onlinekommentar.ch/api/commentaries/40eb831a-088b-4b27-9fe2-31f049c790a5'

OAI-PMH API (/oai)

Supported Verbs

  • Identify - Repository information and configuration

  • ListMetadataFormats - Available metadata formats (oai_dc, oai_openaire)

  • ListSets - Available sets (legal_domain:*)

  • ListIdentifiers - List record identifiers with optional filtering

  • ListRecords - Harvest full metadata records

  • GetRecord - Retrieve a single record by identifier

Parameters

  • verb - Required OAI-PMH verb (see list above)

  • metadataPrefix - Metadata format (oai_dc or oai_openaire)

  • identifier - Specific record identifier for GetRecord

  • from - Date range start (YYYY-MM-DD format)

  • until - Date range end (YYYY-MM-DD format)

  • set - Limit results to specific set

  • resumptionToken - Token for pagination continuation

Example Usage

# Get repository information
curl 'https://onlinekommentar.ch/oai?verb=Identify'

# List all records in Dublin Core format
curl 'https://onlinekommentar.ch/oai?verb=ListRecords&metadataPrefix=oai_dc'

# List records in OpenAIRE format from specific legal domain
curl 'https://onlinekommentar.ch/oai?verb=ListRecords&metadataPrefix=oai_openaire&set=legal_domain:civil-procedure'

# Get a specific record by identifier
curl 'https://onlinekommentar.ch/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:onlinekommentar.ch:commentary:40eb831a-088b-4b27-9fe2-31f049c790a5'

Metadata Formats

  • oai_dc - Dublin Core metadata standard for basic bibliographic information

  • oai_openaire - OpenAIRE v4.0 compliant metadata for research repositories