Example schema for references to DRS objects

drs-concepts.schema.json

{
  "$id": "https://drs-concepts.example.com/drs-concepts.schema.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "anyOf": [
    { "$ref": "#/$defs/url" },
    { "$ref": "#/$defs/curie" },
  ],  
  "$defs": {
    "url": {
      "title": "DrsObject URL",
      "description": "Reference to a GA4GH Data Repository Service DrsObject",
      "type": "string",
      "pattern": "^drs://[a-zA-Z0-9-]+/.*"
    },
    "curie": {
      "title": "DrsObject CURIE",
      "description": "Compact URI reference to a DrsObject",
      "$comment": "The correct pattern for a CURIE needs to allow all NCName unicode characters from XML, and is out of scope for this example. See <https://www.w3.org/TR/2010/NOTE-curie-20101216/#s_syntax>."
      "type": "string",
      "pattern": "^[a-zA-Z0-9_]+:.*"
    }
}