Define CQL2-based functions

[fmigneault]

Description

Adds a /functions endpoints (similar to /processes) that returns contents as defined in CQL2 functions.

• /req/filter/get-functions-operation
• /req/filter/get-functions-response-json

Example:

{
   "functions": [
      {
         "name": "min",
         "arguments": [
            {
               "type": ["string","number","datetime"]
            },
            {
               "type": ["string","number","datetime"]
            },
         ],
         "returns": ["string","number","datetime"]
      },
      {
         "name": "max",
         "arguments": [
            {
               "type": ["string","number","datetime"]
            },
            {
               "type": ["string","number","datetime"]
            },
         ],
         "returns": ["string","number","datetime"]
      },
      {
         "name": "geometryType",
         "arguments": [
            {
               "type": ["geometry"]
            }
         ],
         "returns": ["string"]
      }
   ]
}

References

• https://docs.ogc.org/DRAFTS/19-079r3.html#_cql2_functions