QGIS/resources/function_help/json/decode_uri

{
  "name": "decode_uri",
  "type": "function",
  "groups": ["Map Layers"],
  "description": "Takes a layer and decodes the uri of the underlying data provider. It depends on the dataprovider, which data is available.",
  "arguments": [{
    "arg": "layer",
    "description": "The layer for which the uri should be decoded."
  }, {
    "arg": "part",
    "description": "The part of the uri to return. If unspecified, a map with all uri parts will be returned.",
    "optional": true
  }],
  "examples": [{
    "expression": "decode_uri(@layer)",
    "returns": "{'layerId': '0', 'layerName': '', 'path': '/home/qgis/shapefile.shp'}"
  }, {
    "expression": "decode_uri(@layer)",
    "returns": "{'layerId': NULL, 'layerName': 'layer', 'path': '/home/qgis/geopackage.gpkg'}"
  }, {
    "expression": "decode_uri(@layer, 'path')",
    "returns": "'C:\\\\my_data\\\\qgis\\\\shape.shp'"
  }],
  "tags": ["depends", "layer", "data", "dataprovider", "provider", "uri", "underlying", "decodes", "available"]
}