{
   "id": "echo",
   "title": "Echo Process",
   "description": "This process accepts any number of input and simply echoes each input as an output.",
   "version": "1.0.0",
   "jobControlOptions": [
    "sync-execute"
   ],
   "outputTransmission": [
    "value"
   ],
   "links": [
    {
      "href": "http://maps.gnosis.earth/ogcapi/processes/echo/execution",
      "rel": "http://www.opengis.net/def/rel/ogc/1.0/execute",
      "title": "Execution endpoint"
    }
   ],

  "inputs": {
    "stringInput": {
      "title": "String Literal Input Example",
      "description": "This is an example of a STRING literal input.",
      "schema": {
        "type": "string",
        "enum": [
          "Value1",
          "Value2",
          "Value3"
        ]
      }
    },
    "measureInput": {
      "title": "Numerical Value with UoM Example",
      "description": "This is an example of a NUMERIC literal with an associated unit of measure.",
      "schema": {
        "type": "object",
        "required": [
          "measurement",
          "uom"
        ],
        "properties": {
          "measurement": {
            "type": "number"
          },
          "uom": {
            "type": "string"
          },
          "reference": {
            "type": "string",
            "format": "uri"
          }
        }
      }
    },
    "dateInput": {
      "title": "Date Literal Input Example",
      "description": "This is an example of a DATE literal input.",
      "schema": {
        "type": "string",
        "format": "date-time"
      }
    },
    "doubleInput": {
      "title": "Bounded Double Literal Input Example",
      "description": "This is an example of a DOUBLE literal input that is bounded between a value greater than 0 and 10.  The default value is 5.",
      "schema": {
        "type": "number",
        "format": "double",
        "minimum": 0,
        "maximum": 10,
        "default": 5,
        "exclusiveMinimum": true
      }
    },
    "arrayInput": {
      "title": "Array Input Example",
      "description": "This is an example of a single process input that is an array of values.  In this case, the input array would be interpreted as a single value and not as individual inputs.",
      "schema": {
        "oneOf": [ {
          "type": "array",
          "minItems": 2,
          "maxItems": 10,
          "items": {
            "type": "integer"
          }
        }, {
          "type": "array",
          "minItems": 2,
          "maxItems": 10,
          "items": {
            "type": "string"
          }
        } ]
      }
    },
    "complexObjectInput": {
      "title": "Complex Object Input Example",
      "description": "This is an example of a complex object input.",
      "schema": {
        "type": "object",
        "required": [
          "property1",
          "property5"
        ],
        "properties": {
          "property1": {
            "type": "string"
          },
          "property2": {
            "type": "string",
            "format": "uri"
          },
          "property3": {
            "type": "number"
          },
          "property4": {
            "type": "string",
            "format": "date-time"
          },
          "property5": {
            "type": "boolean"
          }
        }
      }
    },
    "boundingBoxInput": {
      "title": "Bounding Box Input Example",
      "description": "This is an example of a BBOX literal input.",
      "schema": {
        "allOf": [
          {
            "format": "ogc-bbox"
          },
          {
            "type": "object",
            "required": [ "bbox" ],
            "properties": {
              "bbox": {
                "type": "array",
                "oneOf": [
                  { "minItems": 4, "maxItems": 4 },
                  { "minItems": 6, "maxItems": 6 }
                ],
                "items": { "type": "number" }
              },
              "crs": {
                "type": "string",
                "format": "uri",
                "default": "http://www.opengis.net/def/crs/OGC/1.3/CRS84",
                "enum": [
                  "http://www.opengis.net/def/crs/OGC/1.3/CRS84",
                  "http://www.opengis.net/def/crs/OGC/0/CRS84h"
                ]
              }
            }
          }
        ]
      }
    },
    "imagesInput": {
      "title": "Inline Images Value Input",
      "description": "This is an example of an image input.  In this case, the input is an array of up to 150 images that might, for example, be a set of tiles.  The acceptable image content types is GeoTIFF in this case.  Each input image in the input array can be included inline in the execute request as a base64-encoded string or referenced using the link.yaml schema.  The use of a base64-encoded string is implied by the specification and does not need to be specified in the definition of the input.",
      "minOccurs": 1,
      "maxOccurs": 150,
      "schema": {
         "type": "string",
         "contentEncoding": "binary",
         "contentMediaType": "image/tiff; application=geotiff"
      }
    }
  },
  "outputs": {
    "stringOutput": {
      "schema": {
        "type": "string",
        "enum": [
          "Value1",
          "Value2",
          "Value3"
        ]
      }
    },
    "measureOutput": {
      "schema": {
        "type": "object",
        "required": [
          "measurement",
          "uom"
        ],
        "properties": {
          "measurement": {
            "type": "number"
          },
          "uom": {
            "type": "string"
          },
          "reference": {
            "type": "string",
            "format": "uri"
          }
        }
      }
    },
    "dateOutput": {
      "schema": {
        "type": "string",
        "format": "date-time"
      }
    },
    "doubleOutput": {
      "schema": {
        "type": "number",
        "format": "double",
        "minimum": 0,
        "maximum": 10,
        "default": 5,
        "exclusiveMinimum": true
      }
    },
    "arrayOutput": {
      "schema": {
        "oneOf": [ {
          "type": "array",
          "minItems": 2,
          "maxItems": 10,
          "items": {
            "type": "integer"
          }
        }, {
          "type": "array",
          "minItems": 2,
          "maxItems": 10,
          "items": {
            "type": "string"
          }
        } ]
      }
    },
    "complexObjectOutput": {
      "schema": {
        "type": "object",
        "required": [
          "property1",
          "property5"
        ],
        "properties": {
          "property1": {
            "type": "string"
          },
          "property2": {
            "type": "string",
            "format": "uri"
          },
          "property3": {
            "type": "number"
          },
          "property4": {
            "type": "string",
            "format": "date-time"
          },
          "property5": {
            "type": "boolean"
          }
        }
      }
    },
    "boundingBoxOutput": {
      "schema": {
        "allOf": [
          {
            "format": "ogc-bbox"
          },
          {
            "type": "object",
            "required": [ "bbox" ],
            "properties": {
              "bbox": {
                "type": "array",
                "oneOf": [
                  { "minItems": 4, "maxItems": 4 },
                  { "minItems": 6, "maxItems": 6 }
                ],
                "items": { "type": "number" }
              },
              "crs": {
                "type": "string",
                "format": "uri",
                "default": "http://www.opengis.net/def/crs/OGC/1.3/CRS84",
                "enum": [
                  "http://www.opengis.net/def/crs/OGC/1.3/CRS84",
                  "http://www.opengis.net/def/crs/OGC/0/CRS84h"
                ]
              }
            }
          }
        ]
      }
    },
    "imagesOutput": {
      "schema": {
         "type": "string",
         "contentEncoding": "binary",
         "contentMediaType": "image/tiff; application=geotiff"
      }
    }
  }
}