ExtractQueryParameters creates a map of query parameters (options) by dimension from the provided urlQuery if they exist in the validDimensions list.

GetDimensionOffsetInHeaderRow splits the first item of the provided headers by '_', and returns the second item as integer.

GetListOfValidDimensionNames iterates the provided dimensions and returns an array with their names.

Setup creates the API struct and its endpoints with corresponding handlers.

sortFilter by Dimension size, largest first, to make Neptune searches faster The sort is done here because the sizes are retrieved from Mongo and its best not to have the dp-graph library acquiring such coupling to its caller.

API provides a struct to wrap the api around.

IAuthHandler represents the required methods from authorisation library by Observation API.

IDatasetClient represents the required methods from the Dataset Client required by Observation API.

IGraph defines the required methods from GraphDB required by Observation API.