Geo operations

This client connects to all Geo-related endpoints of the NBA. Each endpoint is available as a class method (see section 'Methods' below). Optionally, a custom URL pointing to a NBA server and a user Agent can be specified by the user (see section 'Fields' below).

# client <- GeoClient$new()

Format

R6 class

Fields

basePath

Stores url path of the request, defaults to http://api.biodiversitydata.nl/v2

userAgent

Set the user agent of the request, defaults to nbaR/0.1.0

Methods

count

Get the number of geo areas matching a given condition; Conditions given as query string. Parameters:

• query_spec : Object of type QuerySpec or its JSON representation

• queryParams : named list or vector with query parameters

• ... : additional parameters passed to httr::GET

Returns: integer

count_distinct_values

Count the distinct number of values that exist for a given field; Field given as string. See also getDistinctValues. Parameters:

• field : name of field in taxon object

• ... : additional parameters passed to httr::GET

Returns: list

count_distinct_values_per_group

Count the distinct number of field values that exist per the given field to group by; See also endpoint /getDistinctValues. See also getDistinctValuesPerGroup. Parameters:

• group : name of field in the geo area object to group by

• field : name of field in the geo area object

• ... : additional parameters passed to httr::GET

Returns: list

find

Find a GEO area by id; Returns a GEO object containing a GEO json polygon. Parameters:

• id : id of geo area

• ... : additional parameters passed to httr::GET

Returns: GeoArea

find_by_ids

Find geo areas by ids; Given multiple ids, returns a list of geo area objects. Parameters:

• ids : ids of multiple geo areas, separated by comma

• ... : additional parameters passed to httr::GET

Returns: GeoArea

get_distinct_values

Get all different values that exist for a field; A list of all fields for geo area documents can be retrieved with /metadata/getFieldInfo. Parameters:

• field : name of field in geo area object

• ... : additional parameters passed to httr::GET

Returns: list

get_distinct_values_per_group

Get all distinct values (and their document count) for the field given divided per distinct value of the field to group by; See also endpoint /getDistinctValues. Parameters:

• group : name of field in the geo area object to group by

• field : name of field in the geo area object

• ... : additional parameters passed to httr::GET

Returns: list

get_field_info

Returns extended information for each field of a specimen document; Info consists of whether the fields is indexed, the ElasticSearch datatype and a list of allowed operators. Parameters:

• ... : additional parameters passed to httr::GET

Returns: list

get_geo_json_for_locality

Retrieve a GeoJson object for a given locality; Returns a GeoJson polygon. Parameters:

• locality :

• ... : additional parameters passed to httr::GET

Returns: list

get_paths

Returns the full path of all fields within a document; See also metadata/getFieldInfo for all allowed operators per field. Parameters:

• ... : additional parameters passed to httr::GET

Returns: character

get_setting

Get the value of an NBA setting; All settings can be queried with /metadata/getSettings. Parameters:

• name : name of setting

• ... : additional parameters passed to httr::GET

Returns: list

get_settings

List all publicly available configuration settings for the NBA; The value of a specific setting can be queried with metadata/getSetting/name. Parameters:

• ... : additional parameters passed to httr::GET

Returns: list

is_operator_allowed

Checks if a given operator is allowed for a given field; See also metadata/getFieldInfo. Parameters:

• field : Field in geo area document

• operator : operator

• ... : additional parameters passed to httr::GET

Returns: list

query

Query for geo areas; Query on searchable fields to retrieve matching geo areas. Parameters:

• query_spec : Object of type QuerySpec or its JSON representation

• queryParams : named list or vector with query parameters

• ... : additional parameters passed to httr::GET

Returns: QueryResult