Search

GBD WebSuite implements unifed search functionality that works with different types of spatial and domain data. Basically, a search request to the server contains these three parameters:

keyword	keyword to search for
shape	a geometry, if provided, where searches are spatially restricted to
layers	a list of layers where to perform the search

When the server receives a search request, it connects to configured data sources and automatically uses the method (or provider) applicable to each source. For example, for WMS sources, it issues “GetFeatureInfo” requests. For database data, a “SELECT” query will be peformed and so on. Once the server receives results from different sources, they are consolidated, optionally, reformatted (see Features) and returned to the client as a list of uniform GeoJSON features.

Search providers

nominatim

Interface to Nominatim, the OSM search engine. You can configure country and language parameters to customize search results.

sql

Provides direct search in SQL (PostGIS) tables. You need to specify the DB provider to use (see Databases) and the table to search. The table configuration is the table name (optionally, with a schema) and at least one of the following two columns:

• searchColumn is where to search for the keyword. If not configured, the keyword will be ignored

• geometryColumn is used to spatially restrict the search. If not configured, the shape parameter will be ignored

wms

Implements GetFeatureInfo requests for WMS sources. You need to provide the WMS service url. It’s also possible to restrict the search to specific layers.

wfs

Implements GetFeatureInfo requests for WFS sources. You need to provide the WFS service url. It’s also possible to restrict the search to specific layers (or “types”).