Working Demos can be found here:
A Websocket API to provide search functionality in Austria's Address register as published under http://www.bev.gv.at/portal/page?_pageid=713,2601271&_dad=portal&_schema=PORTAL
This package relies on the workings of these other components:
- bevdockerdb, a PostGIS powered PostgreSQL installation with abbreviations and
thesaurus dictionary for improved full text search;
- bevaddress-dataload, a set of scripts to load data into the aforementioned PostGIS database.
Install locally using
go get github.com/the42/bevaddressapi
Local installation requires a working Golang environment.
Configuration and running
bevaddressapi accepts two environment variables for configuration:
PORT - the tcp port on which the websocket API will listen for incoming connections, defaults to 5000 if not set;
SECPORT - the tcp port on which the websocket API will listen for incoming TLS connections; If not set or empty, the service is only served unencrypted;
DATABASE_URL - a url defining the connection parameters to the database.
Currently only PostGIS is supported as the database backend. See the documentation on how to set this environment variable.
Install using Docker
docker pull the42/bevaddressapi
docker run -it --name bevadr -P -p 5000:5000 -e DATABASE_URL=postgres://<DB_username>:<DB_password>@<DB_host>:<DB_port>/bevaddress the42/bevaddressapi
Replace DB_.... wit the appropriate values to the Address-database
In case your database server does not support SSl-encryption use
docker run -it --name bevadr -P -p 5000:5000 -e DATABASE_URL=postgres://<DB_username>:<DB_password>@<DB_host>:<DB_port>/bevaddress?sslmode=disable the42/bevaddressapi
The fulltext search endpoint is exposed as a websocket and listens as following:
/ws/address/fts: A websocket endpoint for full text search.
q(required): url-encoded string for full text search.
All further parameters are optional:
autocomplete: when set to
0, queries have to match exactly, any other parameter value will result in a postfix wildcard match.
autocomplete=0, the query
3500 Krems, Eisentürgwill not return any results, whereas with autocomplete set to any other value but
0(default), the query will match
3500 Krems, Eisentürgasse.
postcode: filter by zip-code (Postleitzahl). Partial match is supported by including the character
postcode=35%will match any zip code starting with 35..
citycode: filter by Gemeindekennzahl. Partial match is supported by including the character
province: filter by province (Bundesland). The coding is according to https://de.wikipedia.org/wiki/ISO_3166-2:AT eg. Burgenland=1, Kärnten=2, ... .
lon: filter by latitude and longitude using WGS84 coordinates. When used, both parameters have to be set.
Number of returned results:
n: return up to n results. A hard limit is implemented which prevents bulk downloads bringing down the server.