For those folks on windows who want to do http gets and posts directly from your PostgreSQL server, we've made binaries for the http extension for PostgreSQL Windows.
These are designed to work with PostgreSQL EDB windows distributions.
If you have PostGIS already installed, many of these files you will also already have since things like the libcurl and PCRE are also packaged with PostGIS.
PostgreSQL 10-14 64-bit are 1.5.0, other versions are older http versions.
The curl library for http is built with SSL support and utilizes the ssleasy.dll packaged with the EDB and BigSQL installs.
To enable in a database after having installed the binaries.
CREATE EXTENSION http;
Do a basic get
SELECT h.content, h.content_type, hkv.value As dt FROM http_get('http://postgis.net/tips/') AS h LEFT JOIN LATERAL (SELECT * FROM unnest(h.headers) WHERE field = 'Date') AS hkv ON true;
Check out more examples at: https://github.com/pramsey/pgsql-http