getting started with json

hello - i hope this is the correct forum for questions.

i was attempting to read the instructions (yes a historic first) here for trying out the new JSON type using my newly installed mariadb-10.3:

https://mariadb.com/kb/en/mariadb/connect-json-table-type/

and i was having trouble with this line in the example:

engine=CONNECT table_type=JSON

the error i see is:

ERROR 1286 (42000): Unknown storage engine 'CONNECT'

in another page i was told to do something like the following (i am just guessing here)

INSTALL SONAME 'ha_connect';

ERROR 1126 (HY000): Can't open shared library '/path/to/plugin/directory/ha_connect.so' (errno: 2, cannot open shared object file: No such file or directory)

any assistance would be most appreciated. what i would love to see is an example for a complete newbie of how to use JSON.