JSON output in Postgresql

Question

I hope I am not missing something very obvious here,
I want to get JSON output from a postgres function (I imagine many other had already needed this) and I\'d be happy

Answer 1

On the server install:
sudo apt-get install postgresql-plpython-9.4

Then on your Postgres server:

CREATE EXTENSION IF NOT EXISTS plpythonu;
CREATE LANGUAGE plpythonu;

CREATE OR REPLACE FUNCTION prettyprint_json(data text)
 RETURNS json
 AS $$
    import json
    return json.dumps(json.loads(data), indent=4)
 $$ LANGUAGE plpythonu;