example basic function

-- For function code use any number of 4 DIGITS starting with '9'. It is reserved for you!!!!
-- FUNCTION CODE: 9280

CREATE OR REPLACE FUNCTION "ud_sample".user_fct_mybasicfunction(p_data json) RETURNS json AS
$BODY$

-- Here you can define the example call for your function. Very usefull to debug and to maintenance the code
/*EXAMPLE SELECT user_fct_mybasicfunction($${
"client":{},
"form":{},
"feature":{},
"data":{ "parameters":{"arcId":"2001"}}}$$)::text
*/

DECLARE

--Definition of all the variables used in the function
v_arc_id text;-- We recomend to use v_* to define all variables to prevent conflicts with columnnames and tablenames

BEGIN

-- Search path - definition of schema in which the function will execute all the processes
SET search_path = "ud_sample", public;

-- Getting input data from the input json
v_arc_id := ((p_data ->>'data')::json->>'parameters')::json->>'arcId';

--Computing process
UPDATE arc SET the_geom = St_Reverse (the_geom) WHERE arc_id = v_arc_id;

--Return - create return
RETURN ('{"status":"Accepted", "message":{"level":1, "text":"Analysis done successfully"}'||
',"body":{"form":{}'||
',"data":{}}'||
'}')::json;

END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;