How to create RESTful Service in Oracle Apex? - oracle-apex

Question

I'm trying to create a RESTful service in Oracle Apex 20.2 as follows :
RESTful Service Module : api
Module Base Path : /api/
URI Template : {command}
Full URL : http://localhost:8080/ords/useralias/api/{command}
Method(Value Required) : POST
Source Type : PL/SQL
Source :
htp.p('Hi !');
The service is created. However when calling it via Curl using the command :
curl -X GET http://localhost:8080/ords/useralias/api/something
I'm getting the error :
{
"code": "UserDefinedResourceError",
"title": "User Defined Resource Error",
"message": "The request could not be processed due to an error in a user defined resource",
"o:errorCode": "ORDS-25001",
"cause": "An error occurred when evaluating the SQL statement associated with this resource. SQL Error Code 900, Error Message: ORA-00900: instruction SQL non valide\n",
"action": "Ask the user defined resource author to check the SQL statement is correctly formed and executes without error",
"type": "tag:oracle.com,2020:error/UserDefinedResourceError",
"instance": "tag:oracle.com,2020:ecid/3-WELoSC5oGNk1d3BuOh2A"
}
Using the exact same service with a "GET" handler and the same source (htp.p('Hi !');), the service works properly.
Does anyone know how to make it work please ?
Thanks.

Answer 1

The answer is stupidly simple :
the source should be :
begin
htp.p('hi !');
end;
instead of :
htp.p('hi !');