PRINT_JSON_HTTP_HEADER Procedure

This procedure outputs a standard HTTP header for a JSON output.

Syntax

APEX_PLUGIN_UTIL.PRINT_JSON_HTTP_HEADER;

Parameters

None.

Example

This example shows how to use this procedure in the AJAX callback function of a plugin. This code outputs a JSON structure in the following format: [{"d":"Display 1","r":"Return 1"},{"d":"Display 2","r":"Return 2"}]

-- Write header for the JSON stream.
apex_plugin_util.print_json_http_header;
-- initialize the JSON structure
sys.htp.p('[');
-- loop through the value array
for i in 1 .. l_values.count
loop
    -- add array entry
    sys.htp.p (
        case when i > 1 then ',' end||
        '{'||
        apex_javascript.add_attribute('d', sys.htf.escape_sc(l_values(i).display_value), false, true)||
        apex_javascript.add_attribute('r', sys.htf.escape_sc(l_values(i).return_value), false, false)||
        '}' );
end loop;
-- close the JSON structure
sys.htp.p(']');