This as an open source library to compose and parse JSON objects. For more informations about json, have a look at json.org. It is a popular language used as part of many other protocols, like REST.
The usage is simple. You can describe a JSON file with a special structure format, which then can be stored or loaded from or to a file. Actually instead of a file, you are also able to use an HTTP Client library or s.th. similar.
TYPE EXAMPLEJSONSTRUCT :STRUCT var1: JSONVAR; var2: JSONVAR; var3: JSONVAR; obj: EXAMPLEJSONSTRUCT_1; arrayobj: ARRAY[1..3] OF JSONVAR;END_STRUCTEND_TYPE