Structs

Structs

Decoding

JSON decoding to Erlang binary structure is the default if no mode given, but can use the option {mode, struct}.

Note : it is only a convention. Binary struct is returned by default if mode value is not map,proplist or record. So {mode, whatever} will return binary struct as well.

1> {ok, A} = jason:decode_file("priv/ref1.json",[{mode, struct}, {return, tuple}]).
{ok,[{<<"glossary">>,
      [{<<"title">>,<<"example glossary">>},
       {<<"GlossDiv">>,
        [{<<"title">>,<<"S">>},
         {<<"GlossList">>,
          [{<<"GlossEntry">>,
            [{<<"ID">>,<<"SGML">>},
             {<<"SortAs">>,<<"SGML">>},
             {<<"GlossTerm">>,<<"Standard Generalized Markup Lang"...>>},
             {<<"Acronym">>,<<"SGML">>},
             {<<"Abbrev">>,<<"ISO 8879:1986">>},
             {<<"GlossDef">>,
              [{<<"para">>,<<"A meta-m"...>>},
               {<<"GlossSee"...>>,[<<...>>|...]}]},
             {<<"GlossSee">>,<<"markup">>}]}]}]}]}]}