deserializing a json array of different objects.

[wenzhengresideo]

Hi how does glaze deal with the following problem?
https://stackoverflow.com/questions/36479152/how-to-deserialize-a-json-array-containing-different-data-types-to-a-single-obje

[
{
"SEX": "Male",
"BREED": "Opifex",
"PVPRATING": 1301,
"NAME": "Kilmanagh",
"FIRSTNAME": "Big",
"PVPTITLE": "Freshman",
"LASTNAME": "Kahuna",
"CHAR_DIMENSION": 5,
"ALIENLEVEL": 30,
"RANK_name": "Vindicator",
"HEADID": 40281,
"PROFNAME": "Guru",
"LEVELX": 220,
"PROF": "Martial Artist",
"CHAR_INSTANCE": 12734,
"SIDE": "Omni"
},
{
"ORG_DIMENSION": 5,
"RANK_TITLE": "President",
"ORG_INSTANCE": 9911,
"NAME": "Elements of Destruction",
"RANK": 0
},
"2016/04/06 08:37:26"
]

[mwalcott3]

tldr use std::tuple or a meta with a glz::array value for this example case and std::vector<std::variant<ObjectTypes...>> generally. It should just work if all the objects have metas.

If the types always have the same order and length you can parse to a std::tuple of those types and it should work as long as they have metas for all the individual objects. std::tuple<Object1, Object2, std::string>. Alternatively, you can also create an array based meta instead of an object one glz::array(&T::object1, &T::object2, &T::date_time)

If the array has variable length and differing types you can create a std::vector of std::variants of the different object types https://github.com/stephenberry/glaze/blob/main/docs/variant-handling.md#auto-deduction-of-object-types and as long as the objects all have metas and they all have unique key combinations it should work automatically. std::vector<std::variant<Object1, Object2, std::string>>

Worst case scenario you can parse to a std::vector<glz::json_t> but I would prefer using the variant support. glz::json_t exists for convivence and should be avoided when possible.

There are also some situations (rare) where you may want to utilize a two stage parse where you parse to an array of glz::raw_json_view and then do typed parses later when you are able to deduce the type.

If you need more details or a full example I can provide them.