[wm21 - android] how to use Deserialize() Json

Hi ,

due to lack of info in help , here I going to explain how to use Deserialize() json based on my try/error.

feel free to add if i missing anything
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Deserialize(<Variable> , <Buffer> , <Parameters>)

<variable> -> variable of a structure / variable array of a structure
<Buffer> -> must be buffer not string
<Parameter> -> psdJSON

test data1:
{"Id":1,"Name":"Product"}

Test data 2:
[{"Id":1,"Name":"Manager"},{"Id":3,"Name":"Staff"},{"Id":2,"Name":"Supervisor"}]

///// declare structure ///
stA is Structure
Id is int
Name is string
END



/////////////////////////////////////////////////////////////////////////////////////////
M_Res is buffer = HTTPGetResult() ---> return utf8 buffer


/////////////// program to retrieved test data1 //////////
M_stA is stA

Deserialize(M_stA, M_Res, psdJSON)

info(m_stA.Id, m_stA.Name)


/////////////// program to retrieved test data2 //////////
M_stA is array of stA
Deserialize(M_stA, M_Res, psdJSON)

FOR EACH item OF M_stA
info(item.Id, item.Name)
END


///////////////////////////////////////conclusion//////////////////////////////////////////////////////////
1. the [ ] in json is reason to use variable array rather than variable even if only one record

2. for some reason you may had converted json buffer to string , use stringtoutf8() to convert string to buffer before Deserialize








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