Convert Json of maps to list<Object> in flutter

Question

I have a JSON like that

 [  
    {
        "id": "2a5",
        "employeeNumber": "101",
        "firstName": "Sachin",
        "lastName": "Agrawal"
    },
    {
        "id": "1f7",
        "employeeNumber": "151",
        "firstName": "Karsten",
        "lastName": "Andersen"
    },
]

I tried to parse the JSON like that

List<Employee> employees = (jsonDecode(response.data) as List)
          .map((data) => Employee.fromJson(data))
          .toList();

it causes the following error

List<dynamic>' is not a subtype of type 'String'

when I try to decode the JSON it causes the following error

Unhandled Exception: type 'List<dynamic>' is not a subtype of type 'String'

what is the proper way to parse this type of JSON?

could you include result of print(jsonDecode(response.data));? — eamirho3ein
– eamirho3ein, Commented Oct 13, 2022 at 5:49

eamirho3ein · Accepted Answer · 2022-10-13 06:01:23Z

2

You don't need to decode your response.data, it is already in list form. So instead of this:

List<Employee> employees = (jsonDecode(response.data) as List)
          .map((data) => Employee.fromJson(data))
          .toList();

try this:

List<Employee> employees = (response.data as List)
          .map((data) => Employee.fromJson(data))
          .toList();

answered Oct 13, 2022 at 6:01

eamirho3ein

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