Error in parsing nested JSON list in flutter - dart

Question

Calling API but showing error, I'm unable to parse data in the bean class.
My Response:
{
"error":"0",
"status":200,
"deliveryCharge":"14.00",
"image_base_url":"http:\/\/xxxxx.tk\/assets\/event\/image\/",
"image_logo_url":"http:\/\/xxxxx.tk\/assets\/event\/logo\/",
"eventList":[
{
"event_id":"1",
"event_name":"Syscraft Premier League",
"event_location":"12 ny valleys",
"event_type_id":"15",
"start_date":"2019-01-10 03:21:00",
"end_date":"2019-01-26 16:10:00",
"event_logo":"f4f0bfc168a3816891e2749232c5243f.jpg"
},
{
"event_id":"3",
"event_name":"Republic Day Event 2019",
"event_location":"AH-654 Villa No. 42 New Township New Township",
"event_type_id":"1",
"start_date":"2019-01-26 00:00:00",
"end_date":"2019-01-26 11:55:00",
"event_logo":"3a4a7fabbbd7ed8febf67bacda71ae48.jpg"
}
]
}
Calling Api
Future<List<EventResponse>> fetchEvent( ) async {
String url='http://xxxxxxxxxxxxxxx.tk/api/userapp/event/lists';
var headers = new Map();
headers['Auth-Key'] = 'OCDOC#2018';
headers['End-Client'] = 'OCDOC';
var body = new Map();
headers['schedule'] = 'present';
http.Response res = await http.post(url,headers: headers, body: body);
final Map<String,dynamic> parsed=json.decode(res.body); // post api call
print("Reposnce Event:---"+parsed.toString());}
My Bean class
class EventResponse{
String error;
int status;
String deliveryCharges;
String imageBaseUrl;
String imageLogoUrl;
List<Event> eventList;
EventResponse({
this.error,
this.status,
this.deliveryCharges,
this.imageBaseUrl,
this.imageLogoUrl,
this.eventList
});
factory EventResponse.convertEventResponse(Map<String,dynamic> json){
return EventResponse(
error: json['error'],
status: json['status'],
deliveryCharges: json['deliveryCharge'],
imageBaseUrl: json['image_base_url'],
imageLogoUrl: json['image_logo_url'],
eventList: json['eventList']);
}}
class Event{
String eventId;
String eventName;
String location;
String event_logo;
Event({
this.eventId,
this.eventName,
this.location,
this.event_logo,
});
factory Event.convertEvent(Map<String,dynamic> json){
return Event(
eventId: json['event_id'],
eventName: json['event_name'],
location: json['event_location'],
event_logo: json['event_logo'],
);}}
Showing Error
_InternalLinkedHashMap<dynamic, dynamic> is not a subtype of type Map<String, String>

Answer 1

Rewrite EventResponse like this:
class EventResponse {
String error;
int status;
String deliveryCharges;
String imageBaseUrl;
String imageLogoUrl;
List<Event> eventList;
EventResponse(
{this.error,
this.status,
this.deliveryCharges,
this.imageBaseUrl,
this.imageLogoUrl,
this.eventList});
factory EventResponse.convertEventResponse(Map<String, dynamic> json) {
List<dynamic> events = json['eventList'];
List<Event> eventList = events.map((e) => Event.convertEvent(e)).toList();
return EventResponse(
error: json['error'],
status: json['status'],
deliveryCharges: json['deliveryCharge'],
imageBaseUrl: json['image_base_url'],
imageLogoUrl: json['image_logo_url'],
eventList: eventList,
);
}
}

Answer 2

I have changed EventResponse as #Richard Heap did.
factory EventResponse.convertEventResponse(Map<String, dynamic> json) {
List<dynamic> events = json['eventList'];
List<Event> eventList = events.map((e) => Event.convertEvent(e)).toList();
return EventResponse(
error: json['error'],
status: json['status'],
deliveryCharges: json['deliveryCharge'],
imageBaseUrl: json['image_base_url'],
imageLogoUrl: json['image_logo_url'],
eventList: eventList,
);
}
}
One more thing I need to change is when I post parameters and headers need to define their Map() to Map<String,String>().
Future<EventResponse> fetchEvent( ) async { // here i change Future type
String url='http://xxxxxxx-oceanapparel.tk/api/userapp/event/lists';
var headers = new Map<String, String>(); //here i defined Map type
headers['Auth-Key'] = 'OCDOC#2018';
headers['End-Client'] = 'OCDOC';
var body = new Map<String, String>(); //here i defined Map type
headers['schedule'] = 'present';
http.Response res = await http.post(url,headers: headers, body: body);
print("Reposnce Event:---"+res.body);
}