Problem to fetch data in api call in flutter/dart - api

Question

how can I fetch the name and team_name keys in this API data?
condition: here 18,1,17, etc are subject codes that change according to the subject and not fix this subject available in the next API call.
{
"18": {
"detail": {
"id": "18",
"name": "Hindi"
},
"list": [
{
"id": "5",
"team_name": "Gurpreet",
},
{
"id": "2",
"team_name": "Test1",
}
]
},
"17": {
"detail": {
"id": "17",
"name": "Punjabi"
},
"list": [
{
"id": "6",
"team_name": "Guru",
},
{
"id": "3",
"team_name": "Test",
}
]
},
"1": {
"detail": {
"id": "1",
"name": "History"
},
"list": [
{
"id": "7",
"team_name": "Gurpreet",
}
]
},
"19": {
"detail": {
"id": "19",
"name": "Math"
},
"list": [
{
"id": "4",
"team_name": "Gurpreet",
}
]
},
"status": true
}

Answer 1

Use this code. You can check keys getter to check dynamics key.
import 'dart:convert';
void main() async {
var f = {
"18": {
"detail": {"id": "18", "name": "Hindi"},
"list": [
{
"id": "5",
"team_name": "Gurpreet",
},
{
"id": "2",
"team_name": "Test1",
}
]
},
"17": {
"detail": {"id": "17", "name": "Punjabi"},
"list": [
{
"id": "6",
"team_name": "Guru",
},
{
"id": "3",
"team_name": "Test",
}
]
},
"1": {
"detail": {"id": "1", "name": "History"},
"list": [
{
"id": "7",
"team_name": "Gurpreet",
}
]
},
"19": {
"detail": {"id": "19", "name": "Math"},
"list": [
{
"id": "4",
"team_name": "Gurpreet",
}
]
},
"status": true
};
for (var o in f.keys) {
print(o);
if (f[o] is bool) {
print(f[o]);
} else { // check it is Map. I consider it always is Map
if ((f[o] as Map)['detail'] != null) {
print((f[o] as Map)['detail']['name']);
}
if ((f[o] as Map)['list'] != null) {
print((f[o] as Map)['list'][0]['team_name']); // you can use for here. please check array is not null
}
}
}
}