Json decode with flutter

Question

Hi I have a question about reading a json using flutter

The code below returns in the string value -> {"return": 2}. But when I print the valuemap.values I have the following result: (2).

How do I do it to read only the integer value? ,

Dart Code:

Future<int> login(String Email, String Password) async {
    //Ret rappresenta il valore di ritorno della funzione 
    var ret=0;
    Map map={
      'Username': Email,
      'Password':Password
    };
    String value=await apiRequest("/login", map);
    print("Valore prima del parse:" +value);
    Map valueMap = json.decode(value);
    print("Stampa di valore:" + valueMap.values.toString());
    return ret;
  }

Try that: print("Stampa di valore:" + valueMap['return'].toString()); — Manish
– Manish, Commented Jan 24, 2020 at 13:25

Crazy Lazy Cat · Accepted Answer · 2020-01-24 13:30:11Z

2

Try this,

...

Map valueMap = json.decode(value);
int returnValue = valueMap["return"];
print("Stampa di valore: $returnValue");

answered Jan 24, 2020 at 13:30

Crazy Lazy Cat

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Comments

Sagar Acharya · Accepted Answer · 2020-01-24 13:34:33Z

1

If you are successful to get the string then you just access it valueMap["valuMap"] and assign to integer value

edited Jan 24, 2020 at 13:34

answered Jan 24, 2020 at 13:28

Sagar Acharya

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