Hello everyone,
I am new to flutter and I try use signalr at my project. Actually I succeed login, simple parameter and token. But I need multi parameter for my app. My friend prepared API for me. We must use one more parameter. I try same coding but I take a below error.
I wonder where I make mistakes? I tried different models but everytime I take same error.
My json model is
[[
{"aciklama": "Description 1",
"ad": "Ad 1",
"adres": "Adres 1",
"bolge": "Bölge 1",
"cepNo": "0123456789",
"ePosta": "asd@asd.com",
"faksNo": "01234567890",
"ilce": "İlçe 1",
"sehir": "Şehir 1",
"telefonNo": "01234567890",
"vergiDairesi": "Vergi Dairesi 1",
"vergiNo": "987654321",
"yetkili": "Yetkili 1"},
{"aciklama": "Description 2",
"ad": "Ad 2",
"adres": "Adres 2",
"bolge": "Bölge 2",
"cepNo": "0123456789",
"ePosta": "asd@asd.com",
"faksNo": "01234567890",
"ilce": "İlçe 2",
"sehir": "Şehir 2",
"telefonNo": "01234567890",
"vergiDairesi": "Vergi Dairesi 2",
"vergiNo": "987654321",
"yetkili": "Yetkili 2"},
]]
And then I use https://app.quicktype.io/. I convert to dart model. You can see below
// To parse this JSON data, do
//
// final musteri = musteriFromJson(jsonString);
import 'dart:convert';
List<Musteri> musteriFromJson(String str) =>
List<Musteri>.from(json.decode(str).map((x) => Musteri.fromJson(x)));
String musteriToJson(List<Musteri> data) =>
json.encode(List<dynamic>.from(data.map((x) => x.toJson())));
class Musteri {
Musteri({
this.aciklama,
this.ad,
this.adres,
this.bolge,
this.cepNo,
this.ePosta,
this.faksNo,
this.ilce,
this.sehir,
this.telefonNo,
this.vergiDairesi,
this.vergiNo,
this.yetkili,
});
String aciklama;
String ad;
String adres;
String bolge;
String cepNo;
String ePosta;
String faksNo;
String ilce;
String sehir;
String telefonNo;
String vergiDairesi;
String vergiNo;
String yetkili;
factory Musteri.fromJson(Map<String, dynamic> json) => Musteri(
aciklama: json["aciklama"] == null ? null : json["aciklama"],
ad: json["ad"] == null ? null : json["ad"],
adres: json["adres"] == null ? null : json["adres"],
bolge: json["bolge"] == null ? null : json["bolge"],
cepNo: json["cepNo"] == null ? null : json["cepNo"],
ePosta: json["ePosta"] == null ? null : json["ePosta"],
faksNo: json["faksNo"] == null ? null : json["faksNo"],
ilce: json["ilce"] == null ? null : json["ilce"],
sehir: json["sehir"] == null ? null : json["sehir"],
telefonNo: json["telefonNo"] == null ? null : json["telefonNo"],
vergiDairesi:
json["vergiDairesi"] == null ? null : json["vergiDairesi"],
vergiNo: json["vergiNo"] == null ? null : json["vergiNo"],
yetkili: json["yetkili"] == null ? null : json["yetkili"],
);
Map<String, dynamic> toJson() => {
"aciklama": aciklama == null ? null : aciklama,
"ad": ad == null ? null : ad,
"adres": adres == null ? null : adres,
"bolge": bolge == null ? null : bolge,
"cepNo": cepNo == null ? null : cepNo,
"ePosta": ePosta == null ? null : ePosta,
"faksNo": faksNo == null ? null : faksNo,
"ilce": ilce == null ? null : ilce,
"sehir": sehir == null ? null : sehir,
"telefonNo": telefonNo == null ? null : telefonNo,
"vergiDairesi": vergiDairesi == null ? null : vergiDairesi,
"vergiNo": vergiNo == null ? null : vergiNo,
"yetkili": yetkili == null ? null : yetkili,
};
}
And I wrote the codes as below in my view file.
_signalRSantralService.connection.on("Musteriler", (data) {
if (data != null) {
var musteriler = musteriFromJson(data.toString());
debugPrint("işlem tamamlandı");
// musterilerStream.sink.add(musteriler);
}
});
I clicked button and I received this message in terminal. This error : "FormatException: Unexpected character (at character 4)"
I/flutter ( 9934): LogLevel.trace: (WebSockets transport) data received. String data of length '567'
I/flutter ( 9934): LogLevel.error: A callback for the method musteriler threw error 'FormatException: Unexpected character (at character 4)
I/flutter ( 9934): [[{aciklama: Açıklama, ad: Ad, adres: Adres, bolge: Bölge, cepNo: 012345678...
I/flutter ( 9934): ^
I/flutter ( 9934): '.
I/flutter ( 9934): LogLevel.trace: (WebSockets transport) data received. String data of length '11'
How can I edit this error ?
Hello everyone,
I am new to flutter and I try use signalr at my project. Actually I succeed login, simple parameter and token. But I need multi parameter for my app. My friend prepared API for me. We must use one more parameter. I try same coding but I take a below error.
I wonder where I make mistakes? I tried different models but everytime I take same error.
My json model is
And then I use https://app.quicktype.io/. I convert to dart model. You can see below
And I wrote the codes as below in my view file.
I clicked button and I received this message in terminal. This error : "FormatException: Unexpected character (at character 4)"
How can I edit this error ?