web-dev-qa-db-fra.com

le type 'int' n'est pas un sous-type du type 'String' dans le transtypage de type lors de l'envoi d'une demande de publication

J'ai une erreur étrange apparaissant lors de l'envoi d'une demande de publication.

// this map is passed to a function
final Map<String, dynamic> activityData = {
  "userId": 1,
  "name": activityName.text,
  "description": activityDescription.text,
  "startAt": activityStartAt.text,
  "endsAt": activityEndAt.text,
  "lat": _latitude,
  "long": _longitude,
  "category": 2,
  "status": "pending"
};

// this code bellow is inside a async function
final http.Response response =
        await http.post(Uri.encodeFull(url), body: activityData);

c'est l'erreur:

E/flutter (32582): [ERROR:flutter/Shell/common/Shell.cc(184)] Dart Error: Unhandled exception:
E/flutter (32582): type 'int' is not a subtype of type 'String' in type cast
E/flutter (32582): #0      CastMap.forEach.<anonymous closure> (Dart:_internal/cast.Dart:286:25)
E/flutter (32582): #1      __InternalLinkedHashMap&_HashVMBase&MapMixin&_LinkedHashMapMixin.forEach (Dart:collection/runtime/libcompact_hash.Dart:370:8)
E/flutter (32582): #2      CastMap.forEach (Dart:_internal/cast.Dart:285:13)
E/flutter (32582): #3      mapToQuery (package:http/src/utils.Dart:17:7)
E/flutter (32582): #4      Request.bodyFields= (package:http/src/request.Dart:128:17)
E/flutter (32582): #5      BaseClient._sendUnstreamed (package:http/src/base_client.Dart:163:17)
E/flutter (32582): <asynchronous suspension>
E/flutter (32582): #6      BaseClient.post (package:http/src/base_client.Dart:54:7)
E/flutter (32582): #7      post.<anonymous closure> (package:http/http.Dart:70:16)
E/flutter (32582): #8      _withClient (package:http/http.Dart:166:20)
E/flutter (32582): <asynchronous suspension>
E/flutter (32582): #9      post (package:http/http.Dart:69:5)
E/flutter (32582): #10     _MainModel&Model&ConnectedModel&UsersModel&ActivitiesModel.createActivity (package:activmap/scoped-models/connectedModel.Dart:62:15)
E/flutter (32582): <asynchronous suspension>
E/flutter (32582): #11     _NewActivityState.save (package:activmap/pages/newActivity.Dart:271:11)
E/flutter (32582): <asynchronous suspension>
E/flutter (32582): #12     _NewActivityState.build.<anonymous closure> (package:activmap/pages/newActivity.Dart:248:30)
E/flutter (32582): #13     _InkResponseState._handleTap (package:flutter/src/material/ink_well.Dart:507:14)
E/flutter (32582): #14     _InkResponseState.build.<anonymous closure> (package:flutter/src/material/ink_well.Dart:562:30)
E/flutter (32582): #15     GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.Dart:102:24)
E/flutter (32582): #16     TapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.Dart:242:9)
E/flutter (32582): #17     TapGestureRecognizer.handlePrimaryPointer (package:flutter/src/gestures/tap.Dart:175:7)
E/flutter (32582): #18     PrimaryPointerGestureRecognizer.handleEvent (package:flutter/src/gestures/recognizer.Dart:315:9)
E/flutter (32582): #19     PointerRouter._dispatch (package:flutter/src/gestures/pointer_router.Dart:73:12)
E/flutter (32582): #20     PointerRouter.route (package:flutter/src/gestures/pointer_router.Dart:101:11)
E/flutter (32582): #21     _WidgetsFlutterBinding&BindingBase&GestureBinding.handleEvent (package:flutter/src/gestures/binding.Dart:180:19)
E/flutter (32582): #22     _WidgetsFlutterBinding&BindingBase&GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.Dart:158:22)
E/flutter (32582): #23     _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.Dart:138:7)
E/flutter (32582): #24     _WidgetsFlutterBinding&BindingBase&GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.Dart:101:7)
E/flutter (32582): #25     _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.Dart:85:7)
E/flutter (32582): #26     _invoke1 (Dart:ui/hooks.Dart:168:13)
E/flutter (32582): #27     _dispatchPointerDataPacket (Dart:ui/hooks.Dart:122:5)

Je le fais bien fonctionner sur un autre écran, la seule différence que je peux voir est que celui qui fonctionne n'a que des chaînes, tandis que celui-ci a int, double et String.

postflutterhttp-post
5
Abdellah Chadidi

Découvrez requêtes - une bibliothèque flutter pour faire des requêtes http (inspiré par python))

Publication application/x-www-form-urlencoded: 

var r = await Requests.post(
  "https://reqres.in/api/users", body: {
    "userId": 10,
    "id": 91,
    "title": "aut amet sed",
  },
  bodyEncoding: RequestBodyEncoding.FormURLEncoded);

r.raiseForStatus();
dynamic json = r.json();
print(json['id']);

Publication application/json: 

var r = await Requests.post("https://reqres.in/api/users", json: {
    "userId": 10,
    "id": 91,
    "title": "aut amet sed",
    "body": "libero voluptate eveniet aperiam sed\nsunt placeat suscipit molestias\nsimilique fugit nam natus\nexpedita consequatur consequatur dolores quia eos et placeat",
  });

r.raiseForStatus();
dynamic body = r.json();
print(json['id']);
0
Jossef Harush