我有这个 GraphQL 查询:
query QuoteRequests($page: Int!) {
getQuoteRequestsList(page: $page) {
vehicle
body
licensePlate
vin
quality
currency
items
}
}
它生成此示例结果:
{
"data": {
"getQuoteRequestsList": [
{
"vehicle": "1997 TOYOTA AVALON 4 DR ",
"body": "Sedan",
"licensePlate": "RHJ456",
"vin": "XBGGDFYYREAXVJJJD",
"quality": [
"GENUINO"
],
"currency": "USD",
"items": [
{
"uid": "74355f85-5312-9999-8acd-709ceccda00a",
"name": "Doble cero que es",
"description": "no me interesa",
"quantity": 11
},
{
"uid": "66db6fe0-1044-4d58-8454-5e51ab7a313f",
"name": "El arenero",
"description": "el duende verde",
"quantity": 2
}
]
},
]
}
}
项目数据是 JSON 类型,当尝试使用Ferry包获取该数据时
client.request(GQuoteRequestsReq((b) => b..vars.page = 0)).listen((response) => print(response.data.toString()));
我得到一个空结果,但如果我将项目排除在查询之外,我会得到一个非空结果。如果我使用HTTP包运行该查询,我没有问题。
这是包的错误吗?还是我需要配置一些东西?
谢谢。
更新 1
这绝对是一个错误,因为如果我尝试在 Flutter 中进行热重载,我会在调试控制台中收到此错误:
Reloaded 1 of 1700 libraries in 860ms.
E/flutter ( 2286): [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: Deserializing '[__typename, Query, getQuoteRequestsList, [{__typename: GetQuoteRequestsRecor...' to 'GQuoteRequestsData' failed due to: Deserializing '[{__typename: GetQuoteRequestsRecord, uid: 0bf6709f-7ab7-464e-8ee3-6a94e46f05...' to 'BuiltList<GQuoteRequestsData_getQuoteRequestsList>' failed due to: Deserializing '[__typename, GetQuoteRequestsRecord, uid, 0bf6709f-7ab7-464e-8ee3-6a94e46f057...' to 'GQuoteRequestsData_getQuoteRequestsList' failed due to: Deserializing '[{uid: 16870250-5acb-4c23-a7e4-f4e23bbd23ad, name: Doble cero que es, descrip...' to 'GJSON' failed due to: type 'List<dynamic>' is not a subtype of type 'String?' in type cast
E/flutter ( 2286): #0 BuiltJsonSerializers._deserialize
package:built_value/src/built_json_serializers.dart:178
E/flutter ( 2286): #1 BuiltJsonSerializers.deserialize
package:built_value/src/built_json_serializers.dart:124
很明显它正在获取预期的结果,但它无法正确反序列化,然后它返回一个空结果。
有什么解决方法吗?
更新 2
我已经尝试过这个解决方案,但我遇到了同样的错误。
在我的情况下,我已经按照这些步骤,我已经
- 安装
built_value
包, - 编辑
build.yaml
的文件, - 运行命令
flutter packages pub run build_runner build