我有一个名为ServiceHealthApi的适配器类,它具有此功能:
final class ServiceHealthApi {
let mockApi = "https://staging.myapp.com/health"
func getHealth() -> Single<ServiceHealthResponseModel> {
let url = URL(string: mockApi)
guard let validUrl = url else { return .never() }
var urlRequest = URLRequest(url: validUrl)
urlRequest.httpMethod = "GET"
let headers = [
"Content-Type" : "application/json; charset=utf-8"
]
urlRequest.allHTTPHeaderFields = headers
return URLSession.shared.rx.data(request: urlRequest)
.take(1)
.map {
let decoder = JSONDecoder()
decoder.keyDecodingStrategy = .convertFromSnakeCase
return try JSONDecoder().decode(ServiceHealthResponseModel.self, from: $0) }
.asSingle()
}
}
struct HealthResponseModel: Decodable {
struct DataResponse: Decodable {
let serviceName: String
let serviceStatus: String
let serviceOperational: Bool
}
struct Meta: Decodable {
let statusCode: Int
let statusMessage: String
}
let data: [DataResponse]
let meta: Meta
}
应该被解析的JSON
字符串如下:
{
"data": [
{
"service_name": "web",
"service_status": "UP",
"service_operational": true
},
{
"service_name": "orm",
"service_status": "UP",
"service_operational": true
}
],
"meta": {
"status_code": 200,
"status_message": "OK"
}
}
现在,当我尝试运行集成测试时,由于JSONDecoder
中的此错误而失败:
错误keyNotFound(CodingKeys(stringValue:“ serviceName”,intValue:nil),Swift.DecodingError.Context(codingPath:[CodingKeys(stringValue:“ data”,intValue:无),_ JSONKey(stringValue:“索引0”,intValue:0)],debugDescription:“没有与键关联的值CodingKeys(stringValue:\“ serviceName \”,intValue:nil)(\“ serviceName \”)。“,underlyingError:nil))]
[有趣的是,如果我禁用了.convertFromSnakeCase,并且仅使用驼峰式作为响应模型中的变量名称,它就可以正常工作。我知道我可能可以使用编码键,但是我只是想知道,为什么我的实现无法正常工作?
提前感谢。
PS:我尝试直接解析JSON
字符串而不调用API
,它确实起作用。
您正在创建没有任何策略的第二个JSONDecoder