当使用alamofire检查服务器响应时,开括号意味着什么?

当使用Alamoire进行呼叫时,我想检查服务器的响应。服务器响应,状态代码为400,标题为 但不显示其余信息。这是什么意思?我有很高的倾向认为问题出在我的头部,但我不确定具体是什么。

class func missionone()。{

让authorizationPath:string=“https://belivedev.restv2.eastus.media.azure.net/api/channels”
如果让authorizationurl:url=url.init(string:authorizationpath){
let参数:【字符串:任意】.=[
“name”:“ios-test-channel-1”,
“description”:“发现时使用的我的频道说明”,
“输入”:。[
“keyframeInterval”:“”,
“streamingprotocol”:“fragmentedmp4”,
“accesscontrol”:[“ip”:[“allow”:。[
[
“name”:“全部允许”,
“address”:“0.0.0.0”,
“SubnetPrefixLength”:“”
]
]
“endpoints”:[]
,
“预览”:。[
“accesscontrol”:[“ip”:[“allow”:。[
[
“name”:“全部允许”,
“address”:“0.0.0.0”,
“SubnetPrefixLength”:“”
]
]
“endpoints”:[]
,
“output”:[“hls”:[“fragmentsPerSegment”:1],
“CrossSiteAccessPolicies”:。[
“clientaccesspolicy”:“”,
“CrossDomainPolicy”:“”
]
]
guard let bealertoken=azureMediaServiceSapimaManager.sharedInstance.authtoken else返回
让标题=[
“x-ms-version”:“2.15”,
“accept”:“应用程序/json”,
“content type”:“应用程序/json”,
“dataserviceversion”:“3.0”,
“maxdataserviceversion”:“3.0”,
“user agent”:“Azure Media Services邮差集合”,
“授权”:“持票人\(持票人)”,
“主机”:“https://rest.media.azure.net”
]
alamofile.request(authorizationURL,method:.post,参数:参数,编码:urlencoding.default,头:头)
.debuglog()。
.validate(状态代码:200..<300)
.responseJSON响应
开关响应结果{
case.failure(允许错误):
打印(错误。本地化描述)
print(“我们点击了failure switch语句\(error.localizedDescription)”)
print(“发送到服务器的URL请求是:(response.request)”)
print(“从服务器发送回的响应是:(response.response)”)
返回
案例.成功:
打印(“验证成功”)
}
}
}
}

}


当使用Alamoire进行呼叫时,我想检查服务器的响应。服务器响应{ status code 400, Headers {
但不显示其余信息。这是什么意思?我有很高的倾向认为问题出在我的头部,但我不确定具体是什么。

class func missionOne(){

        let authorizationPath: String = "https://belivedev.restv2.eastus.media.azure.net/api/Channels"
        if let authorizationURL: URL = URL.init(string: authorizationPath){
            let parameters: [String : Any] = [
                "Name": "iOS-test-channel-1",
                "Description": "My channel description for use in discovery",
                "Input": [
                    "KeyFrameInterval": "",
                    "StreamingProtocol": "FragmentedMP4",
                    "AccessControl": ["IP": ["Allow": [
                        [
                            "Name": "Allow All",
                            "Address": "0.0.0.0",
                            "SubnetPrefixLength": ""
                        ]
                        ]]],
                    "Endpoints": []
                ],
                "Preview": [
                    "AccessControl": ["IP": ["Allow": [
                        [
                            "Name": "Allow All",
                            "Address": "0.0.0.0",
                            "SubnetPrefixLength": ""
                        ]
                        ]]],
                    "Endpoints": []
                ],
                "Output": ["Hls": ["FragmentsPerSegment": 1]],
                "CrossSiteAccessPolicies": [
                    "ClientAccessPolicy": "",
                    "CrossDomainPolicy": ""
                ]
            ]
            guard let bearerToken = AzureMediaServicesAPIManager.sharedInstance.authToken else { return }
            let headers = [
                "x-ms-version": "2.15",
                "Accept": "application/json",
                "Content-Type": "application/json",
                "DataServiceVersion": "3.0",
                "MaxDataServiceVersion": "3.0",
                "User-Agent": "azure media services postman collection",
                "Authorization": "Bearer \(bearerToken)",
                "Host" : "https://rest.media.azure.net"
            ]
            Alamofire.request(authorizationURL, method: .post, parameters: parameters, encoding: URLEncoding.default, headers: headers)
                .debugLog()
                .validate(statusCode: 200..<300)
                .responseJSON { response in
                    switch response.result {
                    case .failure(let error):
                        print(error.localizedDescription)
                        print("We hit the failure switch statement \(error.localizedDescription)")
                        print("The url request sent to the server is: \(response.request)")
                        print("The response sent back from the server is: \(response.response)")
                        return
                    case .success:
                        print("Validation Successful")
                        }
                    }
            }
    }

}