JSONSerialization.jsonObject returning nil?

Question

注意：我正在执行步骤2.3，我正在努力将stripe与firebase集成。

我有下面的警卫，但会失败。由于json常量，它失败了。

guard let data = data, let json = try? JSONSerialization.jsonObject(with: data, options: []) as? [String : Any], let accountURLString = json["url"] as? String, let accountURL = URL(string: accountURLString) else {
// handle error
print(": jsonfdshkfdbsh :")
return
}

不幸的是，其中的以下声明失败：

let json = try? JSONSerialization.jsonObject(with: data, options: []) as? [String : Any]

线路出了什么问题？我怎样才能让它工作

---

更新：(我尝试过但有没有工作(

let data = data as Data?
print(data, " datavar")//has a value (not nil)
let json = try? JSONSerialization.jsonObject(with: data!, options: []) as? [String : Any]
print(json, " jsonvar") //nil
let accountURLString = json!["url"] as? String
let accountURL = URL(string: accountURLString!)

更新2:

我一直想知道并调查问题是否是request变量路径可能无效(？(。然而，我的测试(我知道数据库中存在一个值(没有产生任何结果。

if let url = URL(string: backendAPIBaseURL)?.appendingPathComponent("stripe_customers/IYNpofaWUFXfobmFRLMLIEZXxqN2") {// usually the string is: "onboard-user"
var request = URLRequest(url: url)
request.httpMethod = "POST"

print(URLSession.shared.dataTask(with: request), "<-- ay un problem?")
print(request, " this was the request value")

let task = URLSession.shared.dataTask(with: request) { (data, response, error) in
print("does thsi run??? ", data)

let data: Data = data!// as Data?
print(data, " ttekjfdsjklfhdas")
//...

Answer 1

问题与更新2有关。request就是问题所在。

我最终将代码更改为以下代码，这很有效：

func createStripeConnectAccount(uid: String, completion: @escaping(String?, String?) -> Void)  { //accountID, Error
let parameters: [String:Any] = [:]
let url = "https://us-central1-name-fhdskj.cloudfunctions.net/createConnectAccount"
AF.request(url, method: .post, parameters: parameters, encoding: JSONEncoding.default, headers: [:]).responseJSON { response in
switch response.result {
case .success(let dict):
print(dict)
let successDict: [String: Any?] = dict as! [String: Any?]
let body = successDict["body"] as! [String: Any?]
let acctNum = body["success"] as! String

print(acctNum, "<-- link did it twerk?")
completion(acctNum, nil)
case .failure(let error):
print(error.localizedDescription)
completion(nil, error.localizedDescription)
}
}
}

func createAccountLink(accountID: String, completion: @escaping(String?, String?) -> Void)  { //url, Error
let parameters: [String:Any] = ["accountID": accountID]
let url = "https://us-central1-name-fdsad.cloudfunctions.net/createStripeAccountLink"
AF.request(url, method: .post, parameters: parameters, encoding: JSONEncoding.default, headers: [:]).responseJSON { response in
switch response.result {
case .success(let dict):
print(dict)
let successDict: [String: Any?] = dict as! [String: Any?]
let body = successDict["body"] as! [String: Any?]
let link = body["success"] as! String

print(link, "<-- link did it twerk?")
completion(link, nil)

case .failure(let error):
print(error.localizedDescription)
completion(nil, error.localizedDescription)
}
}


}

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