带有嵌套JSON参数的Alamofire发布请求 [英] Alamofire Post Request with nested JSON parameters

问题描述

我的Alamofire发布请求如下所示：

My Alamofire post request looks like this:

Alamofire.request("http://...", method: HTTPMethod.post, parameters: parameters, encoding: JSONEncoding.default, headers: nil)
         .responseJSON(completionHandler: {(response) in ... })

如果我的参数很简单，那么一切都很好：

Everything works fine if my parameters are simple:

let parameters: Parameters = [
    "firstName": "John",
    "lastName": "Doe"
]

如果我的参数包含json对象，则会遇到问题。

I run into problems if my parameters contain a json object.

let address: JSON = [
    "street": "1234 Fake St",
    "city": "Seattle",
    "state": "WA"
]

let parameters: Parameters = [
    "firstName": "John",
    "lastName": "Doe",
    "address": address
]

Alamofire请求未执行，我的应用程序崩溃了。

The Alamofire request is not performed and my application crashes.

推荐答案

我相信e这里的问题是Alamofire试图将参数编码为已经是json对象的json。本质上，双重编码会导致应用程序崩溃。

I believe the issue here is that Alamofire is trying to encode a parameter as json that is already a json object. Essentially, double-encoding causes the application to crash.

我发现的解决方案是在使用SwiftyJSON的 .rawValue执行请求之前解码json参数。 。

The solution I found was to decode the json parameter before performing the request using SwiftyJSON's .rawValue.

let parameters: Parameters = [
    "firstName": "John",
    "lastName": "Doe",
    "address": address.rawValue
]

https://github.com/SwiftyJSON/SwiftyJSON#raw-object

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