将 CURL 命令转换为 URLRequest

Question

我正在尝试转换 curl 命令，以便在我正在制作的 ios 应用程序中快速使用它。我正在使用游乐场项目来试用此功能。

curl命令如下：

curl -L -X POST 'https://myurl.com/mydata' \-H 'x-api-key: xxx' \-H 'Content-Type: application/json' \-d '{"uniqueNumber": “F4”}’

当我将它输入到终端时，我的数据就会显示出来。

我浏览过stackoverflow并设法找到像this和this这样的文章

我对 swift 还是很陌生，据我了解，curl 在 swift 中不起作用，因此您必须将其转换为 URLRequest。

我已尝试使用下面的代码进行此操作，但不断收到一条消息，显示“缺少身份验证令牌”。我做错了什么？

import PlaygroundSupport
import Foundation

let key = "xxx"
let url = URL(string: "https://myurl.com/mydata")
let contentType = "application/json"
let uniqueNumber = "F4"
var request = URLRequest(url: url!)

request.addValue("x-api-key: \(key)", forHTTPHeaderField: "-H")
request.addValue("Content-Type: \(contentType)", forHTTPHeaderField: "-H")
request.addValue("uniqueNumber: \(uniqueNumber)", forHTTPHeaderField: "-d")

let task = URLSession.shared.dataTask(with: request) { data, response, error in
    guard error == nil else {
        print(error!)
        return
    }
    guard let data = data else {
        print("Data is empty")
        return
    }

    let json = try! JSONSerialization.jsonObject(with: data, options: [])
    print(json)
}

task.resume()
PlaygroundPage.current.needsIndefiniteExecution = true

• 更新-

发现问题。我必须包含 requestHTTP 方法以及 httpBody。完成此操作后，它可以完全正常工作。工作代码见下文：

import PlaygroundSupport
import Foundation

let key = "xxx"
let url = URL(string: "https://myurl.com/mydata")
let contentType = "application/json"

//setting and converting the uniqueNumber (input) to a data item so it can be recognized by the API

var uniqueNumber: Data? = "{\"uniqueNumber\": \"F09\"}".data(using: .utf8) // non-nil

var request = URLRequest(url: url!)
request.httpMethod = "POST"
request.addValue(key, forHTTPHeaderField: "x-api-key")
request.addValue(contentType, forHTTPHeaderField: "Content-Type")
request.httpBody = uniqueNumber

URLSession.shared.dataTask(with: request) { (data, response, error) in
    guard error == nil else { print(error!.localizedDescription); return }
    guard let data = data else { print("Empty data"); return }

    if let str = String(data: data, encoding: .utf8) {
        print(str)
    }
}.resume()

PlaygroundPage.current.needsIndefiniteExecution = true

Answer 1

你需要像这样设置标题...

request.addValue(key, forHTTPHeaderField: "x-api-key")
request.addValue(contentType, forHTTPHeaderField: "Content-Type")
request.addValue(uniqueNumber, forHTTPHeaderField: "uniqueNumber")

您为请求设置了无效的标头。

编辑

您还需要在标题中添加 Authentication Token，如下所示。

let authToken = "THIS IS AUTHENTICATION TOKEN TO BE PASSED ON SERVER"
request.addValue(authToken, forHTTPHeaderField: "authenticationToken")

//Please make sure to pass the authentication token the key "authenticationToken". 
//Please change as per actual key to be passed