Swift -将URLRequest转换为cURL

import Foundation

extension URLRequest {
    func toCurl() -> String {
        var curlCommand = "curl -v"

        if let url = self.url {
            curlCommand += " '\(url.absoluteString)'"
        }

        if let httpMethod = self.httpMethod {
            curlCommand += " -X \(httpMethod)"
        }

        if let headers = self.allHTTPHeaderFields {
            for (key, value) in headers {
                curlCommand += " -H '\(key): \(value)'"
            }
        }

        if let httpBody = self.httpBody, let bodyString = String(data: httpBody, encoding: .utf8) {
            curlCommand += " -d '\(bodyString)'"
        }

        return curlCommand
    }
}

// 示例用法
let url = URL(string: "https://example.com/api")
var request = URLRequest(url: url!)
request.httpMethod = "POST"
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpBody = "{\"name\":\"John\"}".data(using: .utf8)

let curlCommand = request.toCurl()
print(curlCommand)