如何在swift中为Post请求创建JSON Body

import Foundation

let jsonBody: [String: Any] = [
    "key1": "value1",
    "key2": "value2"
]

guard let jsonData = try? JSONSerialization.data(withJSONObject: jsonBody, options: []) else {
    print("Failed to convert JSON body to data")
    return
}

guard let url = URL(string: "https://example.com/api/endpoint") else {
    print("Invalid URL")
    return
}

var request = URLRequest(url: url)
request.httpMethod = "POST"

request.setValue("application/json", forHTTPHeaderField: "Content-Type")

request.httpBody = jsonData