问如何在iOS应用程序中使用“服务帐户”实现Vision？

EN

class APIHandler {

    private let API_TOKEN = "Your Token"

    func requestVisionFromREST(body: Data, completion: @escaping (_ response: Data?)-> Void)  {
        let config = URLSessionConfiguration.default

        var headers = [String:String]()
        headers["Authorization"] = "Bearer \(API_TOKEN)"
        config.httpAdditionalHeaders = headers

        var urlRequest = URLRequest(url: URL(string: "YOUR URL")!)
        urlRequest.httpMethod = "POST"
        urlRequest.httpBody = body

        URLSession(configuration: config).dataTask(with: urlRequest) { (data, response, error) in
            completion(data)
        }.resume()
    }

}