Frederick C. Lee's questions

环境：
Vapor (v4.77+)
MacOS v13.4.1

Xcode的info.plist：

结果：

初始有效负载：PayloadModel（文件名：“ToiletOnTheSea”，内容类型：“image/png”，数据：466220 字节）状态代码：413

这是数据模型：

 struct PayloadModel: Codable {
    let filename: String
    let contentType: String
    let data: Data

    enum CodingKeys: String, CodingKey {
        case filename
        case contentType
        case data
    }
 }

这是 iOS 客户端：

func uploadImageToServer() async {
        let sampleImage = "ToiletOnTheSea"

        guard let image = UIImage(named: sampleImage), let imageData = image.pngData() else {
            showAlert("No Image", "I couldn't access \(sampleImage)")
            print("Error converting image to data")
            return
        }

        let payload = PayloadModel(filename: sampleImage, contentType: "image/png", data: imageData)

        var request = URLRequest(url: serverURL)
        request.httpMethod = "POST"
        request.setValue("application/json", forHTTPHeaderField: "Content-Type")

        print("Initial Payload: ", payload)

        do {
            let jsonData = try JSONEncoder().encode(payload)
            request.httpBody = jsonData

            let (data, response) = try await URLSession.shared.data(for: request)

            if let httpResponse = response as? HTTPURLResponse {
                print("Status Code: \(httpResponse.statusCode)")

                if let serverData = try? JSONDecoder().decode(ServerResponse.self, from: data) {
                    let contentType = serverData.payload.contentType
                    let message = serverData.message
                    let filename = payload.filename
                    let count = payload.data.count

                    print("contentType: ", contentType)
                    print("filename: ", filename)
                    print("data count: ", count)

                    showAlert("Server Data", message)

                } else {
                    showAlert("Server-Response Error", "Unable to decode server response")
                }

                // Process data if needed
            } else {
                print("Error: Unexpected response")
            }
        } catch {
            showAlert("Error", "\(error)")
        }
    }

这是 Vapor v4 对应的服务器（在路由文件中）：

struct ServerResponse: Content {
    let message: String
    let payload: PayloadModel?

    // Provide an initializer that takes the required parameters
    init(message: String, payload: PayloadModel? = nil) {
        self.message = message
        self.payload = payload
    }

    // Implement the required initializer for the Decodable protocol
    init(from decoder: Decoder) throws {
        let container = try decoder.container(keyedBy: CodingKeys.self)
        message = try container.decode(String.self, forKey: .message)
        payload = try container.decodeIfPresent(PayloadModel.self, forKey: .payload)
    }

    // Define coding keys to match the properties
    enum CodingKeys: String, CodingKey {
        case message
        case payload
    }
}



func storeImage(req: Request) async throws -> ServerResponse {
//    let payload = try req.content.decode(PayloadModel.self)
    let response = ServerResponse(message: "Holy Shit, Batman! I'm from storeImage!!", payload: nil)
    return response
}

我将代码减少到最少，以找出尺寸拒绝的原因。
我已经发送（发布）了一个成功且没有大小错误的字符串。

2. 我原以为存在蒸汽尺寸限制，所以我将其设置为比图像尺寸更高的尺寸，这并没有改变结果。因此我评论道：

问题：为什么会出现尺寸问题，是什么原因造成的以及补救措施：

[警告] Abort.413：有效负载太大 [请求 ID：3224652A-0F82-43E9-AA7A-92496FB7781D]