Swift

Question

我正在使用 JSON 解码器和 URL session 从 API 解码 JSON。效果很好

URLSession.shared.dataTask(with: request) { (data, theResponse, error)

在“theResponse”（我没有解码）中，最后一个键是“X-RateLimit-requests-Remaining”：

<NSHTTPURLResponse: 0x6000033ec300> { URL: myUrl } { Status Code: 200, Headers {
    Connection =     (
        "keep-alive"
    );
    "Content-Encoding" =     (
        gzip
    );
    "Content-Length" =     (
        1913
    );
    "Content-Type" =     (
        "application/json"
    );
    Date =     (
        "Mon, 28 Sep 2020 14:34:35 GMT"
    );
    Server =     (
        "RapidAPI-1.2.6"
    );
    "X-RapidAPI-Region" =     (
        "AWS - eu-central-1"
    );
    "X-RapidAPI-Version" =     (
        "1.2.6"
    );
    "X-RateLimit-requests-Limit" =     (
        100
    );
    "X-RateLimit-requests-Remaining" =     (
        68
    );
} }

由于以上不是 JSON，是否可以将这些值解码为一种类型，然后我可以将其用于速率限制目的？

例如，当“X-RateLimit-requests-Remaining”达到 10

时限制我的应用内的请求

谢谢

Answer 1

这些已经为您解码成 [AnyHashable: Any] 字典。要获取这个特定的，您需要按照以下几行进行检查：

if let remaining = theResponse.allHeaderFields["X-RateLimit-requests-Remaining"] 
                       as? Int { ... }

Swift - 是否可以解码 HTTP 响应 headers，以限制请求？

Swift - Is it possible to decode the HTTP response headers, for request limiting?

swiftui

urlsession

jsondecoder