Swift解析谷歌搜索API文本文件

我试图解析来自谷歌搜索自动完成端点的结果，但它返回的是一个没有键的文本文件

这是一个示例输出：

["YOURQUERY",["yourquery","yourquery dou","yourquery s.r.o","yourquery отзывы","yourquery львів","yourquery s.r.o. львів"]]

这是我的代码：

let baseURL = "http://suggestqueries.google.com/complete/search?client=firefox&q="

var searchResults: [String] = []

func returnResults(searchTerm: String, completion: @escaping ([String?], Error?) -> Void) {
    let finalUrl = URL(string: baseURL + searchTerm)

    // 3. choose method to transmit and configure to do so
    var request = URLRequest(url: finalUrl!)
    request.httpMethod = "GET"

    // 4. request data
    URLSession.shared.dataTask(with: request) { (data, _, error) in
        // check for errors and data
        if let error = error {
            print("There was an error requesting data")
            return completion([], error)
        }
        guard let data = data else {
            print("There was an error getting data.", error)
            return completion([], NSError())
        }

        // if we got our data back, we need to decode it to match our model object
        let jsonDecoder = JSONDecoder()

        do {
            // 1. decode results into array
            let results = try jsonDecoder.decode([String].self, from: data)

            // 2. set search results var equal to our decoded results array
            self.searchResults = results

            completion(results, nil)
        } catch {
            print("There was an error decoding data.", error)
            completion([], error)
        }}.resume()
}

我得到一个解码错误：

There was an error decoding data. typeMismatch(Swift.String, Swift.DecodingError.Context(codingPath: [_JSONKey(stringValue: "Index 1", intValue: 1)], debugDescription: "Expected to decode String but found an array instead.", underlyingError: nil))

---

您如何正确地解码它？

您的问题是返回的JSON是一个

Any

数组。第一个元素是

字符串

，第二个元素是字符串数组

[String]

。由于

Any

不符合

Decodable

，因此使用

json序列化方法会更容易

class func jsonObject(with data: Data, options opt: JSONSerialization.ReadingOptions = []) throws -> Any

将结果从
Any
强制转换为
[Any]
，并将最后一个元素强制转换为字符串数组
[String]



这会打印出来

“[“yourquery”、“yourquery dou”、“yourquery s.r.o”、“yourquery”，
“yourqueryаааіааааа”和“yourquery s.r.o.ааіаа

let results = try (JSONSerialization.jsonObject(with: data) as? [Any])?.last as? [String] ?? []
print(results)