Question

UPE T D E D ...起作用的功能！我想将yelp api合并到应用程序中，但无法在URL字符串上成功传递我的授权令牌。我是否需要做一些事情以将URLRequest连接到URLSessoin调用，而不使用标头？也许键值对是错误的？以下函数返回：

error =     {
        code = "TOKEN_MISSING";
        description = "An access token must be supplied in order to use this endpoint.";
    };

我能够使用邮递员来启动yelp API调用，但是只能通过单击邮递员的“标题”部分并放入Bearer，然后输入我的yelp密钥。我在Google上搜索了一下，找到了一些链接，这些链接指示您可以向URLSession添加标头，我认为它可以像邮递员那样工作，但是我无法使其工作。

我知道有一些带有yelp API仓库的github，但是我想不将一大堆我不明白的代码安装到我的应用程序中，当我想要的只是我能看到的JSON时邮差。谁能帮助我了解如何编辑类似于以下示例的代码，以便获得yelp所需的授权/承载？

func getYelp() {
        let appSecret = "Bearer <YELP APIKEY>"
        let link = "https://api.yelp.com/v3/businesses/search?latitude=37.786882&longitude=-122.399972"
        if let url = URL(string: link) {
            // Set headers
            var request = URLRequest(url: url)
            request.setValue("Accept-Language", forHTTPHeaderField: "en-us")
            request.setValue(appSecret, forHTTPHeaderField: "Authorization")

            print("Attempting to get places around location from Yelp")
            let task = URLSession.shared.dataTask(with: request) { (data, response, error) in
                if error != nil {
                    print(error!)
                } else {
                    if let urlContent = data {
                        do {
                            let jsonResult = try JSONSerialization.jsonObject(with: urlContent, options: JSONSerialization.ReadingOptions.mutableContainers) as AnyObject // Added "as anyObject" to fix syntax error in Xcode 8 Beta 6
                            print("Printing all JSON/n/n//n--------------------------")
                            print(jsonResult)
                            print("Printing from results/n/n//n--------------------------")

                            if let description = ((jsonResult["search"] as? NSDictionary)?["context"] as? NSDictionary)?["href"] as? String {

                            } else {
                                print("JSON pull failed/n/n//n--------------------------")
                            }

                        } catch {
                            print("JSON Processing Failed/n/n//n--------------------------")
                        }

                    }
                }
            }
            task.resume()
        } else {
            resultLabel.text = "Couldn't get results from Here"
        }
    }

Answer 1

您在标题和网址之间混在一起，需要正确设置标题

if let url = URL(string: "https://places.cit.api.here.com/places/v1/discover/around?at=37.776169%2C-122.421267&app_id=\(app_id)&app_code=\(app_code)") {
    var request = URLRequest(url: url)
    // Set headers
    request.setValue("Accept-Language", forHTTPHeaderField: "en-us")
    request.setValue("Authorization", forHTTPHeaderField: "Bearer " + token // Token here)

    print("Attempting to get places around location")
    let task = URLSession.shared.dataTask(with: url) { (data, response, error) in
        // ...

Answer 2

让我们说您有一个带有“ https://google.com”的api（这只是带有假密钥的示例）和一个api密钥为“ ApiKey：92927839238293d92d98d98d92”。

然后您将获取此信息并执行此操作。

let uri = URL(string:"https://google.com")
    if let unwrappedURL = uri {
      var request = URLRequest(url: unwrappedURL)request.addValue("92927839238293d92d98d98d92", forHTTPHeaderField: "ApiKey")
let dataTask = URLSession.shared.dataTask(with: request) { (data, response, error) in
    // you should put in error handling code, too
    if let data = data {
        do {
            let json = try JSONSerialization.jsonObject(with: data, options: [])
            // HERE'S WHERE YOUR DATA IS
            print(json)
        } catch {
            print(error.localizedDescription)
        }
    }
}
dataTask.resume()
}

请记住，您将用您的GET地址替换google.com，并用您自己的api键值替换APIKey标头。同样，这将打印出所有的JSON，就像在PostMan中一样。如果这对您有用，那么我还有访问JSON对象的链接。

如何传递承载令牌以使用URLSessoin进行Yelp API调用

2 个答案: