获取推特朋友列表？

Question

我在twitter friends / list API中得到Bad Authentication data回复。登录时我收到用户ID，屏幕名称，authToken和authTokenSecret。

func loadFollowers(userid:String) {

    //let twapi = "https://api.twitter.com/1.1/followers/list.json?cursor=-1&user_id=\(session)&count=5000"
    let twapi = "https://api.twitter.com/1.1/friends/list.json?cursor=-1&user_id=\(userid)&count=10"
    let url2 = URL(string: twapi)!
    print(url2)
    URLSession.shared.dataTask(with: url2, completionHandler: { (data, response, error) in

    //UIApplication.shared.isNetworkActivityIndicatorVisible = false
        do {
            let userData = try JSONSerialization.jsonObject(with: data!, options:[])
            print(userData)
        } catch {
            NSLog("Account Information could not be loaded \(error)")
        }
    }).resume()
}

输出：

{
"errors": [
    {
        "code": 215,
        "message": "Bad Authentication data."
    }
]
}

在friends/list.json API中发送所需的参数是什么。在本文档中，他们给出的所有参数都是可选的https://developer.twitter.com/en/docs/accounts-and-users/follow-search-get-users/api-reference/get-friends-list

Answer 1

因为这个friends / list api需要身份验证才能获取朋友list.

Answer 2

在Swift 4.2，Xcode 10.1和iOS 12.1中

最后我得到了解决方案。首先我们需要授权然后需要实现朋友列表api。

Pure Swift代码不可用。但我实施的是纯粹的快速。

如果你想从twitter获取好友/列表数据，你需要使用两个API。

1）oauth2 / API令牌

2）好友/列表API

在oauth2 / token api中，您可以获得访问令牌，因为您需要访问令牌以获取朋友列表。而且您需要用户ID，屏幕名称。

但在这里你必须记住一个重点。

1）首先使用oauth2 / token api作为访问令牌。

2）获取访问令牌后，使用twitter登录api获取用户ID和屏幕名称。

3）现在使用friends / list api。

首先，如果您使用twitter登录，然后使用oauth2 / token api访问令牌，则可能会出现Bad Authentication数据错误。所以，请按顺序执行以上3个步骤。

1）获取访问令牌代码（oauth2 / token api）：

func getAccessToken() {

    //RFC encoding of ConsumerKey and ConsumerSecretKey
    let encodedConsumerKeyString:String = "sx5r...S9QRw".addingPercentEncoding(withAllowedCharacters: CharacterSet.urlHostAllowed)!
    let encodedConsumerSecretKeyString:String = "KpaSpSt.....tZVGhY".addingPercentEncoding(withAllowedCharacters: CharacterSet.urlHostAllowed)!
    print(encodedConsumerKeyString)
    print(encodedConsumerSecretKeyString)
    //Combine both encodedConsumerKeyString & encodedConsumerSecretKeyString with " : "
    let combinedString = encodedConsumerKeyString+":"+encodedConsumerSecretKeyString
    print(combinedString)
    //Base64 encoding
    let data = combinedString.data(using: .utf8)
    let encodingString = "Basic "+(data?.base64EncodedString())!
    print(encodingString)
    //Create URL request
    var request = URLRequest(url: URL(string: "https://api.twitter.com/oauth2/token")!)
    request.httpMethod = "POST"
    request.setValue(encodingString, forHTTPHeaderField: "Authorization")
    request.setValue("application/x-www-form-urlencoded;charset=UTF-8", forHTTPHeaderField: "Content-Type")
    let bodyData = "grant_type=client_credentials".data(using: .utf8)!
    request.setValue("\(bodyData.count)", forHTTPHeaderField: "Content-Length")
    request.httpBody = bodyData

    let task = URLSession.shared.dataTask(with: request) { data, response, error in guard let data = data, error == nil else { // check for fundamental networking error
        print("error=\(String(describing: error))")
        return
        }

        let responseString = String(data: data, encoding: .utf8)
        let dictionary = data
        print("dictionary = \(dictionary)")
        print("responseString = \(String(describing: responseString!))")

        if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 { // check for http errors
            print("statusCode should be 200, but is \(httpStatus.statusCode)")
            print("response = \(String(describing: response))")
        }

        do {
            let response = try JSONSerialization.jsonObject(with: data, options: []) as! Dictionary<String, Any>
            print("Access Token response : \(response)")
            print(response["access_token"]!)
            self.accessToken = response["access_token"] as! String

            self.getStatusesUserTimeline(accessToken:self.accessToken)

        } catch let error as NSError {
            print(error)
        }
    }

    task.resume()
}

输出：

{"token_type":"bearer","access_token":"AAAAAAAAAAAAAAAAAAA............xqT3t8T"}

2）使用推特代码登录

@IBAction func onClickTwitterSignin(_ sender: UIButton) {

    //Login and get session
    TWTRTwitter.sharedInstance().logIn { (session, error) in

        if (session != nil) {
            //Read data
            let name = session?.userName ?? ""
            print(name)
            print(session?.userID  ?? "")
            print(session?.authToken  ?? "")
            print(session?.authTokenSecret  ?? "")

             // self.loadFollowers(userid: session?.userID ?? "")

            //Get user email id
            let client = TWTRAPIClient.withCurrentUser()
            client.requestEmail { email, error in
                if (email != nil) {
                    let recivedEmailID = email ?? ""
                    print(recivedEmailID)
                } else {
                    print("error--: \(String(describing: error?.localizedDescription))");
                }
            }
            //Get user profile image url's and screen name
            let twitterClient = TWTRAPIClient(userID: session?.userID)
            twitterClient.loadUser(withID: session?.userID ?? "") { (user, error) in
                print(user?.profileImageURL ?? "")
                print(user?.profileImageLargeURL ?? "")
                print(user?.screenName ?? "")
            }



            let storyboard = self.storyboard?.instantiateViewController(withIdentifier: "SVC") as! SecondViewController
            self.navigationController?.pushViewController(storyboard, animated: true)
        } else {
            print("error: \(String(describing: error?.localizedDescription))");
        }
    }

}

输出：

在这里，您将获得userName，userId，authtoken，authTokenSecret，屏幕名称和电子邮件等。

3）现在从friends / list api获取好友列表。在这里你可以得到朋友/列表，用户/查找，关注者/ ids，粉丝/列表api的数据等...

func getStatusesUserTimeline(accessToken:String) {

    let userId = "109....456"
    let twitterClient = TWTRAPIClient(userID: userId)
    twitterClient.loadUser(withID: userId) { (user, error) in
        if user != nil {
            //Get users timeline tweets
            var request = URLRequest(url: URL(string: "https://api.twitter.com/1.1/friends/list.json?screen_name=KS....80&count=10")!) //users/lookup, followers/ids, followers/list 
            request.httpMethod = "GET"
            request.setValue("Bearer "+accessToken, forHTTPHeaderField: "Authorization")

            let task = URLSession.shared.dataTask(with: request) { data, response, error in guard let data = data, error == nil else { // check for fundamental networking error
                print("error=\(String(describing: error))")
                return
                }

      //                    let responseString = String(data: data, encoding: .utf8)
      //                    let dictionary = data
      //                    print("dictionary = \(dictionary)")
      //                    print("responseString = \(String(describing: responseString!))")

                if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 { // check for http errors
                    print("statusCode should be 200, but is \(httpStatus.statusCode)")
                    print("response = \(String(describing: response))")
                }

                do {
                    let response = try JSONSerialization.jsonObject(with: data, options: [])
                    print(response)

                } catch let error as NSError {
                    print(error)
                }
            }

            task.resume()

        }
    }

}

此代码在任何地方都不可用。我为这段代码做了很多尝试，我花了很多时间。谢谢。