Swift3 Twitter友谊/创建api要求在swift中进行身份验证

我正在尝试发布一个跟踪用户的帖子，但仍然无法点击post api post

它显示：

错误：可选（错误域=TwitterApierDomain代码=220“请求 失败：禁止（403）“UserInfo={NSLocalizedFailureReason=Twitter API错误：您的凭据不允许访问此资源。 （代码220），TWTRNetworkingStatusCode=403， NSErrorFailingURLKey=， NSLocalizedDescription=请求失败：禁止（403）}）

这是我的代码：：：

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让twitterClient=TWTRAPIClient（）

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有人能帮我吗。提前感谢

这是使用用户的twitter id或屏幕名称跟踪用户的简单方法：

func使用SLComposer Twitter（）获取以下信息{

---

错误很明显，它表示您没有凭据，请显示您的代码。let twitterClient=TWTRAPIClient（）let StatuseShowEndpoint=“”var clientError:NSError？var request=twitterClient.urlRequest（withMethod:“POST”，url:StatuseShowEndpoint，参数：nil，错误：&clientError）request.addValue（“承载（twitterAccess）”，forHTTPHeaderField:“授权”）request.addValue（“gzip”，forHTTPHeaderField:“接受编码”）twitterClient.sendTwitterRequest（请求）{（响应，数据，connectionError）in if connectionError！=nil{print（“错误：（connectionError）”）}else{do{print（“response:：（response）”）在帖子上添加代码

    let statusesShowEndpoint = "https://api.twitter.com/1.1/friendships/create.json?user_id=852067343241027587&follow=true"
    //let params = ["user_id":"\(userId)","follow":"true","screen_name": "Deploables1"]
    var clientError : NSError?

    var request = twitterClient.urlRequest(withMethod: "POST", url: statusesShowEndpoint, parameters: nil, error: &clientError)
    request.addValue("Bearer \(twitterAccess)", forHTTPHeaderField: "Authorization")
    request.addValue("gzip", forHTTPHeaderField: "Accept-Encoding")

    request.addValue("client_credentials", forHTTPHeaderField: "grant_type")
    request.addValue("application/x-www-form-urlencoded;charset=UTF-8", forHTTPHeaderField: "Content-Type")
    twitterClient.sendTwitterRequest(request) { (response, data, connectionError) in
        if connectionError != nil {
            print("Error: \(connectionError)")
        }else {

            do {
                print("response ::\(response)")



                let json:NSDictionary = try JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions.allowFragments) as! NSDictionary
                print("json: \(json)")



            } catch let jsonError as NSError {
                print("json error: \(jsonError.localizedDescription)")
            }





        }
    }

let accountStore = ACAccountStore()
let twitterType = accountStore.accountType(withAccountTypeIdentifier: ACAccountTypeIdentifierTwitter)

accountStore.requestAccessToAccounts(with: twitterType, options: nil,
                                     completion: { (isGranted, error) in
    guard let userAccounts = accountStore.accounts(with: twitterType),
        userAccounts.count > 0 else { return }
    guard let firstActiveTwitterAccount = userAccounts[0] as? ACAccount else { return }

    // post params
    var params = [AnyHashable: Any]() //NSMutableDictionary()
        params["screen_name"] = "Deploables1"
        params["follow"] = "true"

    // post request
    guard let request = SLRequest(forServiceType: SLServiceTypeTwitter,requestMethod: SLRequestMethod.POST,
                                                                      url: URL(string: "https://api.twitter.com/1.1/friendships/create.json"),
                                                                      parameters: params) else { return }
    request.account = firstActiveTwitterAccount

    // execute request
      request.perform(handler: { (data, response, error) in
    print(response?.statusCode)
    print(error?.localizedDescription)

      })
})

}