Swift AFNetworking POST 错误

Question

我收到以下错误。我的 XCode 7.1 版，

/Users/chamath/Desktop/SwiftNvoi/Mobile/Mobile/APISFAuthentication.swift:30:22：无法将类型“（AFHTTPRequestOperation！，NSError！）->（）”的值转换为预期的参数类型“（（AFHTTPRequestOperation ?, NSError) -> Void)?'

import Foundation

class APISFAuthentication {


    init(x: Float, y: Float) {

    }



    func fAuthenticateUser(userEmail: String) -> String {

          let manager = AFHTTPRequestOperationManager()
        let postData = ["grant_type":"password","client_id":APISessionInfo.SF_CLIENT_ID,"client_secret":APISessionInfo.SF_CLIENT_SECRET,"username":APISessionInfo.SF_GUEST_USER,"password":APISessionInfo.SF_GUEST_USER_PASSWORD]

        manager.POST(APISessionInfo.SF_APP_URL,
            parameters: postData,
            success: { (operation: AFHTTPRequestOperation!,responseObject: AnyObject!) in
                print("JSON: " + responseObject.description)
            },
            failure: { (operation: AFHTTPRequestOperation!,error: NSError!) in
                print("Error: " + error.localizedDescription)
        })

    }
}

Answer 1

在块中填写参数时不需要指定类类型。像这样更新参数：

func fAuthenticateUser(userEmail: String) -> String {

          let manager = AFHTTPRequestOperationManager()
        let postData = ["grant_type":"password","client_id":APISessionInfo.SF_CLIENT_ID,"client_secret":APISessionInfo.SF_CLIENT_SECRET,"username":APISessionInfo.SF_GUEST_USER,"password":APISessionInfo.SF_GUEST_USER_PASSWORD]

        manager.POST(APISessionInfo.SF_APP_URL,
            parameters: postData,
            success: { (operation, responseObject) in
                print("JSON: " + responseObject.description)
            },
            failure: { (operation, error) in
                print("Error: " + error.localizedDescription)
        })

    }