swift - List expects 3 elements but I don't know from where third comes -


so trying follow tutorial oauth 2.0 here. under section "oauthswift embedded web view". whole function:

// 1 create oauth2swift object let oauthswift = oauth2swift(   consumerkey:    "your_google_drive_client_id",         // 2 enter google app settings   consumersecret: "your_google_drive_client_secret",   authorizeurl:   "https://accounts.google.com/o/oauth2/auth",   accesstokenurl: "https://accounts.google.com/o/oauth2/token",   responsetype:   "code" ) // 3 trigger oauth2 dance oauthswift.authorizewithcallbackurl(   nsurl(string: "com.raywenderlich.incognito:/oauth2callback")!,   scope: "https://www.googleapis.com/auth/drive",        // 4 scope   state: "",   success: { credential, response in     var parameters =  [string: anyobject]()     // 5 embedded http layer , upload     oauthswift.client.postimage(       "https://www.googleapis.com/upload/drive/v2/files",       parameters: parameters,       image: self.snapshot(),       success: { data, response in         let jsondict: anyobject! = nsjsonserialization.jsonobjectwithdata(data,           options: nil,           error: nil)         self.presentalert("success", message: "successfully uploaded!")       }, failure: {(error:nserror!) -> void in         self.presentalert("error", message: error!.localizeddescription)     })   }, failure: {(error:nserror!) -> void in     self.presentalert("error", message: error!.localizeddescription) })

i error on point 4 (scope) list filled:

  success: { credential, response in     var parameters =  [string: anyobject]()

it says expects 3 arguments specified two. appreciated.

it may 2 arguments valid when tutorial made (or last updated), , requires 3 arguments. so, replace:

success: { credential, response in     var parameters =  [string: anyobject]()     ...

with:

success: { credential, response, parameters in     ...

the let jsondict line follows old format, , doesn't handle errors, change to:

do {     let jsondict = try nsjsonserialization.jsonobjectwithdata(data, options: []) as! [string: anyobject]     // , replace [string: anyobject] json format. } catch {     // error handling here }

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