Access Twitter Using Swift

Access Twitter using Swift

Update 02-03-2015

You need to authenticate with the server using App Only Authentication rather than passing in an OAuth Token.

As well as this, you are also not requesting status' with userId correctly as you are passing in the user's screen name. You need to obtain the user id with the username and then request for status'.

The complete working code is below:

required init(coder aDecoder: NSCoder) {
    self.swifter = Swifter(consumerKey: "cKEY", consumerSecret: "cSECRET", appOnly: true)
    super.init(coder: aDecoder)

    self.swifter.authorizeAppOnlyWithSuccess({ (accessToken, response) -> Void in
        self.twitterIsAuthenticated = true
    }, failure: { (error) -> Void in
        println("Error Authenticating: \(error.localizedDescription)")
    })
}

@IBAction func getUserButtonPressed(sender: UIButton?) {
    if (self.twitterIsAuthenticated) {
        self.getTwitterUserWithName("erhsannounce")
    } else {
        // Authenticate twitter again.
    }
}

func getTwitterUserWithName(userName: String) {
    self.swifter.getUsersShowWithScreenName(userName, includeEntities: true, success: { (user) -> Void in
        if let userDict = user {
            if let userId = userDict["id_str"] {
                self.getTwitterStatusWithUserId(userId.string!)
            }
        }
        }, failure: failureHandler)
}

func getTwitterStatusWithUserId(idString: String) {
    let failureHandler: ((error: NSError) -> Void) = {
        error in
        println("Error: \(error.localizedDescription)")
    }

    self.swifter.getStatusesUserTimelineWithUserID(idString, count: 20, sinceID: nil, maxID: nil, trimUser: true, contributorDetails: false, includeEntities: true, success: {
        (statuses: [JSONValue]?) in

        if statuses != nil {
            self.tweets = statuses
        }

        }, failure: failureHandler)
}

---

It looks as though you are not Authenticating with the server.

From your code I can see you are using OAuth authentication initialisation but are failing to call the authenticate function.

swifter.authorizeWithCallbackURL(callbackURL, success: {
    (accessToken: SwifterCredential.OAuthAccessToken?, response: NSURLResponse) in

    // Handle success

    },
    failure: {
        (error: NSError) in

        // Handle Failure

    })

Add this in and then call your getTwitterTimeline() afterwards.

I hope this helps

Implementing Single-User OAuth on Twitter using Swift

After hours of digging, I found a package which can expedite the process. It is called Swifter. You can also download the package using Cocoapods by adding pod "Swifter", :git => "https://github.com/mattdonnelly/Swifter.git"

After downloading, add import Swifter at the top of your class file.

Instantiate Swifter by adding the following,

let twitter = Swifter(consumerKey: "", consumerSecret: "", oauthToken: "", oauthTokenSecret: "")

The oauthToken and oauthTokenSecret can be found in your app.twitter.com page. They are your Access Token and Access Token Secret respectively. IF you don't have the access token yet, create one at the Keys and Tokens page. If you want to tweet from your own account, you need to provide the access token to allow single-user OAuth to perform actions like posting tweets.

If you want to trigger a tweet update, just add the following in your button action closure or sort,

twitter.postTweet(status: "Hello world",success: { status in

                print("successfully tweeted! \(status.description)")

            }, failure: { error in

                print("error tweeting! \(error)")

            }) 

Do note that I am using Swifter 2.1.0.

Getting Twitter user details using swift

You can access the username and userID of the logged-in user pretty easily. Inside most Twitter login methods you'll see something like this:

@IBAction func loginTwitter(sender: UIBarButtonItem) {
    Twitter.sharedInstance().logInWithCompletion {
        (session, error) -> Void in
        if (session != nil) {

            print(session?.userName)
            print(session?.userID)
        } else {
            print("error")

        }
    }
}

Twitter does not expose the email address of users as far as I'm aware.

For the profile image you'll need to send a GET request. Here is some code that may not be up to date with the latest TwitterKit version but should at least give you a sense of how the request should be formatted.

func getUserInfo(screenName : String){
    if let userID = Twitter.sharedInstance().sessionStore.session()!.userID {
        let client = TWTRAPIClient(userID: userID)
        let url = "https://api.twitter.com/1.1/users/show.json"
        let params = ["screen_name": screenName]
        var clientError : NSError?
        let request = Twitter.sharedInstance().APIClient.URLRequestWithMethod("GET", URL: url, parameters: params, error: &clientError)

        client.sendTwitterRequest(request) { (response, data, connectionError) -> Void in
            if let someData = data {
                do {
                    let results = try NSJSONSerialization.JSONObjectWithData(someData, options: .AllowFragments) as! NSDictionary
                    print(results)

                } catch {
                }
            }
        }
    }
}

You'll need to go through the JSON that gets returned and find "profile_image_url_https" a couple levels down.

Good Luck!

Swift open twitter profile with action button

Adding this command in to info.plist you can solve this problem.

LSApplicationQueriesSchemes

twitter

How do I store & access a Twitter Fabric login session (iOS/Swift)?

If there is currently an active session you should be able to access it just like the docs say to

Twitter.sharedInstance().session() 

If the user isn't logged in that method will return nil. If you want to know if someone is already authenticated just check to see if that method returns a value or not.

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