Parsing twitter api JSON in Swift

Question

I am using Twitter-Kit/Fabric to get a response from the twitter api. It returns a JSON of the following format - https://dev.twitter.com/rest/reference/get/search/tweets

My query is - https://api.twitter.com/1.1/search/tweets.json?q=""&geocode=lat,long,radius&count=15

I need to extract the text and the coordinates from the JSON to plot those tweets on a map.

What am I doing wrong with the following code - ?

Twitter.sharedInstance().APIClient.sendTwitterRequest(request) {
                    (response, data, connectionError) -> Void in
        if (connectionError == nil) {
            var jsonError : NSError?
            let parsedResult  =
            NSJSONSerialization.JSONObjectWithData(data,
                            options: nil,
                            error: &jsonError) as NSDictionary
            println(parsedResult)
            if let tweets = parsedResult["statuses"] as? NSDictionary {
               for tweetsDict in tweets {
                   let title = tweetsDict["text"] as NSString
                   println("text: \(title)")
                   let coordinates = tweetsDict["coordinates"]
                   println("coordinates: \(coordinates)\n")
               }
            }else {
                   println("Error: \(connectionError)")
             }

         }

My code runs till println(parsedResult) as I'm getting a valid response from the twitter api. However I'm having trouble extracting the tweet text from the JSON response.

Answer 1

If you are using Fabric, you can create tweet objects from the response using TWTRTweet method

+ (NSArray *)tweetsWithJSONArray:(NSArray *)array;

It creates an array of TWTRTweet instances from the array of Twitter API JSON response.

NSArray *tweetData = [TWTRTweet tweetsWithJSONArray:responseFromTwitter];
[tableview  reloadData];

You can use tweet objects to populate in tableview in cellForRowAtIndexPath. To return a tweet cell,

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
   static NSString *cellID = @"TweetCell";


    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellID forIndexPath:indexPath];

        TWTRTweet *tweet = twitterResponse[indexPath.row];
        [(TWTRTweetTableViewCell *)cell configureWithTweet:tweet];

    return cell;
}

EDIT

In Swift, you can do as:

// Create an array of tweet model objects from a JSON array
tweetData = TWTRTweet.tweetsWithJSONArray(responseFromTwitter)
tableView.reloadData()

//create Tweet cells

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
      let tweet = tweetData[indexPath.row]
      let cell = tableView.dequeueReusableCellWithIdentifier(tweetTableReuseIdentifier, forIndexPath: indexPath) as TWTRTweetTableViewCell
      cell.configureWithTweet(tweet)

      return cell
  }

Hope it helps!

Reference taken from here

Answer 2

There is a little error with you code Use this code it work best for me , set this code in certain function on button action

 Twitter.sharedInstance().APIClient.sendTwitterRequest(request) {
                    (response, data, connectionError) -> Void in
        if (connectionError == nil) {
            var jsonError : NSError?
            let parsedResult  =
            NSJSONSerialization.JSONObjectWithData(data,
                            options: nil,
                            error: &jsonError) as NSDictionary
            println(parsedResult)
            if let tweets = parsedResult["status"] as? NSDictionary {
                 println(tweets)
               for tweetsDict in tweets {
                   let title = tweetsDict["text"] as NSString
                   println("text: \(title)")
                   let coordinates = tweetsDict["coordinates"]
                   println("coordinates: \(coordinates)\n")
               }
            }else {
                   println("Error: \(connectionError)")
             }

         }