Processing 1.0 - Processing and Twitter

modjibee

Processing and Twitter
Oct 18^th, 2007, 8:41pm

Hi

Has somebody done a processing program using the twitter's api ?

if(key=='1'){
background(255);
twitter= new PClient(this,"http://www.twitter.com",80);
requete_twitter = twitter.POST("http://login:pass@twitter.com:80/statuses/update.xml",var2,val2);
requete_twitter = twitter.GET("http://assets1.twitter.com/javascripts/prototype.js?1192587430");
requete_twitter = twitter.POST("http://twitter.com/statuses/update.xml",var2,val2);
noLoop();
}

this don't work... I don't know why !

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fry YaBB Moderator Offline Posts: 2608 mass, usa	Re: Processing and Twitter Reply #1 - Oct 19^th, 2007, 2:00pm please use the mobile board for questions about mobile processing.
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lucasa YaBB Newbies Offline Posts: 1	Re: Processing and Twitter Reply #2 - Nov 13^th, 2007, 5:45pm I need this information too. Today I can load rss feeds, but i need twitter support too.
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prisonerjohn YaBB Newbies Offline Posts: 33	Re: Processing and Twitter Reply #3 - Dec 8^th, 2007, 5:14pm i am actually working on a Twitter application using Processing/Java, and I am using the Twitter4J library (http://yusuke.homeip.net/twitter4j/en/index.html) and it works really well... solid and complete. i might as well plug my project here too http://silentlycrashing.net/tweetpad
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Kars YaBB Newbies Offline Posts: 8 Denmark	Re: Processing and Twitter Reply #4 - May 11^th, 2008, 8:01pm Thanks for posting your stuff prisonerjohn! TweetPad looks cool. The Twitter4J library was just what I needed for my own little project.
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Kars

Re: Processing and Twitter
Reply #5 - May 12^th, 2008, 7:42pm

Well I have been playing around with Twitter4J a little, but got stuck pretty quickly. Here's what I have so far:

Code:

 
Twitter twitter;
int friendCount;
User[] friends;

twitter = new Twitter("myusername","mypassword");

try { 
  friendCount = twitter.getFriends().size();
  friends = new User[friendCount];
  
  for (int i = 0; i < friendCount; i++) {
    friends[i] = twitter.getFriends().get(i);
  }
} 
catch (TwitterException e) {
  println(e.getStatusCode());
}

Which does not run. In stead I get:

Quote:

/tmp/build30734.tmp/Temporary_4468_9865.java:12:5:12:44: Semantic Error: The type of the right sub-expression, "java.lang.Object", is not assignable to the variable, of type "twitter4j.User".

Anyone have an idea what's going on? The Twitter4J JAR is in my code folder.

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prisonerjohn

Re: Processing and Twitter
Reply #6 - May 12^th, 2008, 9:52pm

Hi Kars,

Twitter.getFriends() returns a List of Users (List<User>) but this parametrization (is that a word?) is not available in Processing, since it's running in Java 1.4 and not 1.5+

Try this instead
Code:


...
  for (int i = 0; i < friendCount; i++) { 
    friends[i] = (User)twitter.getFriends().get(i); 
  } 
...

to tell Processing that the Object returned by List.get() is a User.

- ez

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Kars YaBB Newbies Offline Posts: 8 Denmark	Re: Processing and Twitter Reply #7 - May 12^th, 2008, 10:35pm Wonderful Elie, that's working like a charm. I figured it had something to do with that List interface, but couldn't figure it out. Thanks a lot!
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noflux

Re: Processing and Twitter
Reply #8 - Oct 8^th, 2008, 9:25pm

Can someone help me with twitter4j?

When using the methods like: twitter.getFriendsTimeline() or twitter.getFriends()

the results that i retrive are something like this(for the statuses using getFriendsTimeline()): twitter4j.Status@362a63...

Can someone help me understanding this data? .. how can i retrieve user's "names" and their updates?

thanx

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PhiLho

Re: Processing and Twitter
Reply #9 - Oct 10^th, 2008, 3:01pm

You should look, if not already done, at the library's API doc: http://yusuke.homeip.net/twitter4j/en/javadoc/index.html

getFriends returns a list of User objects, getFriendsTimeline returns a list of Status objects.
Apparently these objects have no toString implemented, so when you print them, you get a generic Java answer showing the class name and some ID of the instance you look at.

If you have a status object, you can print status.getCreatedAt() and status.getText() to have some info.
If you have a user object, you can print user.getName() and user.getDescription(), among other things.
Look at Status and User pages of the above doc. for more.

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noflux YaBB Newbies Offline Posts: 6	Re: Processing and Twitter Reply #10 - Oct 10^th, 2008, 3:46pm Thanx for all the help. Kars already showed me how to access the data. I'm currently retrieving all that i want . Thanx all
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JBX028 YaBB Newbies Offline Posts: 3	Re: Processing and Twitter Reply #11 - Jan 27^th, 2009, 9:13pm Any one of you could explain to me how to install Twitter4j because this library is not written for processing and there is no directory named 'Librairie'. Thanks, Johnny
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Kars YaBB Newbies Offline Posts: 8 Denmark	Re: Processing and Twitter Reply #12 - Jan 28^th, 2009, 5:07pm Drag the .jar file onto your sketch window. It should be added to the code folder of that sketch. That's it, you're good to go.
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chirn9980

Re: Processing and Twitter
Reply #13 - Mar 22^nd, 2009, 1:05am

Hello, Trying to get up and running with twitter and processing. I am trying to run the hello world program

Twitter twitter;
int friendCount;
User[] friends;

twitter = new Twitter("twitterid","twitterpswd");
Status status1 = twitter.update("hello");

and it give me an Unhandled exception type TwitterException

No idea whats going on??

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PhiLho YaBB Moderator Offline Posts: 3202	Re: Processing and Twitter Reply #14 - Mar 22^nd, 2009, 1:42am Unhandled exception means a method call might throw an exception, if something wrong can happen: lot of bad things can happen on network access! Look at Reply #5, Kars surrounds the call with a try/catch.
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