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Processing and Twitter (Read 65233 times)

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 !

fry YaBB Moderator Offline Posts: 2623 mass, usa	Re: Processing and Twitter Reply #1 - Oct 19^th, 2007, 2:00pm please use the mobile board for questions about mobile processing.

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.

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
	- ez

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.

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.

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

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!

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

//--noflux.org--\\&&

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.

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
	//--noflux.org--\\&&

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

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.

chirn9980

Re: Processing and Twitter
Reply #13 - Mar 22^nd, 2009, 12:05am

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??

PhiLho YaBB Moderator Offline Posts: 4190 Near Paris (France)	Re: Processing and Twitter Reply #14 - Mar 22^nd, 2009, 12:42am 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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