Hey have you done this? I'm trying to use twitter4j and its streaming attribute..seeing if anyone has got this going? 

THank you neufuture, I have a few question.

I have read about oAuth but how do I get the authentication key? what is the process as I don't have a name for my application since im just making something random and haven't thought about a name.

I sent them an email and they referred me a link to the api doc

can you enlighten me on that?

does you code directly interact with the streaming API or it does it through the twitter4j library?

Does it search for all the tweets or only retrieve the popular ones?     

thank you

You need to make an application to be able to use any of twitters API. You can always change the details and name for it later, so just come up with something to test with (like "test application"). Once you've created you app it will bring you to a page that give you all your oauth keys. You'll also have to hit the button on that page that creates your own access tokens.

i'm having trouble with the twitter4j-stream-2.2.5 portion of the library. I cribbed a lot from your code here.

I've successfully coded & run a search API in Processing using twitter4j 2.2.5 core so I have that library installed right. I installed all libs from the 2.2.5 zipfile the same way: (paths relative to Processing's dir on Windows 7)

libraries/twitter4jcore/library/twitter4jcore.jar
libraries/twitter4jstreaming/library/twitter4jstreaming.jar

... likewise async and media-support.


I coded a search API program using twitter4j-core functions and that works fine. The stream-specific classes fail. This two-line Processing source file demonstrates the problem:


import twitter4j.*;
TwitterStream ts;



I am certain that the lib 'import's are incorrect but i have no idea what *is* correct for the stream lib.


In the Processing IDE, if I do Sketch -> Import library I see the twitter4j libs OK.  Sketch->Import library->twitter4jcore inserts the following into my source file:

import twitter4j.conf.*;
import twitter4j.internal.async.*;
import twitter4j.internal.org.json.*;
import twitter4j.internal.logging.*;
import twitter4j.json.*;
import twitter4j.internal.util.*;
import twitter4j.management.*;
import twitter4j.auth.*;
import twitter4j.api.*;
import twitter4j.util.*;
import twitter4j.internal.http.*;
import twitter4j.*;
import twitter4j.internal.json.*;


However, Sketch->Import library->twitter4jstream inserts only one line:

import twitter4j.*;


So where are the library defs for the Stream classes stored?


PS: I'm an experienced programmer, but new to Processing and Java.

Have you tried running the code I posted on git hub? import twitter4j.* should provide everything you need because the .* includes everything within that class. 

NEVER MIND. problem solved. there appears to be a lot unsaid about Processing sketchbook library arrangement.

i rm'd all of the twitter4j libs i'd installed and started again from the zip file.

for the record, this is what is currently working and installed:


*** TWITTER4J 2.2.5 LIBRARY INSTALL ---------------------------------------------------------------------

Not exactly as described in http://wiki.processing.org/w/How_to_Install_a_Contributed_Library

Windows 7, therefore sketchbook lib dir  is C:/Users/USERNAME/Documents/Processing/libraries

* created directory twitter4j225
* created subdir library
* to twitter4j225/library i copied the five jar files: 
    twitter4j-core-2.2.5.jar
    twitter4j-async-2.2.5.jar
    twitter4j-examples-2.2.5.jar
    twitter4j-media-support-2.2.5.jar
    twitter4j-stream-2.2.5.jar

* THEN i renamed twitter4j-core-2.2.5.jar to twitter4j225.jar (same as 'libraries' dir name as required) so that the complete path to it is

C:/Users/USERNAME/Documents/Processing/libraries/twitter4j225/library/twitter4j225.jar


that made this work. according to my read of the Processing wiki, this is wrong; each of the other libs (async, stream, etc) should be in their own folder in Processing/libraries, in this scheme, twitter4j225async, twitter4jstream, etc. But that DID NOT WORK. (Plus the wiki sort of implies you must have examples, reference and src dirs, which is silly. I guess I should make an edit.)

(I really hate that Processing can't tolerate dot and dash in the dir and jar names. Seriously, wtf? it makes library update and maintenance needlessly difficult. Is there any current filesystem that cannot accept 'package-lib-1.2.3.jar'?)

*** PROCESSING SOURCE CODE: ------------------------------------------------------------------------------------------------------

banal and obvious; the imports for 'twitter4j225'

import twitter4j.conf.*;
import twitter4j.internal.async.*;
import twitter4j.internal.org.json.*;
import twitter4j.internal.logging.*;
import twitter4j.json.*;
import twitter4j.internal.util.*;
import twitter4j.management.*;
import twitter4j.auth.*;
import twitter4j.api.*;
import twitter4j.util.*;
import twitter4j.internal.http.*;
import twitter4j.*;
import twitter4j.internal.json.*;


At some point I will post my entire working streaming API filter app. It is essentially a stripped down version of neufuture's github program at the moment but it will get modified to deal with dropped connections and restarts, logging in a CVS spreadsheet and all that rot.

First thanks neufuture for this example, very helpful and also an amazing way of interacting with twitter. Love it!

Hi everybody !

I have a problem with the TwitterStream class, it seems that it no longer exists. I wrote this:

1.   TwitterStream twitter = new TwitterStreamFactory(cb.build()).getInstance();

And I get "Cannot find a class or type named "TwitterStream" ".
I have all my consumerkey and access token, the simple Twitter class works well, but it only supports a maximum of 100 query ...

Anybody have an idea if the syntax had changed or something ? I looked on the twitter4j javadoc, but didn't find anything very helpful ( I'm french, so when it gets to real technical doc I'm getting quite lost ...).

Thank you for your help, and excuse my english.

H.

Hi All!

Great !
Thank you, I found some interesting things in here.

Based on neufuture's great example I edited SimpleTwitterStream.pde and asked it to display the images as tiles. Check it out here.

Big thanks to all the helpful comments here

when commenting out all of the images sources, minus instagram, I it seems apparent the format of the streaming images is not the standards instagram restricts. you would expect all of the images to import to a specific, consistant scale. Am I missing something?

Not sure I understand your comment. Are you talking about resolution of the images? Images come in raw at whatever their original aspect ratio/size is. If you'd like to restrict them, you'd do that in code. Does this answer it?

Does this answer it?

no. So let me clarify; When a user posts an image from the instagram app, they are forced to crop their image to post on the instagram website. with me?

Hey neofuture! Awesome code!
I'm trying to figure out a way to track [filter] certain hashtags and have them output sound every time they are tweeted... your code is great but how can i make it filter all the tweets not just ones with images?

OMG YES!!!!!! IT WORKS!!!! I even got it to trigger my audio file!!!! Thank you!!!!

I do have another question... Will i be able to track multiple hashtags and assign each a different sound? Is there a matrix i have to create?

I'm struggling a little bit to understand how to/what you mean by parsing it out. I tried to add listeners in the code but that failed... so i'm a little lost.

Very interesting. Thanks a lot.

Is there a way to print out only the tweets without the word without the hashtag and the images?