Tag: API

Posted on

Ruby tweetstream gem

Access to the Twitter streaming API

notes

This gem looks to be a possible solution for connecting Max to Google Maps. I’m guessing that the code will look very similar to the ruby code which uses the twitter gem for status updates.

https://github.com/tweetstream/tweetstream

Here’s a blog entry:

http://thechangelog.com/tweetstream-easily-access-the-twitter-streaming-api/

Client documentation:

http://rdoc.info/github/intridea/tweetstream/TweetStream/Client

Here’s the Twitter documentation on whats getting returned:

https://dev.twitter.com/docs/platform-objects/tweets

 

Posted on

Getting started with Google Maps

Installed working example at:

http://zerokidz.com/gmap/map-simple.html

The Google static map API:

https://developers.google.com/maps/documentation/staticmaps/#quick_example

The tracks API:

https://developers.google.com/maps/documentation/tracks/

Simple Google Maps example from Jayway:

http://www.jayway.com/2012/04/02/simple-google-maps-api-example/

Yet another example using geolocation:

http://www.sitepoint.com/working-with-geolocation-and-google-maps-api/

Got this one working, sort of, here:

http://zerokidz.com/gmap/geolocation.html

 

Posted on

Max Twitter client using ruby

Send and receive Tweets using Max via OSC to a background ruby server.

An advantage of this method is that both the patch and the server are  compact and easy to understand. The Max patch does things in a Max way. And likewise with the ruby scripts.

download

https://github.com/tkzic/internet-sensors

folder: twitter-ruby

files

Max
  • twitter-client.maxpat
ruby
  • twitter-server-send.rb (for sending Tweets)
  • twitter-server-get.rb (for receiving Tweets)
ruby gems

The ruby script requires installation of the following gems

  • json
  • osc-ruby
  • twitter

For example:

# sudo gem install twitter




Twitter authorization


In addition to having a Twitter account, you will need to set up a Twitter application from the developer site here:


https://dev.twitter.com/apps


Good instructions on how to do this can be found in this stackoverflow.com post under this heading: So you want to use the Twitter v1.1 API?


http://stackoverflow.com/questions/12916539/simplest-php-example-for-retrieving-user-timeline-with-twitter-api-version-1-1


When you get to step 5 – in the instructions – instead of writing your own code, just use a text editor to copy your access tokens into these ruby programs:


    

  • twitter-server-send.rb
    • 

  • twitter-server-get.rb
    • 



Replace the strings in this line of code by copying and pasting the appropriate ones from your Twitter application:








twitterClient = Twitter::REST::Client.new do |config|
  config.consumer_key = "mqQtoYh16343tDFG3BK7QQ"       
  config.consumer_secret = "X0KexjlK49fhhrnn9EztapZfATCQqWCc5fXVJH2pE"      
  config.oauth_token = "205589709-5krgh9FR3KkLGRDnewiU7GKKBMA6i2La84c"       
  config.oauth_token_secret = "LNARAeooN2vkklkF006GRdihQ5D8YYkm8dYvEs68M"  
end






Yeah – its cryptic, but trivial compared to writing the ouath code. Just a reminder, if even one letter or quote mark, or anything is out of place, the authorization will fail.






instructions


(note: currently running with ruby version 2.0) Display your ruby version by typing: ruby –version


Sending Tweets


    

  • Open the Max patch: twitter-client.maxpat
    • 

  • In a terminal window run the ruby script:
    • 





# ./twitter-server-send.rb






    

  • In the Max patch, type in a Tweet. Press the green button to send. 
    • 



    

  • When you have tweeted enough, end the ruby server program by typing <ctrl-c>
    • 



 Receiving Tweets


    

  • Open the Max patch: twitter-client.maxpat
    • 

  • In a terminal window run the ruby script:
    • 

  • From Twitter, send a Tweet to the user name embedded in the server
    • 





# ./twitter-server-get.rb




Both ruby servers can run at the same time.


What’s next?


    

  • Parse incoming Tweets into various components
    • 

  • Combine the 2 Ruby servers
    • 



revision history


    

  • 5/21/2014 – refactored app names. Added receive server
    • 

  • 5/19/2004 – moved to twitter-ruby folder
    • 

  • 1/18/2014 – minor fixes to ruby server for current ruby version 2.0
    • 

  • 9/7/2013 – uses oauth to communicate directly to Twitter from ruby
    • 


	


	





		

		
Posted on 
Send Tweets with a Little Tikes piano
	


	
	

		


This project uses the Max fzero~ object to detect which key of the piano gets pressed and send a pre-written Tweet like “Signs point to yellow” based on the color of the key.


It works with the Internet sensors project that sends Tweets from Max using Ruby. https://reactivemusic.net/?p=7013




download


https://github.com/tkzic/internet-sensors


folder: twitter-ruby


instructions


    

  1. Follow instructions here to send Tweets using Max and Ruby: https://reactivemusic.net/?p=7013
    2. 

  2. At this point you will have a Max patch open and a Ruby server running in a terminal window.
    3. 

  3. Now open little-tikes.maxpat
    4. 

  4. Carefully play individual tones on the Little Tikes piano. 
    5. 





notes


fzero~ is probably not the best choice for this. It doesn’t work above 2500hz which means it won’t probably distinguish between the lowest and highest key which are an octave apart. In fact the Little-Tikes piano, for a pitched instrument, is difficult to analyze. Due to relatively equal weight of partials to fundamental, and the quick decay. Other choices, would be pitch~ (Jehan) fiddle~ (Pucket…)


I remember seeing an Arduino project where somebody did this in reverse – actually built a motorized striker to play the piano)


… insert link to video here…


 

	


	





		

		
Posted on 
Tweet from Max with ruby
	


	
	

		
Update 6/2014: working version here: https://reactivemusic.net/?p=7013


notes


The zapier.com trigger method of sending tweets from Max is limited by number of tweets and sync rate. So it would be nice to set up another intermediary server program in ruby or php which eliminates the middle-man and just sends tweets directly.


Or you could use the mxj searchTweet program, which has been updated to do this on the search side.


twitter gem


update: Got it working with this gem: https://github.com/sferik/twitter. Its much easier than dealing with xively.


docs: http://rdoc.info/gems/twitter


how to destroy a tweet: http://stackoverflow.com/questions/10640811/twitter-gem-how-to-get-the-id-of-a-new-tweet


how to get a timeline: http://bobbyprabowo.wordpress.com/2010/01/01/simple-twitter-gem-tutorial/


example of error handling code:


MAX_ATTEMPTS = 3
num_attempts = 0
begin
  num_attempts += 1
  retweets = Twitter.retweeted_by_user("sferik")
rescue Twitter::Error::TooManyRequests => error
  if num_attempts <= MAX_ATTEMPTS
    # NOTE: Your process could go to sleep for up to 15 minutes but if you
    # retry any sooner, it will almost certainly fail with the same exception.
    sleep error.rate_limit.reset_in
    retry
  else
    raise
  end
end


 


Another useful SO post: http://stackoverflow.com/questions/16618037/twitter-rate-limit-hit-while-requesting-friends-with-ruby-gem/16620639#16620639