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Merged
merged 5 commits into from
Jul 14, 2013
Merged

Work on Twitter recipe #133

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dbcf0ed
Rescope for adding more features of the lib
tobiasbayer Jul 10, 2013
59df0cb
Rename because of scope change
tobiasbayer Jul 10, 2013
c9eaaba
Add example for streaming
tobiasbayer Jul 12, 2013
5e8227d
Reformat library name
tobiasbayer Jul 12, 2013
810b6d0
Add footnote for Twitter OAuth key retrieval
tobiasbayer Jul 13, 2013
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33 changes: 26 additions & 7 deletions ...tus-update/twitter-status-update.asciidoc → network-io/twitter-api/twitter-api.asciidoc
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@@ -1,9 +1,9 @@
==== Send a Twitter Status Update
==== Using the Twitter API
// By Tobias Bayer (codebrickie)

===== Problem

You want to send a status update to Twitter on behalf of a Twitter user.
You want to connect to Twitter and use its API.

===== Solution

Expand All @@ -18,8 +18,7 @@ Include the wrapper in your project file:
:dependencies [[twitter-api "0.7.4"]])
----

This recipe assumes you have already retrieved an OAuth consumer key and secret for your app from Twitter and an access token and secret for the user.
SEE RECIPE XYZ ON HOW TO RETRIEVE AN ACCESS TOKEN VIA OAUTH.
This recipe assumes you have already retrieved an OAuth footnote:[See the Twitter documentation on how to receive OAuth credentials at https://dev.twitter.com/docs/auth/obtaining-access-tokens] consumer key and secret for your app from Twitter and an access token and secret for the user. Make sure your app has read/write access in order to post status updates.

Define your keys and secrets and send the status update request to Twitter:

Expand All @@ -36,12 +35,12 @@ Define your keys and secrets and send the status update request to Twitter:
(statuses-update :oauth-creds credentials :params {:status "Hi there, I am sending this tweet from Clojure!"})
;; -> {:status {:code 200, :msg "OK",...
----


===== Discussion

Twitter-api offers more than just sending status updates.
The structure of function calls basically remains the same. Twitter-api functions take the credentials and request parameters as arguments.
++twitter-api++ offers more than just sending status updates.
The structure of function calls basically remains the same. ++twitter-api++ functions take the credentials and request parameters as arguments.

For example, you can show user details with ++users-show++:

Expand All @@ -51,5 +50,25 @@ For example, you can show user details with ++users-show++:
;; -> ...:id 40514394, :profile_background_image_url_https "https://si0.twimg.com/images/themes/theme1/bg.png", :description "Without being overly modest, you can read this because of me.", :profile_text_color "333333", :screen_name "Alan_M_Turing"...
----

Using Twitter's streaming feature for reading a user's timeline is also possible.
First you should define a callback function that will be called later every time a new tweet is received:

[source,clojure]
----
(use '[twitter.api.streaming] '[twitter.callbacks] '[twitter.callbacks.handlers])
(import '(twitter.callbacks.protocols AsyncStreamingCallback))

(def ^:dynamic *print-status-callback*
(AsyncStreamingCallback. #(println %2) nil nil))
----

This function simply prints the raw output stream to the console.
Now request the user stream and provide your callback:

[source,clojure]
----
(user-stream :oauth-creds credentials :callbacks *print-status-callback*)
----

===== See Also
See the https://github.com/adamwynne/twitter-api[twitter-api documentation] for more details.