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186 lines
6.7 KiB
C++
186 lines
6.7 KiB
C++
/*
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ReadATweet
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Demonstrates retrieving the most recent Tweet from a user's home timeline
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using the Temboo Arduino Yun SDK.
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Check out the latest Arduino & Temboo examples and support docs at http://www.temboo.com/arduino
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A Temboo account and application key are necessary to run all Temboo examples.
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If you don't already have one, you can register for a free Temboo account at
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http://www.temboo.com
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In order to run this sketch, you'll need to register an application using
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the Twitter dev console at https://dev.twitter.com. After creating the
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app, you'll find OAuth credentials for that application under the "OAuth Tool" tab.
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Substitute these values for the placeholders below.
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This example assumes basic familiarity with Arduino sketches, and that your Yun
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is connected to the Internet.
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Looking for social APIs? We've got Facebook, Google+, Instagram, Tumblr and more.
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This example code is in the public domain.
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*/
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#include <Bridge.h>
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#include <Console.h>
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#include <FileIO.h>
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#include <HttpClient.h>
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#include <Process.h>
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#include "TembooAccount.h" // contains Temboo account information
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// as described in the footer comment below
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/*** SUBSTITUTE YOUR VALUES BELOW: ***/
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const String TWITTER_ACCESS_TOKEN = "your-twitter-access-token";
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const String TWITTER_ACCESS_TOKEN_SECRET = "your-twitter-access-token-secret";
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const String TWITTER_CONSUMER_KEY = "your-twitter-consumer-key";
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const String TWITTER_CONSUMER_SECRET = "your-twitter-consumer-secret";
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int numRuns = 0; // execution count, so this sketch doesn't run forever
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int maxRuns = 10; // the max number of times the Twitter HomeTimeline Choreo should run
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void setup() {
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Serial.begin(9600);
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// for debugging, wait until a serial console is connected
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delay(4000);
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while(!Serial);
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Bridge.begin();
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}
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void loop()
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{
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// while we haven't reached the max number of runs...
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if (numRuns < maxRuns) {
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// print status
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Serial.println("Running ReadATweet - Run #" + String(numRuns++) + "...");
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// define the Process that will be used to call the "temboo" client
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Process HomeTimelineChoreo;
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// invoke the Temboo client
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HomeTimelineChoreo.begin("temboo");
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// set Temboo account credentials
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HomeTimelineChoreo.addParameter("-a");
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HomeTimelineChoreo.addParameter(TEMBOO_ACCOUNT);
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HomeTimelineChoreo.addParameter("-u");
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HomeTimelineChoreo.addParameter(TEMBOO_APP_KEY_NAME);
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HomeTimelineChoreo.addParameter("-p");
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HomeTimelineChoreo.addParameter(TEMBOO_APP_KEY);
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// tell the Temboo client which Choreo to run (Twitter > Timelines > HomeTimeline)
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HomeTimelineChoreo.addParameter("-c");
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HomeTimelineChoreo.addParameter("/Library/Twitter/Timelines/HomeTimeline");
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// set the required choreo inputs
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// see https://www.temboo.com/library/Library/Twitter/Timelines/HomeTimeline/
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// for complete details about the inputs for this Choreo
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HomeTimelineChoreo.addParameter("-i");
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HomeTimelineChoreo.addParameter("Count:1"); // the max number of Tweets to return from each request
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// add the Twitter account information
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HomeTimelineChoreo.addParameter("-i");
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HomeTimelineChoreo.addParameter("AccessToken:" + TWITTER_ACCESS_TOKEN);
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HomeTimelineChoreo.addParameter("-i");
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HomeTimelineChoreo.addParameter("AccessTokenSecret:" + TWITTER_ACCESS_TOKEN_SECRET);
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HomeTimelineChoreo.addParameter("-i");
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HomeTimelineChoreo.addParameter("ConsumerSecret:" + TWITTER_CONSUMER_SECRET);
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HomeTimelineChoreo.addParameter("-i");
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HomeTimelineChoreo.addParameter("ConsumerKey:" + TWITTER_CONSUMER_KEY);
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// next, we'll define two output filters that let us specify the
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// elements of the response from Twitter that we want to receive.
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// see the examples at http://www.temboo.com/arduino
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// for more on using output filters
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// we want the text of the tweet
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HomeTimelineChoreo.addParameter("-o");
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HomeTimelineChoreo.addParameter("tweet:/[1]/text:Response");
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// and the name of the author
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HomeTimelineChoreo.addParameter("-o");
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HomeTimelineChoreo.addParameter("author:/[1]/user/screen_name:Response");
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// tell the Process to run and wait for the results. The
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// return code (rc) will tell us whether the Temboo client
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// was able to send our request to the Temboo servers
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unsigned int rc = HomeTimelineChoreo.run();
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// a response code of 0 means success; print the API response
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if(rc == 0) {
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String author; // a String to hold the tweet author's name
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String tweet; // a String to hold the text of the tweet
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// choreo outputs are returned as key/value pairs, delimited with
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// newlines and record/field terminator characters, for example:
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// Name1\n\x1F
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// Value1\n\x1E
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// Name2\n\x1F
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// Value2\n\x1E
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// see the examples at http://www.temboo.com/arduino for more details
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// we can read this format into separate variables, as follows:
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while(HomeTimelineChoreo.available()) {
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// read the name of the output item
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String name = HomeTimelineChoreo.readStringUntil('\x1F');
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name.trim();
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// read the value of the output item
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String data = HomeTimelineChoreo.readStringUntil('\x1E');
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data.trim();
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// assign the value to the appropriate String
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if (name == "tweet") {
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tweet = data;
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} else if (name == "author") {
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author = data;
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}
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}
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Serial.println("@" + author + " - " + tweet);
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} else {
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// there was an error
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// print the raw output from the choreo
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while(HomeTimelineChoreo.available()) {
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Serial.print((char)HomeTimelineChoreo.read());
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}
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}
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HomeTimelineChoreo.close();
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}
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Serial.println("Sleeping...");
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Serial.println("");
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delay(90000); // sleep 90 seconds between HomeTimeline calls
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}
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/*
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IMPORTANT NOTE: TembooAccount.h:
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TembooAccount.h is a file referenced by this sketch that contains your Temboo account information.
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You need to create this file. To do so, make a new tab in Arduino, call it TembooAccount.h, and
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include the following variables and constants:
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#define TEMBOO_ACCOUNT "myTembooAccountName" // your Temboo account name
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#define TEMBOO_APP_KEY_NAME "myFirstApp" // your Temboo app key name
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#define TEMBOO_APP_KEY "xxx-xxx-xxx-xx-xxx" // your Temboo app key
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The same TembooAccount.h file settings can be used for all Temboo SDK sketches.
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You can find your Temboo App Key information on the Temboo website,
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under My Account > Application Keys
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Keeping your account information in a separate file means you can save it once,
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then just distribute the main .ino file without worrying that you forgot to delete your credentials.
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*/
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