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208 lines
7.3 KiB
C++
208 lines
7.3 KiB
C++
/*
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UploadToDropbox
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Demonstrates uploading a file to a Dropbox account using Temboo from an Arduino Yún.
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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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You'll also need a valid Dropbox app and accompanying OAuth credentials.
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To create a Dropbox app, visit https://www.dropbox.com/developers/apps and
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do the following:
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1. Create a "Dropbox API app"
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2. Select "Files and datastores"
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3. Select "Yes - my app only needs access to the files it creates."
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Once you've created your app, follow the instructions at
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https://www.temboo.com/library/Library/Dropbox/OAuth/ to run the Initialize and Finalize
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OAuth Choreos. These Choreos complete the OAuth handshake and retrieve your Dropbox OAuth access tokens.
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This example assumes basic familiarity with Arduino sketches, and that your Yún is connected
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to the Internet.
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Looking for another API to use with your Arduino Yún? We've got over 100 in our Library!
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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 <Temboo.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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// Note that for additional security and reusability, you could
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// use #define statements to specify these values in a .h file.
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// your Dropbox app key, available on the Dropbox developer console after registering an app
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const String DROPBOX_APP_KEY = "xxxxxxxxxx";
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// your Dropbox app secret, available on the Dropbox developer console after registering an app
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const String DROPBOX_APP_SECRET = "xxxxxxxxxx";
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// your Dropbox access token, which is returned by the FinalizeOAuth Choreo
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const String DROPBOX_ACCESS_TOKEN = "xxxxxxxxxx";
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// your Dropbox access token secret, which is returned by the FinalizeOAuth Choreo
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const String DROPBOX_ACCESS_TOKEN_SECRET = "xxxxxxxxxx";
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boolean success = false; // a flag to indicate whether we've uploaded the file yet
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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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// only try to upload the file if we haven't already done so
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if (!success) {
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Serial.println("Base64 encoding data to upload...");
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// base64 encode the data to upload
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String base64EncodedData = base64Encode("Hello, Arduino!");
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Serial.println("Uploading data to Dropbox...");
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// we need a Process object to send a Choreo request to Temboo
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TembooChoreo UploadFileChoreo;
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// invoke the Temboo client
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// NOTE that the client must be reinvoked and repopulated with
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// appropriate arguments each time its run() method is called.
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UploadFileChoreo.begin();
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// set Temboo account credentials
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UploadFileChoreo.setAccountName(TEMBOO_ACCOUNT);
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UploadFileChoreo.setAppKeyName(TEMBOO_APP_KEY_NAME);
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UploadFileChoreo.setAppKey(TEMBOO_APP_KEY);
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// identify the Temboo Library choreo to run (Dropbox > FilesAndMetadata > UploadFile)
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UploadFileChoreo.setChoreo("/Library/Dropbox/FilesAndMetadata/UploadFile");
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// set the required choreo inputs
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// see https://www.temboo.com/library/Library/Dropbox/FilesAndMetadata/UploadFile/
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// for complete details about the inputs for this Choreo
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// first specify the name of the file to create/update on Dropbox
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UploadFileChoreo.addInput("FileName", "ArduinoTest.txt");
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// next, the root folder on Dropbox relative to which the file path is specified.
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// to work with the Dropbox app you created earlier, this should be left as "sandbox"
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// if your Dropbox app has full access to your files, specify "dropbox"
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UploadFileChoreo.addInput("Root", "sandbox");
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// next, the Base64 encoded file data to upload
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UploadFileChoreo.addInput("FileContents", base64EncodedData);
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// finally, the Dropbox OAuth credentials defined above
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UploadFileChoreo.addInput("AppSecret", DROPBOX_APP_SECRET);
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UploadFileChoreo.addInput("AccessToken", DROPBOX_ACCESS_TOKEN);
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UploadFileChoreo.addInput("AccessTokenSecret", DROPBOX_ACCESS_TOKEN_SECRET);
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UploadFileChoreo.addInput("AppKey", DROPBOX_APP_KEY);
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// tell the Process to run and wait for the results. The
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// return code (returnCode) 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 returnCode = UploadFileChoreo.run();
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// a return code of zero (0) means everything worked
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if (returnCode == 0) {
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Serial.println("Success! File uploaded!");
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success = true;
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} else {
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// a non-zero return code means there was an error
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Serial.println("Uh-oh! Something went wrong!");
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}
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// print out the full response to the serial monitor in all
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// cases, just for debugging
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while (UploadFileChoreo.available()) {
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char c = UploadFileChoreo.read();
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Serial.print(c);
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}
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UploadFileChoreo.close();
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Serial.println("Waiting...");
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}
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delay(30000); // wait 30 seconds between upload attempts
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}
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/*
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A utility function to Base64 encode the specified string
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by calling a Temboo Utilities Choreo.
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*/
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String base64Encode(String toEncode) {
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// we need a Process object to send a Choreo request to Temboo
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TembooChoreo Base64EncodeChoreo;
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// invoke the Temboo client
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Base64EncodeChoreo.begin();
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// set Temboo account credentials
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Base64EncodeChoreo.setAccountName(TEMBOO_ACCOUNT);
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Base64EncodeChoreo.setAppKeyName(TEMBOO_APP_KEY_NAME);
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Base64EncodeChoreo.setAppKey(TEMBOO_APP_KEY);
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// identify the Temboo Library choreo to run (Utilities > Encoding > Base64Encode)
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Base64EncodeChoreo.setChoreo("/Library/Utilities/Encoding/Base64Encode");
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// set choreo inputs
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Base64EncodeChoreo.addInput("Text", toEncode);
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// run the choreo
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Base64EncodeChoreo.run();
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// read in the choreo results, and return the "Base64EncodedText" output value.
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// see http://www.temboo.com/arduino for more details on using choreo outputs.
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while (Base64EncodeChoreo.available()) {
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// read the name of the output item
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String name = Base64EncodeChoreo.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 = Base64EncodeChoreo.readStringUntil('\x1E');
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data.trim();
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if (name == "Base64EncodedText") {
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return data;
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}
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}
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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'll need to edit the placeholder version of TembooAccount.h included with this example sketch,
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by inserting your own Temboo account name and app key information. The contents of the file should
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look like:
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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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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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The same TembooAccount.h file settings can be used for all Temboo SDK sketches.
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Keeping your account information in a separate file means you can share the main .ino file without worrying
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that you forgot to delete your credentials.
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*/
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