1 | /*
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2 | UploadToDropbox
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3 |
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4 | Demonstrates uploading a file to a Dropbox account using Temboo from an Arduino Y炭n.
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5 |
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6 | Check out the latest Arduino & Temboo examples and support docs at http://www.temboo.com/arduino
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7 |
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8 | A Temboo account and application key are necessary to run all Temboo examples.
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9 | If you don't already have one, you can register for a free Temboo account at
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10 | http://www.temboo.com
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11 |
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12 | You'll also need a valid Dropbox app and accompanying OAuth credentials.
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13 | To create a Dropbox app, visit https://www.dropbox.com/developers/apps and
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14 | do the following:
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15 |
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16 | 1. Create a "Dropbox API app"
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17 | 2. Select "Files and datastores"
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18 | 3. Select "Yes - my app only needs access to the files it creates."
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19 |
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20 | Once you've created your app, follow the instructions at
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21 | https://www.temboo.com/library/Library/Dropbox/OAuth/ to run the Initialize and Finalize
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22 | OAuth Choreos. These Choreos complete the OAuth handshake and retrieve your Dropbox OAuth access tokens.
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23 |
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24 | This example assumes basic familiarity with Arduino sketches, and that your Y炭n is connected
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25 | to the Internet.
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26 |
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27 | Looking for another API to use with your Arduino Y炭n? We've got over 100 in our Library!
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28 |
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29 | This example code is in the public domain.
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30 | */
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31 |
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32 | #include <Bridge.h>
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33 | #include <Temboo.h>
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34 | #include "TembooAccount.h" // contains Temboo account information
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35 | // as described in the footer comment below
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36 |
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37 |
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38 | /*** SUBSTITUTE YOUR VALUES BELOW: ***/
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39 |
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40 | // Note that for additional security and reusability, you could
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41 | // use #define statements to specify these values in a .h file.
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42 |
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43 | // your Dropbox app key, available on the Dropbox developer console after registering an app
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44 | const String DROPBOX_APP_KEY = "xxxxxxxxxx";
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45 |
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46 | // your Dropbox app secret, available on the Dropbox developer console after registering an app
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47 | const String DROPBOX_APP_SECRET = "xxxxxxxxxx";
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48 |
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49 | // your Dropbox access token, which is returned by the FinalizeOAuth Choreo
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50 | const String DROPBOX_ACCESS_TOKEN = "xxxxxxxxxx";
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51 |
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52 | // your Dropbox access token secret, which is returned by the FinalizeOAuth Choreo
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53 | const String DROPBOX_ACCESS_TOKEN_SECRET = "xxxxxxxxxx";
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54 |
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55 |
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56 | boolean success = false; // a flag to indicate whether we've uploaded the file yet
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57 |
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58 | void setup() {
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59 | Serial.begin(9600);
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60 |
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61 | // For debugging, wait until a serial console is connected.
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62 | delay(4000);
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63 | while(!Serial);
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64 | Bridge.begin();
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65 | }
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66 |
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67 | void loop()
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68 | {
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69 | // only try to upload the file if we haven't already done so
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70 | if (!success) {
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71 |
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72 | Serial.println("Base64 encoding data to upload...");
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73 |
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74 | // base64 encode the data to upload
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75 | String base64EncodedData = base64Encode("Hello, Arduino!");
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76 |
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77 |
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78 | Serial.println("Uploading data to Dropbox...");
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79 |
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80 | // we need a Process object to send a Choreo request to Temboo
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81 | TembooChoreo UploadFileChoreo;
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82 |
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83 | // invoke the Temboo client
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84 | // NOTE that the client must be reinvoked and repopulated with
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85 | // appropriate arguments each time its run() method is called.
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86 | UploadFileChoreo.begin();
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87 |
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88 | // set Temboo account credentials
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89 | UploadFileChoreo.setAccountName(TEMBOO_ACCOUNT);
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90 | UploadFileChoreo.setAppKeyName(TEMBOO_APP_KEY_NAME);
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91 | UploadFileChoreo.setAppKey(TEMBOO_APP_KEY);
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92 |
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93 | // identify the Temboo Library choreo to run (Dropbox > FilesAndMetadata > UploadFile)
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94 | UploadFileChoreo.setChoreo("/Library/Dropbox/FilesAndMetadata/UploadFile");
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95 |
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96 | // set the required choreo inputs
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97 | // see https://www.temboo.com/library/Library/Dropbox/FilesAndMetadata/UploadFile/
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98 | // for complete details about the inputs for this Choreo
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99 |
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100 | // first specify the name of the file to create/update on Dropbox
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101 | UploadFileChoreo.addInput("FileName", "ArduinoTest.txt");
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102 |
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103 | // next, the root folder on Dropbox relative to which the file path is specified.
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104 | // to work with the Dropbox app you created earlier, this should be left as "sandbox"
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105 | // if your Dropbox app has full access to your files, specify "dropbox"
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106 | UploadFileChoreo.addInput("Root","sandbox");
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107 |
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108 | // next, the Base64 encoded file data to upload
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109 | UploadFileChoreo.addInput("FileContents", base64EncodedData);
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110 |
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111 | // finally, the Dropbox OAuth credentials defined above
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112 | UploadFileChoreo.addInput("AppSecret", DROPBOX_APP_SECRET);
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113 | UploadFileChoreo.addInput("AccessToken", DROPBOX_ACCESS_TOKEN);
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114 | UploadFileChoreo.addInput("AccessTokenSecret", DROPBOX_ACCESS_TOKEN_SECRET);
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115 | UploadFileChoreo.addInput("AppKey", DROPBOX_APP_KEY);
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116 |
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117 | // tell the Process to run and wait for the results. The
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118 | // return code (returnCode) will tell us whether the Temboo client
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119 | // was able to send our request to the Temboo servers
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120 | unsigned int returnCode = UploadFileChoreo.run();
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121 |
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122 | // a return code of zero (0) means everything worked
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123 | if (returnCode == 0) {
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124 | Serial.println("Success! File uploaded!");
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125 | success = true;
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126 | } else {
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127 | // a non-zero return code means there was an error
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128 | Serial.println("Uh-oh! Something went wrong!");
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129 | }
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130 |
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131 | // print out the full response to the serial monitor in all
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132 | // cases, just for debugging
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133 | while (UploadFileChoreo.available()) {
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134 | char c = UploadFileChoreo.read();
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135 | Serial.print(c);
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136 | }
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137 | UploadFileChoreo.close();
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138 |
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139 | Serial.println("Waiting...");
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140 | }
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141 |
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142 | delay(30000); // wait 30 seconds between upload attempts
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143 | }
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144 |
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145 |
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146 | /*
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147 | A utility function to Base64 encode the specified string
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148 | by calling a Temboo Utilities Choreo.
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149 | */
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150 | String base64Encode(String toEncode) {
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151 |
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152 | // we need a Process object to send a Choreo request to Temboo
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153 | TembooChoreo Base64EncodeChoreo;
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154 |
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155 | // invoke the Temboo client
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156 | Base64EncodeChoreo.begin();
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157 |
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158 | // set Temboo account credentials
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159 | Base64EncodeChoreo.setAccountName(TEMBOO_ACCOUNT);
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160 | Base64EncodeChoreo.setAppKeyName(TEMBOO_APP_KEY_NAME);
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161 | Base64EncodeChoreo.setAppKey(TEMBOO_APP_KEY);
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162 |
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163 | // identify the Temboo Library choreo to run (Utilities > Encoding > Base64Encode)
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164 | Base64EncodeChoreo.setChoreo("/Library/Utilities/Encoding/Base64Encode");
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165 |
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166 | // set choreo inputs
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167 | Base64EncodeChoreo.addInput("Text", toEncode);
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168 |
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169 | // run the choreo
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170 | Base64EncodeChoreo.run();
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171 |
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172 | // read in the choreo results, and return the "Base64EncodedText" output value.
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173 | // see http://www.temboo.com/arduino for more details on using choreo outputs.
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174 | while(Base64EncodeChoreo.available()) {
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175 | // read the name of the output item
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176 | String name = Base64EncodeChoreo.readStringUntil('\x1F');
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177 | name.trim();
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178 |
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179 | // read the value of the output item
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180 | String data = Base64EncodeChoreo.readStringUntil('\x1E');
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181 | data.trim();
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182 |
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183 | if(name == "Base64EncodedText") {
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184 | return data;
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185 | }
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186 | }
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187 | }
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188 |
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189 | /*
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190 | IMPORTANT NOTE: TembooAccount.h:
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191 |
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192 | TembooAccount.h is a file referenced by this sketch that contains your Temboo account information.
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193 | You'll need to edit the placeholder version of TembooAccount.h included with this example sketch,
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194 | by inserting your own Temboo account name and app key information. The contents of the file should
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195 | look like:
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196 |
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197 | #define TEMBOO_ACCOUNT "myTembooAccountName" // your Temboo account name
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198 | #define TEMBOO_APP_KEY_NAME "myFirstApp" // your Temboo app key name
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199 | #define TEMBOO_APP_KEY "xxx-xxx-xxx-xx-xxx" // your Temboo app key
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200 |
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201 | You can find your Temboo App Key information on the Temboo website,
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202 | under My Account > Application Keys
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203 |
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204 | The same TembooAccount.h file settings can be used for all Temboo SDK sketches.
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205 |
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206 | Keeping your account information in a separate file means you can share the main .ino file without worrying
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207 | that you forgot to delete your credentials.
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208 | */
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