HOW TO: Device Cloud: Add Data To A Data Stream

In this example, we will add data to a Data Stream associated with a device ID. We will be using the following web services interface:

• /ws/v1/streams/history

Add Multiple Data Points to a Stream

This scenario is built on top of the example to query data form a device. We will take the data returned for the <system> tag from the device in that example and insert that data to a stream containing the ID of the associated device. 

1. We will begin with the response from the <query_setting> request in the referenced example since we will use that data for this example

   SCI response for RCI <query_setting> request

   <sci_reply version="1.0">   <send_message>     <device id="00000000-00000000-00409DFF-FF000000">       <rci_reply version="1.1">         <query_setting>           <system>             <contact>Me</contact>             <location/>             <description>My DIA Demo</description>           </system>         </query_setting>       </rci_reply>     </device>   </send_message> </sci_reply>

2. Now, take the device ID, <contact> and <description> fields and use that data to construct new content to POST to the /ws/v1/streams/history interface

   POST content for /ws/v1/streams/history request (JSON format)

   [{   "stream_id": "00000000-00000000-00409DFF-FF000000/system/contact",   "stream_type": "STRING",   "value": "Me" },  {    "stream_id": "00000000-00000000-00409DFF-FF000000/system/description",    "stream_type": "STRING",    "value": "My DIA Demo"  }]

   Note: That example uses JSON. You may also use XML syntax

   POST content for /ws/v1/streams/history request (XML format)

   <list>   <datapoint>     <stream_id>00000000-00000000-00409DFF-FF000000/system/contact</stream_id>     <value>Me</value>   </datapoint>   <datapoint>     <stream_id>00000000-00000000-00409DFF-FF000000/system/description</stream_id>     <value>My DIA Demo</value>   </datapoint> </list>

3. Now you can see your new streams in the Data Services section of the UI, or access them using web services (including push monitors)