thingspeak/app/views/docs/channels/_field.html.erb

<div>
  <%= render 'response' %>
  <h2 id="get_field">Get a Channel Field Feed</h2>
</div>

<br>
To view a Channel's field feed, send an HTTP GET to <code><%= @ssl_api_domain %>channels/<span class="customcode">CHANNEL_ID</span>/fields/<span class="customcode">FIELD_ID</span><span class="format format-json">.json</span><span class="format format-xml">.xml</span></code> ,
replacing <span class="customcode">CHANNEL_ID</span> with the ID of your Channel and <span class="customcode">FIELD_ID</span> with the ID of your field.

<br><br>
Valid parameters:
<ul>
  <li><b>key</b> (string) Read API Key for this specific Channel (optional--no key required for public channels)</li>
  <li><b>results</b> (integer) Number of entries to retrieve, 8000 max, default of 100 (optional)</li>
  <li><b>days</b> (integer) Number of 24-hour periods before now to include in feed (optional)</li>
  <li><b>start</b> (datetime) Start date in format YYYY-MM-DD%20HH:NN:SS (optional)</li>
  <li><b>end</b> (datetime) End date in format YYYY-MM-DD%20HH:NN:SS (optional)</li>
  <li><b>timezone</b> (string) <a href="/docs#timezones">Timezone identifier</a> for this request (optional)</li>
  <li><b>offset</b> (integer) Timezone offset that results should be displayed in. Please use the <a href="/docs#timezones">timezone</a> parameter for greater accuracy. (optional)</li>
  <li><b>status</b> (true/false) Include status updates in feed by setting "status=true" (optional)</li>
  <li><b>location</b> (true/false) Include latitude, longitude, and elevation in feed by setting "location=true" (optional)</li>
  <li><b>min</b> (decimal) Minimum value to include in response (optional)</li>
  <li><b>max</b> (decimal) Maximum value to include in response (optional)</li>
  <li><b>round</b> (integer) Round to this many decimal places (optional)</li>
  <li><b>timescale</b> (integer or string) Get first value in this many minutes, valid values: 10, 15, 20, 30, 60, 240, 720, 1440, "daily" (optional)</li>
  <li><b>sum</b> (integer or string) Get sum of this many minutes, valid values: 10, 15, 20, 30, 60, 240, 720, 1440, "daily" (optional)</li>
  <li><b>average</b> (integer or string) Get average of this many minutes, valid values: 10, 15, 20, 30, 60, 240, 720, 1440, "daily" (optional)</li>
  <li><b>median</b> (integer or string) Get median of this many minutes, valid values: 10, 15, 20, 30, 60, 240, 720, 1440, "daily" (optional)</li>
  <li><b>callback</b> (string) Function name to be used for JSONP cross-domain requests (optional)</li>
</ul>

<div class="alert alert-warning">
  Please note that the results parameter is not compatible with timescale, sum, average, or median.
</div>

<br>
Example GET:

<pre>GET <span class="str"><%= @ssl_api_domain %>channels/<span class="customcode">9</span>/fields/<span class="customcode">1</span><span class="format format-json">.json</span><span class="format format-xml">.xml</span>?results=<span class="customcode">2</span></span></pre>

<br>

<div class="format format-block-xxl format-text">
  The response will be an HTML page with the JSON Channel's field feed, for example:

<pre class="prettyprint">
{
  "channel":
  {
    "id": 9,
    "name": "my_house",
    "description": "Netduino Plus connected to sensors around the house",
    "latitude": "40.44",
    "longitude": "-79.996",
    "field1": "Light",
    "field2": "Outside Temperature",
    "created_at": "2010-12-13T20:20:06-05:00",
    "updated_at": "2014-02-26T12:43:04-05:00",
    "last_entry_id": 6060625
  },
  "feeds":
  [
    {
      "created_at": "2014-02-26T12:42:49-05:00",
      "entry_id": 6060624,
      "field1": "188"
    },
    {
      "created_at": "2014-02-26T12:43:04-05:00",
      "entry_id": 6060625,
      "field1": "164"
    }
  ]
}
</pre>
</div>

<div class="format format-block-xxl format-json">
  The response will be a JSON object of the Channel's field feed, for example:

<pre class="prettyprint">
{
  "channel":
  {
    "id": 9,
    "name": "my_house",
    "description": "Netduino Plus connected to sensors around the house",
    "latitude": "40.44",
    "longitude": "-79.996",
    "field1": "Light",
    "field2": "Outside Temperature",
    "created_at": "2010-12-13T20:20:06-05:00",
    "updated_at": "2014-02-26T12:43:04-05:00",
    "last_entry_id": 6060625
  },
  "feeds":
  [
    {
      "created_at": "2014-02-26T12:42:49-05:00",
      "entry_id": 6060624,
      "field1": "188"
    },
    {
      "created_at": "2014-02-26T12:43:04-05:00",
      "entry_id": 6060625,
      "field1": "164"
    }
  ]
}
</pre>

</div>

<div class="format format-block-xxl format-xml">
  The response will be an XML object of the Channel's field feed, for example:

<pre class="prettyprint">
&lt;?xml version="1.0" encoding="UTF-8"?>
&lt;channel>
  &lt;id type="integer">9&lt;/id>
  &lt;name>my_house&lt;/name>
  &lt;description>Netduino Plus connected to sensors around the house&lt;/description>
  &lt;latitude type="decimal">40.44&lt;/latitude>
  &lt;longitude type="decimal">-79.996&lt;/longitude>
  &lt;field1>Light&lt;/field1>
  &lt;field2>Outside Temperature&lt;/field2>
  &lt;created-at type="dateTime">2010-12-13T20:20:06-05:00&lt;/created-at>
  &lt;updated-at type="dateTime">2014-02-26T12:49:19-05:00&lt;/updated-at>
  &lt;last-entry-id type="integer">6060650&lt;/last-entry-id>
  &lt;feeds type="array">
    &lt;feed>
      &lt;created-at type="dateTime">2014-02-26T12:49:04-05:00&lt;/created-at>
      &lt;entry-id type="integer">6060649&lt;/entry-id>
      &lt;field1>160&lt;/field1>
      &lt;id type="integer" nil="true"/>
    &lt;/feed>
    &lt;feed>
      &lt;created-at type="dateTime">2014-02-26T12:49:19-05:00&lt;/created-at>
      &lt;entry-id type="integer">6060650&lt;/entry-id>
      &lt;field1>171&lt;/field1>
      &lt;id type="integer" nil="true"/>
    &lt;/feed>
  &lt;/feeds>
&lt;/channel>
</pre>

</div>

<br><br>

<div>
  <%= render 'response' %>
  <h2>Get Last Entry in a Field Feed</h2>
</div>

<br>
To get the last entry in a Channel's field feed, send an HTTP GET to <code><%= @ssl_api_domain %>channels/<span class="customcode">CHANNEL_ID</span>/fields/<span class="customcode">FIELD_ID</span>/last<span class="format format-json">.json</span><span class="format format-xml">.xml</span></code> ,
replacing <span class="customcode">CHANNEL_ID</span> with the ID of your Channel and <span class="customcode">FIELD_ID</span> with the ID of your field.

<br><br>
Valid parameters:
<ul class="format-block">
  <li><b>key</b> (string) Read API Key for this specific Channel (optional--no key required for public channels)</li>
  <li><b>timezone</b> (string) <a href="/docs#timezones">Timezone identifier</a> for this request (optional)</li>
  <li><b>offset</b> (integer) Timezone offset that results should be displayed in. Please use the <a href="/docs#timezones">timezone</a> parameter for greater accuracy. (optional)</li>
  <li><b>status</b> (true/false) Include status updates in feed by setting "status=true" (optional)</li>
  <li><b>location</b> (true/false) Include latitude, longitude, and elevation in feed by setting "location=true" (optional)</li>
  <li><b>callback</b> (string) Function name to be used for JSONP cross-domain requests (optional)</li>
  <li class="format format-text"><b>prepend</b> (string) Text to add before the API response (optional)</li>
  <li class="format format-text"><b>append</b> (string) Text to add after the API response (optional)</li>
</ul>

<br>
Example GET:

<pre>GET <span class="str"><%= @ssl_api_domain %>channels/<span class="customcode">9</span>/fields/<span class="customcode">1</span>/last<span class="format format-json">.json</span><span class="format format-xml">.xml</span></span></pre>

<br>

<div class="format format-block format-text">
  The response will be the Channel field's most recent value, for example:

<pre class="prettyprint">
176
</pre>
</div>

<div class="format format-block format-json">
  The response will be a JSON object of the most recent feed, for example:

<pre class="prettyprint">
{
  "created_at": "2014-02-26T21:27:21Z",
  "entry_id": 6061519,
  "field1": "176"
}
</pre>

</div>

<div class="format format-block format-xml">
  The response will be an XML object of the most recent feed, for example:

<pre class="prettyprint">
&lt;?xml version="1.0" encoding="UTF-8"?>
&lt;feed>
  &lt;created-at type="dateTime">2014-02-26T21:28:51Z&lt;/created-at>
  &lt;entry-id type="integer">6061525&lt;/entry-id>
  &lt;field1>200&lt;/field1>
  &lt;id type="integer" nil="true"/>
&lt;/feed>
</pre>

</div>