Ubidots JavaScript API Client

The Ubidots JavaScript API Client makes calls to the Ubidots Api.

Installation

Add jQuery and the ubidots.js file to your proyect:

<script src="//code.jquery.com/jquery.min.js"></script>
<script src="ubidots.js"></script>

Connecting to the API

Before playing with the API you should connect to it using your private API key, which can be found in your profile.

If you don't have an account yet, you can create one here.

Once you have your API key, you can connect to the API by creating an ApiClient instance. Let's assume your API key is: "7fj39fk3044045k89fbh34rsd9823jkfs8323". Then your code would look like this:

var api = new Ubidots.ApiClient( '7fj39fk3044045k89fbh34rsd9823jkfs8323' );

Now you have an instance of ApiClient ("api") which can be used to connect to the Ubidots API.

Saving a New Value to a Variable

Retrieve the variable you'd like the value to be saved to:

var myVariable;
api.getVariable( '56799cf1231b28459f976417', function( variable ) { myVariable = variable; } );

Given the instantiated variable, you can save a new value with the following line:

var newValue;
myVariable.saveValue( { value : 10 }, function( value ) { newValue = value; } );

You can also specify a timestamp (optional):

var newValue;
myVariable.saveValue( { value : 10, timestamp : 1376061804407 }, function( value ) { newValue = value; } );

If no timestamp is specified, the API server will assign the current time to it. We think it's always better for you to specify the timestamp so the record reflects the exact time the value was captured, not the time it arrived to our servers.

Creating a Data Source

As you might know by now, a data source represents a device that's generating time-series data.

This line creates a new data source:

var newDatasource;
api.createDatasource( { name : 'myNewDs', tags : [ 'firstDs', 'new' ], description : 'any des' }, function( datasource ) { newDatasource = datasource; } );

The name key is required, but the tags and description keys are optional. This new data source can be used to track different variables, so let's create one.

Creating a Variable

A variable is a time-series containing different values over time. Let's create one:

var newVariable;
newDatasource.createVariable( { name : 'myNewVar', unit : 'Nw' }, function( variable ) { newVariable = variable; } );

The name and unit keys are required.

Getting Values

To get the values of a variable, use the method getValues in an instance of the class Variable. This will return a values array.

If you only want the last N values call the method with the number of elements you want.

var allValues;
myVariable.getValues( function( values ) { allValues = values; } );

Getting a Group of Data Sources

If you want to get all your data sources you can call the getDatasources method on the ApiClient instance directly. This method return a objects Datasource array.

var allDatasources;
api.getDatasources( function( datasources ) { allDatasources = datasources; } );

Getting a Specific Data source

Each data source is identified by an ID. A specific data source can be retrieved from the server using this ID.

For example, if a data source has the id 51c99cfdf91b28459f976414, it can be retrieved as follows:

var mySpecificDatasource;
api.getDatasource( '51c99cfdf91b28459f976414', function( datasource ) { mySpecificDatasource = datasource; } );

Getting a Group of Variables From a Data source

You can also retrieve some or all of the variables of a data source:

var allVariablesOfDatasource;
myDatasource.getVariables( function( variables ) { allVariablesOfDatasource = variables; } );

Getting a Specific Variable

As with data sources, you can use your variable's ID to retrieve the details about it:

var mySpecificVariable;
api.getVariable( '56799cf1231b28459f976417', function( variable ) { mySpecificVariable = variable; } );