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zoomdata-client

3.7.15-152 • Public • Published

Zoomdata Javascript SDK

API Keys

The Zoomdata Javascript SDK requires an API key to connect to a Zoomdata Server. Generate a new API key by sending an HTTP GET request to the Zoomdata Server.

Note: Make sure to replace your User Name, Password, the URL for your Zoomdata Server and the Data Source Name you want to use.

curl -XGET --user USER_NAME:PASSWORD 'https://localhost:8443/zoomdata/service/sources/key?source=DATA_SOURCE_NAME' --insecure

Install the library

npm install zoomdata-client

zoomdat-client comes built as an UMD. You are able to use it both in a browser:

<script src="node_modules/zoomdata-client/distribute/zoomdata-client.js" type="text/javascript"></script>

or as a commonJS module:

var ZoomdataSDK = require('zoomdata-client');

Create a Client

When instantiating a Zoomdata JS client, you need to supply connection properties as well as an authentication key. The .createClient function returns a Javascript Promise that resolves to the client.

var credentials = {
    key: API_KEY
};
 
var application = {
    secure: false,
    host: 'localhost',
    port: 8080,
    path: '/zoomdata'
};
 
ZoomdataSDK.createClient({
    credentials: credentials,
    application: application
}).then(function (client) {
    console.log('Validated:', client);
})

Create a Query

When creating a Query, you need to supply a Data Source name as well as a query configuration.

The .createQuery function returns a Javascript Promise that resolves to the validated Query.

client.createQuery({name: 'Real Time Sales'}, {
    filters: [],
    groupBy: [{
        name: 'userincome',
        limit: 10
    }],
    metrics: []
});

Query Configuration Details

A Query can be Grouped or Ungrouped.

An Ungrouped Query only requires an array of fields. This configuration will return all records with just the userincome and usergender fields.

{
    fields: ['userincome, usergender']
}

A Grouped Query requires an array of Groupings. Optionally, you can include an array of Metrics. This configuration will group by the userincome field and calculate the average of the usersentiment field.

{
    groups: [{
        name: 'userincome',
        limit: 10
    }],
    metrics: [{
        name: 'usersentiment',
        func: 'avg'
    }]
}

All Queries can include an optional array of filters. This configuration will filter only results with a usersentiment between -0.5 and 0.5.

{
    filters: [{
        path: 'usersentiment',
        operation: 'BETWEEN',
        value: [-0.5, 0.5]
    }]
}

Run a Query

When running a Query, you must provide a callback that receives new data as it arrives from the Zoomdata Server.

client.runQuery(query, function(data) {
    console.log(data);
});

Embed a Chart

When embedding a Chart, you must provide an HTML element to embed the chart into, a query to run for the chart, the name of the visualization, and an object for overriding Chart Variables.

Note: You can find variable names and values in your Zoomdata Server's Source Configuration Page.

var variables = {
    'Size': 'count'
};
 
client.visualize({
    element: document.body,
    query: query,
    visualization: 'Donut',
    variables: variables
});

Example

var credentials = {
    key: API_KEY
};
 
var application = {
    secure: false,
    host: 'localhost',
    port: 8080,
    path: '/zoomdata'
};
 
var variables = {
    'Size': [{'name': 'count'}]
};
 
ZoomdataSDK.createClient({
    credentials: credentials,
    application: application
}).then(function (client) {
    client.createQuery({name: 'Real Time Sales'}, {
        filters: [],
        groupBy: [{
            name: 'userincome',
            limit: 10
        }],
        metrics: []
    }).then(function(query) {
        client.runQuery(query, function(data) {
            console.log(data);
        });
 
        client.visualize({
            element: document.body,
            query: query,
            visualization: 'Donut',
            variables: variables
        }).catch(onError);
    }).catch(onError);
}).catch(onError);
 
function onError(reason) {
    console.error(reason.stack || reason.statusText || reason);
}

Usage with TypeScript

The Zoomdata JavaScript SDK exposes several interfaces and types defined in TypeScript.

Example

// import createClient declaration and value
import { createClient } from 'zoomdata-client';
// now calls to createClient are type checked:
const client = await createClient(
    {
        application: {host: 'localhost'},
        credentials: {key: 'random_key'},
    },
);
const query = client.createAggregatedQuery('some_source_id');
// Other imports of declarations and values are available:
import { AggregateFilter } from 'zoomdata-client';
import { ZoomdataTime } from 'zoomdata-client';
import { Formatting } from 'zoomdata-client';
// create meta data request based on query input
import { MetaDataRequest } from 'zoomdata-client';
const metaDataRequest = new MetaDataRequest(query);
metaDataRequest.getRequest();

All types and interfaces are defined in the zoomdata.d.ts file.

install

npm i zoomdata-client

Downloadsweekly downloads

160

version

3.7.15-152

license

ISC

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