1. API reference
  2. Welcome
    1. Component overview
    2. Quickstart
    3. System requirements
    4. Troubleshooting
    5. Managing license keys
  3. Connecting to Data Source
    1. JSON
      1. Connecting to JSON
      2. Data types in JSON
    2. CSV
      1. Connecting to CSV
      2. Connecting to CSV using Compressor
      3. Data types in CSV
    3. Database
      1. Connecting to SQL databases
      2. Connecting to other databases
      3. Connecting to database with Node.js
      4. Connecting to database with .NET
      5. Connecting to database with .NET Core
      6. Connecting to database with Java
      7. Connecting to database with PHP
    4. Microsoft Analysis Services
      1. Connecting to Microsoft Analysis Services
      2. Getting started with Accelerator
      3. Installing Accelerator as a Windows Service
      4. Referring Accelerator as a DLL
      5. Configuring authentication process
      6. Configuring secure HTTPS connection
      7. Troubleshooting
    5. Pentaho Mondrian
      1. Connecting to Pentaho Mondrian
      2. Getting started with Accelerator
      3. Configuring Mondrian roles
      4. Сonfiguring username/password protection
      5. Сonfiguring secure HTTPS connection
      6. Troubleshooting
    6. icCube
  4. Configuring report
    1. What is a report
    2. Data source
    3. Slice
    4. Options
    5. Number formatting
    6. Conditional formatting
    7. Set report to the component
    8. Get report from the component
    9. Date and time formatting
    10. Configuring global options
    11. Export and print
    12. Calculated values
    13. Custom sorting
  5. Integration with frameworks
    1. Available tutorials
    2. Integration with AngularJS (v1.x)
    3. Integration with Angular
    4. Integration with React
    5. Integration with Webpack
    6. Integration with ASP.NET
    7. Integration with jQuery
    8. Integration with JSP
    9. Integration with TypeScript
    10. Integration with RequireJS
    11. Integration with PhoneGap
  6. Integration with charts
    1. Integration with Highcharts
    2. Integration with Google Charts
    3. Integration with FusionCharts
    4. Integration with any charting library
  7. Customizing
    1. Customizing toolbar
    2. Customizing appearance
    3. Customizing context menu
    4. Localizing component
  8. Updating to the latest version
    1. Updating to the latest version
    2. Release notes
    3. Migration guide from 2.5 to 2.6
    4. Migration guide from 2.4 to 2.5
    5. Migration guide from 2.3 to 2.4
    6. Migration guide from 2.2 to 2.3
  9. Older Versions
    1. Documentation 2.3
    2. Documentation 2.2
    3. API reference - Flex
Table of contents

Connecting to database with Node.js

Requirements

  • Flexmonster Pivot Component version 2.6.0 or higher
  • Node.js version 8.x
  • Driver for the database

Supported databases

  • MongoDB – driver
  • MySQL – driver
  • PostgreSQL – driver
  • JSON files/streams
  • CSV files/streams

Step 1: Embed the component into your web page

You already have an empty component in your HTML page. If Flexmonster Component is not embedded – return to Quickstart. Your code should look like the following example:

<div id="pivotContainer">The component will appear here</div>
<script src="flexmonster/flexmonster.js"></script>
<script>
	var pivot = new Flexmonster({
		container: "pivotContainer",
		toolbar: true,
		licenseKey: "XXXX-XXXX-XXXX-XXXX-XXXX"
	});
</script>

Step 2: Setup Data Compressor on the server

First of all, you need to add the following dependencies to your project:

  • Appropriate database driver
  • Install flexmonster-compressor dependency using NPM:
    npm install flexmonster-compressor
    

Below is the connection and query sample for MongoDB:

const MongoClient = require('mongodb').MongoClient;
MongoClient.connect("mongodb://demo:p123456@ds121251.mlab.com:21251/flexmonster", 
    { useNewUrlParser: true }, (err, client) => {
    if (err) throw err;
    console.log("Connected successfully to MongoDB.");
    app.set("db", client.db("flexmonster"));
});
app.get('/data', (req, res) => {
    const db = req.app.get('db');
    const result = db.collection('sample_data').find({}, 
        { projection: { '_id': false } }).stream();
});

The following line of code will convert result to the compressed stream:

const compressor = require('flexmonster-compressor');
let stream = compressor.compressJsonStream(result);

Now, you can create a streaming response:

stream.on('data', data => {
	res.write(data);
});
stream.on('end', () => {
	res.end();
});

The full project is available at GitHub or at Pivot Table for Databases/server/nodejs/ inside download package.

Step 3: Enable cross-origin resource sharing (CORS).

By default, browser prevents JavaScript from making requests across domain boundaries. CORS allows web applications to make cross-domain requests. Here are some useful links explaining how to setup CORS on your server:

Step 4: Configure report with your own data

Now it’s time to configure Flexmonster Pivot Component on the web page. Let’s create a minimal report for this (replace filename and other parameters with your specific values):

var pivot = new Flexmonster({
	container: "pivotContainer",
	toolbar: true,
	report: {
		dataSource: {
			dataSourceType: "ocsv",
			/* URL to the Data Compressor Node.js */
			filename: "http://localhost:3000/data"
		}
	},
	licenseKey: "XXXX-XXXX-XXXX-XXXX-XXXX"
});

Launch the web page from browser — here you go! A pivot table is embedded into your project.

Examples

Compress JSON file

app.get('/json', (req, res) => {
    let stream = compressor.compressJsonFile('./data.json');
    stream.on('data', data => res.write(data));
    stream.on('end', () => res.end());
})

Compress JSON array

app.get('/json', (req, res) => {
    let stream = compressor.compressJson([{
        "Category": "Accessories",
        "Size": "262 oz",
        "Color": "red",
        "Destination": "Australia",
        "Business Type": "Specialty Bike Shop",
        "Country": "Australia",
        "Price": 174,
        "Quantity": 225,
        "Discount": 23
    }, {
        "Category": "Bikes",
        "Size": "214 oz",
        "Color": "yellow",
        "Destination": "Canada",
        "Business Type": "Specialty Bike Shop",
        "Country": "Canada",
        "Price": 502,
        "Quantity": 90,
        "Discount": 17
    }, {
        "Category": "Components",
        "Size": "235 oz",
        "Color": "green",
        "Destination": "Australia",
        "Business Type": "Warehouse",
        "Country": "Australia",
        "Price": 551,
        "Quantity": 1950,
        "Discount": 51
    }, {
        "Category": "Cars",
        "Size": "307 oz",
        "Color": "white",
        "Destination": "United Kingdom",
        "Business Type": "Warehouse",
        "Country": "Canada",
        "Price": 842,
        "Quantity": 8212,
        "Discount": 55
    }]);
    stream.on('data', data => res.write(data));
    stream.on('end', () => res.end());
})

What’s next?