csv-parser

Vizzu CSV parser plugin

This plugin enables you to parse CSV files and transform them into Vizzu compatible data. It's designed with features like:

• Automatic delimiter recognition
• Header availability check
• Flexible input parameters

Install

$ npm install @vizzu/csv-parser

Usage

To use the plugin, simply add it to your Vizzu instance as a feature:

import { CSVParser } from '@vizzu/csv-parser'

chart.feature(new CSVParser(), true)

You can pass your data in one of two ways.
Via plain text:

chart.animate({
	data: {
		csv: {
			content: contentText,
			options: {
				encoding: 'utf8'
			}
		}
	}
})

Via URL:

chart.animate({
	data: {
		csv: {
			url: 'https://yourdomain.com/data.csv',
			options: {
				encoding: 'utf8'
			}
		}
	}
})

The plugin accepts two input parameters as a data source:

Name	Type	Description
content	String	Plain CSV text
url	String	Reference to the CSV file

Additionally, it accepts an 'options' parameter with various properties to customize the behavior of the parser:

Name	Type	Default value	Description
encoding	String	utf-8	The character encoding of the file.
delimiter	String	,	The delimiter used in the CSV file
hasHeader	Boolean	false	A boolean value specifying whether the file contains a header.
headers	Array	[]	An array of strings providing headers if they are not present in the CSV file.
autoheader	Boolean	True	A boolean value indicating whether to generate headers automatically if they are missing.
emptyColumnPrefix	String	Column	A string defining the prefix for any empty columns.

All parameters are optional, with default values applied if not provided.

Extracting information

You can easily extract specific details from the csv by requesting a parameter in the following way.

chart.feature.csvParser.hasHeader
chart.feature.csvParser.delimiter
chart.feature.csvParser.data

Three pieces of data can be extracted: the separator (that was specified or automatically recognized), whether the file contains a header or not, and the parsed data structured for Vizzu.

License

Copyright © 2021-2023 Vizzu Inc.

Released under the Apache 2.0 License.