node-chart-exec

node-chart-exec is a configurable executable command program that generates charts in Node.js. It uses dependencies Chart.js, chartjs-node-canvas, fs-extra, and yargs. It uses npx command to generate charts. The program is written in JavaScript by gayanvoice.

Synopsis

npx node-chart-exec@[@version] --type --options --height --width --labels --dataset --outputfile

Description

Option	Description	Type	Example	Required
--type	Chart type supported by Chart.js. Types line, bar	String	--type='line'	true
--options	Choose true for enable options or false for disable options. If you enter true it will remove all the values from the chart.	String	--options='true'	true
--height	Height of the canvas.	Integer	--height=400	true
--width	Width of the canvas.	Integer	--width=400	true
--labels	Labels of the chart.	JSON	--labels='["Label 1", "Label 2", "Label 3", "Label 4", "Label 5", "Label 6"]'	true
--dataset	Dataset of the chart.	JSON	--dataset='[{"label":"Label of Chart", "data":[10, 20, 30, 40, 50, 40], "backgroundColor":"#7ACFFF", "borderColor":"#00A3FF"}}]'	true
--outputfile	Output file in PNG file type.	String	--outputfile='directory/file.png'	true

Output

1. Line chart --type='line'

With options --options=true

Command Line

npx node-chart-exec@2.0.0 --type='line' --options='true' --height=400 --width=400 --labels='["Label 1", "Label 2", "Label 3", "Label 4", "Label 5", "Label 6"]' --dataset='[{"label":"Label of Chart", "data":[10, 20, 30, 40, 50, 40], "backgroundColor":"#7ACFFF", "borderColor":"#00A3FF"}]' --outputfile='output/line-chart-with-options.png'

# Output
Node Chart Exec Started
All inputs are validated
Canvas width=400 height=400
Chart type='line' options='true' labels=["Label 1","Label 2","Label 3","Label 4","Label 5","Label 6"] output-file='output/line-chart-with-options.png'
Dataset [1/1] label='Label of Chart' data=[10,20,30,40,50,40] background-color='#7ACFFF' border-color='#00A3FF'
Image file created at 'output/line-chart-with-options.png'
Node Chart Exec Completed

Without options --options=false

Command Line

npx node-chart-exec@2.0.0 --type='line' --options='false' --height=400 --width=400 --labels='["Label 1", "Label 2", "Label 3", "Label 4", "Label 5", "Label 6"]' --dataset='[{"label":"Label of Chart", "data":[10, 20, 30, 40, 50, 40], "backgroundColor":"#7ACFFF", "borderColor":"#00A3FF"}]' --outputfile='output/line-chart-with-no-options.png'

# Output
Node Chart Exec Started
All inputs are validated
Canvas width=400 height=400
Chart type='line' options='false' labels=["Label 1","Label 2","Label 3","Label 4","Label 5","Label 6"] output-file='output/line-chart-with-options.png'
Dataset [1/1] label='Label of Chart' data=[10,20,30,40,50,40] background-color='#7ACFFF' border-color='#00A3FF'
Image file created at 'output/line-chart-without-options.png'
Node Chart Exec Completed

Output

output/lines-chart-with-options.png	output/lines-chart-without-options.png

2. Bar chart --type='bar'

With options --options=true

Command Line

npx node-chart-exec@2.0.0 --type='bar' --options='true' --height=400 --width=400 --labels='["Label 1", "Label 2", "Label 3", "Label 4", "Label 5", "Label 6"]' --dataset='[{"label":"Label of Chart", "data":[10, 20, 30, 40, 50, 40], "backgroundColor":"#7ACFFF", "borderColor":"#00A3FF"}]' --outputfile='output/bar-chart-with-options.png'

# Output
Node Chart Exec Started
All inputs are validated
Canvas width=400 height=400
Chart type='bar' options='true' labels=["Label 1","Label 2","Label 3","Label 4","Label 5","Label 6"] output-file='output/bar-chart-with-options.png'
Dataset [1/1] label='Label of Chart' data=[10,20,30,40,50,40] background-color='#7ACFFF' border-color='#00A3FF'
Image file created at 'output/bar-chart-with-options.png'
Node Chart Exec Completed

Without options --options=false

Command Line

npx node-chart-exec@2.0.0 --type='bar' --options='false' --height=400 --width=400 --labels='["Label 1", "Label 2", "Label 3", "Label 4", "Label 5", "Label 6"]' --dataset='[{"label":"Label of Chart", "data":[10, 20, 30, 40, 50, 40], "backgroundColor":"#7ACFFF", "borderColor":"#00A3FF"}]' --outputfile='output/bar-chart-without-options.png'

# Output
Node Chart Exec Started
All inputs are validated
Canvas width=400 height=400
Chart type='bar' options='false' labels=["Label 1","Label 2","Label 3","Label 4","Label 5","Label 6"] output-file='output/bar-chart-without-options.png'
Dataset [1/1] label='Label of Chart' data=[10,20,30,40,50,40] background-color='#7ACFFF' border-color='#00A3FF'
Image file created at 'output/bar-chart-without-options.png'

Output

output/bar-chart-with-options.png	output/bar-chart-without-options.png

Author

Written by Gayan Kuruppu.

📄 License

• Repository: gayanvoice/node-chart-exec
• NPM: node-chart-exec
• Code: MIT © Gayan Kuruppu