Bun Spreadsheets

Easily generate spreadsheets, like CSVs and Excel files.

☘️ Features

Generate CSV files
Generate Excel files
Store spreadsheets to disk
Download spreadsheets as a Response object
Simple API for creating and manipulating spreadsheets
Fully typed
Optimized for Bun
Lightweight & dependency-free

🤖 Usage

bun install bun-spreadsheets

Now, you can use it in your project:

import { createSpreadsheet, spreadsheet } from 'bun-spreadsheets'

// Create a spreadsheet
const data = {
  headings: ['Name', 'Age', 'City'],
  data: [
    ['John Doe', 30, 'Los Angeles'],
    ['Jana Schmidt', 25, 'Berlin'],
    ['Bob Johnson', 35, 'London']
  ]
}

// Generate and manipulate spreadsheets

// 1. Using createSpreadsheet function
const spreadsheet = createSpreadsheet(data) // defaults to csv
const csvSpreadsheet = createSpreadsheet(data, { type: 'csv' })
const excelSpreadsheet = createSpreadsheet(data, { type: 'excel' })

// Store the spreadsheet to disk
await spreadsheet.store('output.csv')

// Create a download response
const response1 = excelSpreadsheet.download('data.xlsx') // downloads and stores as data.xlsx on your filesystem

// 2. Using spreadsheet object directly, and chain if desired
const csvContent = spreadsheet(data).generateCSV().store('output2.csv')
const csvContent2 = spreadsheet(data).csv().store('output3.csv') // same as above

const excelContent = spreadsheet(data).generateExcel()
await excelContent.store('output3.xlsx')
const response2 = await excelContent.download('output3.xlsx') // downloads and stores as output3.xlsx

// 3. Accessing raw content
const rawCsvContent = spreadsheet(data).csv().getContent()
const rawCsvContent2 = spreadsheet(data).generateCSV().getContent()
const rawExcelContent = spreadsheet(data).excel().getContent()
const rawExcelContent2 = spreadsheet(data).generateExcel().getContent()

console.log('CSV Content:', rawCsvContent)
console.log('Excel Content:', rawExcelContent)

📚 API Documentation

Main Functions

spreadsheet(data: Content)

Creates a spreadsheet object with various methods.

data: An object containing headings and data for the spreadsheet.

Returns an object with the following methods:

csv(): Generates a CSV SpreadsheetWrapper
excel(): Generates an Excel SpreadsheetWrapper
store(path: string): Stores the spreadsheet to a file
generateCSV(): Generates a CSV SpreadsheetWrapper
generateExcel(): Generates an Excel SpreadsheetWrapper

Example:

const csvWrapper = await spreadsheet(data).csv() // equivalent to spreadsheet(data).generateCSV()

createSpreadsheet(data: Content, options?: SpreadsheetOptions)

Creates a SpreadsheetWrapper with the given data and options.

data: An object containing headings and data for the spreadsheet.
options: Optional. An object specifying the spreadsheet type ('csv' or 'excel').

Returns a SpreadsheetWrapper.

Example:

const spreadsheet = createSpreadsheet(data, { type: 'csv' })

SpreadsheetWrapper Methods

getContent()

Returns the content of the spreadsheet as a string or Uint8Array.

download(filename: string)

Creates a download Response for the spreadsheet.

filename: The name of the file to be downloaded.

Returns a Response object.

store(path: string)

Stores the spreadsheet to a file.

path: The file path where the spreadsheet will be stored.

Returns a Promise that resolves when the file is written.

Utility Functions

spreadsheet.create(data: Content, options?: SpreadsheetOptions)

Creates a SpreadsheetContent object.

data: An object containing headings and data for the spreadsheet.
options: Optional. An object specifying the spreadsheet type ('csv' or 'excel').

Returns a SpreadsheetContent object.

spreadsheet.generate(data: Content, options?: SpreadsheetOptions)

Generates spreadsheet content based on the given data and options.

data: An object containing headings and data for the spreadsheet.
options: Optional. An object specifying the spreadsheet type ('csv' or 'excel').

Returns a string or Uint8Array representing the spreadsheet content.

spreadsheet.generateCSV(content: Content)

Generates a CSV SpreadsheetWrapper.

content: An object containing headings and data for the spreadsheet.

Returns a SpreadsheetWrapper for CSV, which can be used to chain other methods like store() or download().

Example:

await spreadsheet(data).generateCSV().store('output.csv')

// if one can rely on the file extension to determine the type, you may do this:
await spreadsheet(data).store('output.csv')

spreadsheet.generateExcel(content: Content)

Generates an Excel SpreadsheetWrapper.

content: An object containing headings and data for the spreadsheet.

Returns a SpreadsheetWrapper for Excel, which can be used to chain other methods like store() or download().

Example:

await spreadsheet(data).store('output.xlsx')
// or
await spreadsheet(data).generateExcel().store('output.xlsx')

To view the full documentation, please visit https://stacksjs.org/docs/bun-spreadsheets.

🧪 Testing

bun test

📈 Changelog

Please see our releases page for more information on what has changed recently.

🚜 Contributing

Please review the Contributing Guide for details.

🏝 Community

For help, discussion about best practices, or any other conversation that would benefit from being searchable:

Discussions on GitHub

For casual chit-chat with others using this package:

Join the Stacks Discord Server

🙏🏼 Credits

Many thanks to the following core technologies & people who have contributed to this package:

📄 License

The MIT License (MIT). Please see LICENSE for more information.

Made with 💙