@leancodepl/api-binary-blob

Blob conversion utilities for ApiBinary with file handling support.

Installation

npm install @leancodepl/api-binary-blob
# or
yarn add @leancodepl/api-binary-blob

API

fromBlob(blob)

Converts Blob to ApiBinary asynchronously.

Parameters:

• blob: Blob - The Blob to convert to ApiBinary

Returns: Promise resolving to ApiBinary or undefined if blob is undefined

toBlob(apiBinary, contentType)

Converts ApiBinary to Blob with optional content type.

Parameters:

• apiBinary: ApiBinary - The ApiBinary to convert to Blob
• contentType?: string - Optional MIME type for the Blob

Returns: Blob instance or undefined if apiBinary is null/undefined

Usage Examples

File Upload

import { fromBlob, toBlob } from "@leancodepl/api-binary-blob"

const handleFileUpload = async (file: File) => {
  const binary = await fromBlob(file)

  await api.post("/upload", {
    fileName: file.name,
    content: binary,
  })
}

File Download

import { toBlob } from "@leancodepl/api-binary-blob"

const downloadFile = async (binary: ApiBinary, filename: string) => {
  const blob = toBlob(binary, "application/octet-stream")
  const url = URL.createObjectURL(blob)

  const link = document.createElement("a")
  link.href = url
  link.download = filename
  link.click()

  URL.revokeObjectURL(url)
}

Image Processing

import { fromBlob, toBlob } from "@leancodepl/api-binary-blob"

const processImage = async (imageFile: File) => {
  const binary = await fromBlob(imageFile)

  const processedBlob = toBlob(binary, "image/jpeg")
  const preview = URL.createObjectURL(processedBlob)

  const img = document.createElement("img")
  img.src = preview
  document.body.appendChild(img)
}