Function readBase64WithFetch

packages/plugins/image/src/utils.ts:19–36

(url: string)

}

const readBase64WithFetch = (url: string) => {
  return new Promise<string>((resolve, reject) => {
    const xhr = new XMLHttpRequest()
    xhr.onload = () => {
      const reader = new FileReader()
      reader.onloadend = () => {
        resolve(reader.result as string)
      }
      reader.onerror = error => {
        reject(error)
      }
      reader.readAsDataURL(xhr.response)
    }
    xhr.open('GET', url)
    xhr.responseType = 'blob'
    xhr.send()
  })
}

export const readBase64 = (file: File | string) => {
  return typeof file === 'string' ? readBase64WithFetch(file) : readBase64WithFileReader(file)