site_logiciels/services/utils/FileUtils.ts

/**
 * Manipulation des images
 */
class FileUtils {

  /**
   * Returns a blob with the given data and the image filetype
   *
   * @param data
   * @param filetype
   */
  public static newBlob(data: string, filetype: string = 'image/jpeg'): Blob {
    return new Blob([data as BlobPart], {type: filetype});
  }

  /**
   * Transforme un Blob en Base64
   * @param {Blob} blob
   */
  public static async blobToBase64(blob: Blob): Promise<string> {
    return new Promise((resolve, _) => {
      const reader = new FileReader();
      // @ts-ignore
      reader.onloadend = () => {
        // @ts-ignore
        let base64Data: string = reader.result;
        base64Data = base64Data.substring(base64Data.indexOf(',') + 1);
        resolve(base64Data);
      };
      reader.readAsDataURL(blob);
    });
  }
}
export default FileUtils