epub2

epub2 is a node.js module to parse EPUB electronic book files.

NB! Only ebooks in UTF-8 are currently supported!.

this module fork from epub

Installation

npm install epub2 zipfile

Or, if you want a pure-JS version (useful if used in a Node-Webkit app for example):

npm install epub2

Usage

• example
• example Promise

const EPub = require("epub2/node");
import * as EPub from 'epub2/node';

const EPub = require("epub2").EPub;
import EPub from 'epub2';
import { EPub } from 'epub2';

var epub = new EPub(epubfile, imagewebroot, chapterwebroot);

Where

• epubfile is the file path to an EPUB file
• imagewebroot is the prefix for image URL's. If it's /images/ then the actual URL (inside chapter HTML <img> blocks) is going to be /images/IMG_ID/IMG_FILENAME, IMG_ID can be used to fetch the image form the ebook with getImage. Default: /images/
• chapterwebroot is the prefix for chapter URL's. If it's /chapter/ then the actual URL (inside chapter HTML <a> links) is going to be /chapters/CHAPTER_ID/CHAPTER_FILENAME, CHAPTER_ID can be used to fetch the image form the ebook with getChapter. Default: /links/

Before the contents of the ebook can be read, it must be opened (EPub is an EventEmitter).

async

let epub = await EPub.createAsync(epubfile, imagewebroot, chapterwebroot);

EPub.createAsync(epubfile, imagewebroot, chapterwebroot)
    .then(function (epub)
    {
        ...
    })
    .catch(function (err)
    {
        console.log("ERROR\n-----");
        throw err;
    })
;

old way

    epub.on("end", function(){
        // epub is now usable
        console.log(epub.metadata.title);

        epub.getChapter("chapter_id", function(err, text){});
    });
    epub.parse();

metadata

Property of the epub object that holds several metadata fields about the book.

    epub = new EPub(...);
    ...
    epub.metadata;

    // raw metadata
    epub.metadata[EPub.SYMBOL_RAW_DATA];

Available fields:

• creator Author of the book (if multiple authors, then the first on the list) (Lewis Carroll)
• creatorFileAs Author name on file (Carroll, Lewis)
• title Title of the book (Alice's Adventures in Wonderland)
• language Language code (en or en-us etc.)
• subject Topic of the book (Fantasy)
• date creation of the file (2006-08-12)
• description

flow

flow is a property of the epub object and holds the actual list of chapters (TOC is just an indication and can link to a # url inside a chapter file)

    epub = new EPub(...);
    ...
    epub.flow.forEach(function(chapter){
        console.log(chapter.id);
    });

Chapter id is needed to load the chapters getChapter

toc

toc is a property of the epub object and indicates a list of titles/urls for the TOC. Actual chapter and it's ID needs to be detected with the href property

getChapter(chapter_id, callback)

Load chapter text from the ebook.

    var epub = new EPub(...);
    ...
    epub.getChapter("chapter1", function(error, text){});

getChapterRaw(chapter_id, callback)

Load raw chapter text from the ebook.

getImage(image_id, callback)

Load image (as a Buffer value) from the ebook.

    var epub = new EPub(...);
    ...
    epub.getImage("image1", function(error, img, mimeType){});

getFile(file_id, callback)

Load any file (as a Buffer value) from the ebook.

    var epub = new EPub(...);
    ...
    epub.getFile("css1", function(error, data, mimeType){});

EPub.libPromise

change Promise class

EPub.libPromise = Promise;