book-cli

A NodeJS cli application that completed missing informations of given Books CSV file.

Usage

• First of all, the libraries should be installed via npm or yarn.

    npm install

• To run the application, give the following command:

    npm run dev

• To build the application, run the following command:

    npm run build

CLI Library

In this project, the vorpal is used to build a cli interface for user interactions. The available commands are:

Command	Description
help	Provides help for a given command.
correct-csv	Reads a CSV file and fulfill missing data
exit	Exits application.

• The UI related constants can be found in src/constants/UTIL_CONSTANTS.js

CSV Parser

• In this project, a csv file is read by CSV module. In CSV file, the headers, stated in src/constants/FILE_CONSTANTS.js, are expected.

Images

• While traversing book rows, for each row the related image is fetched and saved to the images folder. This folder destination can be changed in src/constants/FILE_CONSTANTS.js.

Parsers

• The fetch book detailed information, the html pages are parsed. The details about parsed can be found src/util/ParserUtil.js.
• The new parsers can be added to the ParserUtil. For now there are 2 different website parsers.
• To parse html pages, the cheerio library is used.

Logs

• Created Logger class to manage all logging operations. The default log file is set in src/constants/FILE_CONSTANTS.js as ERROR_LOG_FILE variable.