file-listen-process

file-listen-process is a NodeJS library listen for files with a specific extension in a directory, rename and backup the file as it arrives.

Example:

File arrive: STOCK.csv

File renamed: STOCK-1549004279028-0.dat

File backup: _backup/STOCK-1549004279028-0.dat

Installation

Use the package manager npm to install file-listen-process.

npm i file-listen-process

Usage

const flp = require('file-listen-process');

const listener = new flp.Listener({
    directory: './dump',
    interval: 5000,
    fileext: '.csv',
    typematch: /[^\_]*/,
    renametemplate: '[TYPE]-[TIMESTAMP]-[COUNTER].dat'
});

listener.listen((err) => {
    console.log(err.message);
});

listener.on('loaded', (files) => {
    console.log(files);
});

listener.on('log', (event) => {
    console.log(event);
});

Listener Options

[option (environment variable)]

directory (FILELOADER_DIRECTORY)

interval (FILELOADER_INTERVAL) *** timer interval in seconds

fileext (FILELOADER_EXT) *** like .csv

typematch (FILELOADER_TYPEMATCH) *** regex match

mustrename (FILELOADER_MUSTRENAME) *** true/false to rename file

renametemplate (FILELOADER_RENAMETEMPLATE) *** [TYPE],[TIMESTAMP],[COUNTER]

mustbackup (FILELOADER_MUSTBACKUP) *** true/false to backup file

backupdirectory (FILELOADER_BACKUPDIRECTORY) *** directory for file backup

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT