# require-dir-watch [![Support me on Patreon][badge_patreon]][patreon] [![Buy me a book][badge_amazon]][amazon] [![PayPal][badge_paypal_donate]][paypal-donations] [](https://github.com/IonicaBizau/ama) [](https://www.npmjs.com/package/require-dir-watch) [](https://www.npmjs.com/package/require-dir-watch) [](https://www.codementor.io/@johnnyb?utm_source=github&utm_medium=button&utm_term=johnnyb&utm_campaign=github) > Reimport the files from a directory when they are being updated. ## :cloud: Installation ```sh # Using npm npm install --save require-dir-watch # Using yarn yarn add require-dir-watch ``` ## :clipboard: Example ```js const path = require("path"); const requireDirWatch = require("require-dir-watch"); // Define the directory to watch const functionsDir = path.join(__dirname, "functions"); // Load and watch the functions directory const functions = requireDirWatch(functionsDir, { onError: err => console.error("[ERROR]", err), onCreate: (name, module) => console.log(`[CREATE] Module '${name}' loaded:`, module), onUpdate: (name, module) => console.log(`[UPDATE] Module '${name}' reloaded:`, module), onDelete: name => console.log(`[DELETE] Module '${name}' removed.`) }); // Periodically invoke a function if it exists and log the function map setInterval(() => { if (typeof functions.sum === "function") { console.log("sum(35, 7) =", functions.sum(35, 7)); } else { console.log("Function 'sum' is not available."); } console.log("Current modules:", functions); }, 1000); ``` ## :memo: Documentation ### `requireDirWatch(directoryPath, [options], [options.onError], [options.onCreate], [options.onUpdate], [options.onDelete])` Reimport the files from a directory when they are being updated. #### Params - **String** `directoryPath`: The directory to watch. - **Object** `[options]`: Configuration options. - **Function** `[options.onError]`: A callback function to handle errors. - **Function** `[options.onCreate]`: A callback function when a file is created. - **Function** `[options.onUpdate]`: A callback function when a file is updated. - **Function** `[options.onDelete]`: A callback function when a file is deleted. #### Return - **Object** An object with file base names as keys and their exports as values. ## :question: Get Help There are few ways to get help: 1. Please [post questions on Stack Overflow](https://stackoverflow.com/questions/ask). You can open issues with questions, as long you add a link to your Stack Overflow question. 2. For bug reports and feature requests, open issues. :bug: 3. For direct and quick help, you can [use Codementor](https://www.codementor.io/johnnyb). :rocket: ## :yum: How to contribute Have an idea? Found a bug? See [how to contribute][contributing]. ## :sparkling_heart: Support my projects I open-source almost everything I can, and I try to reply to everyone needing help using these projects. Obviously, this takes time. You can integrate and use these projects in your applications *for free*! You can even change the source code and redistribute (even resell it). However, if you get some profit from this or just want to encourage me to continue creating stuff, there are few ways you can do it: - Starring and sharing the projects you like :rocket: - [![Buy me a book][badge_amazon]][amazon]—I love books! I will remember you after years if you buy me one. :grin: :book: - [![PayPal][badge_paypal]][paypal-donations]—You can make one-time donations via PayPal. I'll probably buy a ~~coffee~~ tea. :tea: - [![Support me on Patreon][badge_patreon]][patreon]—Set up a recurring monthly donation and you will get interesting news about what I'm doing (things that I don't share with everyone). - **Bitcoin**—You can send me bitcoins at this address (or scanning the code below): `1P9BRsmazNQcuyTxEqveUsnf5CERdq35V6`  Thanks! :heart: ## :scroll: License [MIT][license] © [Ionică Bizău][website] [license]: /LICENSE [website]: https://ionicabizau.net [contributing]: /CONTRIBUTING.md [docs]: /DOCUMENTATION.md [badge_patreon]: https://ionicabizau.github.io/badges/patreon.svg [badge_amazon]: https://ionicabizau.github.io/badges/amazon.svg [badge_paypal]: https://ionicabizau.github.io/badges/paypal.svg [badge_paypal_donate]: https://ionicabizau.github.io/badges/paypal_donate.svg [patreon]: https://www.patreon.com/ionicabizau [amazon]: http://amzn.eu/hRo9sIZ [paypal-donations]: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=RVXDDLKKLQRJW