An Introduction to mkdirp

mkdirp is a popular Node.js module used to create recursive directory structures in a more efficient manner. This is particularly useful when you need to ensure the complete directory path exists, creating any missing directories along the way. In this guide, we will explore the various features and APIs provided by mkdirp, along with examples of how to use them.

Installation

  
    npm install mkdirp
  

Basic Usage

  
    const mkdirp = require('mkdirp');

    mkdirp('/tmp/foo/bar/baz').then(made =>
      console.log(`Made directories, starting with ${made}`)
    );
  

Using mkdirp with Callbacks

  
    const mkdirp = require('mkdirp');

    mkdirp('/tmp/foo/bar/baz', function (err) {
      if (err) console.error(err);
      else console.log('Directory created!');
    });
  

Using mkdirp with Sync

  
    const mkdirp = require('mkdirp');

    try {
      const made = mkdirp.sync('/tmp/foo/bar/baz');
      console.log(`Made directories, starting with ${made}`);
    } catch (err) {
      console.error(err);
    }
  

Custom File Modes

  
    const mkdirp = require('mkdirp');

    mkdirp('/tmp/foo/bar/baz', { mode: 0o755 }).then(made =>
      console.log(`Made directories with custom mode, starting with ${made}`)
    );
  

Handling Errors

  
    const mkdirp = require('mkdirp');

    mkdirp('/tmp/foo/bar/baz')
      .then(made => console.log(`Made directories, starting with ${made}`))
      .catch(err => {
        console.error('Something went wrong:', err.message);
      });
  

App Example Using mkdirp

Here is a comprehensive app example demonstrating the use of various mkdirp APIs.

  
    const express = require('express');
    const mkdirp = require('mkdirp');
    const path = require('path');
    const fs = require('fs');

    const app = express();
    const uploadDir = path.join(__dirname, 'uploads');

    app.post('/upload', async (req, res) => {
      try {
        await mkdirp(uploadDir);
        const filePath = path.join(uploadDir, 'file.txt');
        fs.writeFileSync(filePath, 'Some file content');
        res.send('File uploaded successfully!');
      } catch (err) {
        res.status(500).send('Error creating directories');
      }
    });

    app.listen(3000, () => {
      console.log('Server started on http://localhost:3000');
    });
  

By utilizing the different APIs provided by mkdirp, you can handle complex directory operations efficiently and effectively in your Node.js applications.

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