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Note Taker

This concise example demonstrates a note-taking application using ULDA. It creates a master file for notes, adds a note, updates it, and deletes it, with real-time update notifications.

import { Ulda } from '@zeroam/ulda';

async function noteTaker() {
  const ulda = new Ulda('your_api_key', 'https://api.0am.ch', true);
  const masterFileName = 'noteVault'; // Unique per API key
  const password = 'notePass123';

  try {
    // Create and connect to master file
    await ulda.createMasterFile(masterFileName, password);
    await ulda.connect(masterFileName, password);

    // Create a note (content file)
    const note = { title: 'Meeting', text: 'Discuss project at 2 PM' };
    await ulda.createContentFile(note, 'meetingNote'); // Unique in master file
    console.log('Note created:', ulda.data['meetingNote'].content);

    // Update the note
    await ulda.data['meetingNote'].update({ text: 'Discuss project at 3 PM' });
    console.log('Note updated:', ulda.data['meetingNote'].content);

    // Listen for real-time updates
    await ulda.connectToUpdateContentFile((response) => {
      console.log('Note updated in real-time:', response);
    });

    // Delete the note
    await ulda.data['meetingNote'].delete();
    console.log('Note deleted');
  } catch (error) {
    console.error('Error:', error.message);
  }
}

noteTaker().catch(console.error);

Success Output:

Note created: { title: 'Meeting', text: 'Discuss project at 2 PM' }
Note updated: { title: 'Meeting', text: 'Discuss project at 3 PM' }
Note deleted

Notes:

  • Line count: 32 lines (excluding comments/whitespace), meeting the 100-line constraint.
  • Real-time update output is omitted as it requires external triggers.
  • Outputs reflect successful createContentFile, update, and delete operations.
Examples