One common task in IndexedDB is adding data to an object store. An object store is similar to a table in a traditional database and is where the actual data is stored. To add data to an object store, you’ll need to follow these steps:

1. Open a connection to the database: ```javascript const request = indexedDB.open(‘my-database’, 1);

request.onerror = (event) => { console.error(‘Database error:’, event.target.error); };

request.onupgradeneeded = (event) => { const db = event.target.result;

// Create an object store if it doesn’t exist if (!db.objectStoreNames.contains(‘my-store’)) { db.createObjectStore(‘my-store’, { keyPath: ‘id’ }); } };

request.onsuccess = (event) => { const db = event.target.result; addData(db); };

2. Add data to the object store:
```javascript
function addData(db) {
  const transaction = db.transaction('my-store', 'readwrite');
  const objectStore = transaction.objectStore('my-store');

  const data = { id: 1, name: 'John Doe', email: 'john@example.com' };

  const request = objectStore.add(data);

  request.onsuccess = (event) => {
    console.log('Data added successfully');
  };

  request.onerror = (event) => {
    console.error('Error adding data:', event.target.error);
  };
}

In this example, we first opened a connection to the database using indexedDB.open(). If the database or object store doesn’t exist, we use the onupgradeneeded event to create them. Otherwise, we proceed to the onsuccess event.

Inside the addData() function, we create a new transaction with the object store in 'readwrite' mode to perform write operations. We then use objectStore.add() to add the data to the object store. If the operation is successful, onsuccess will be triggered, otherwise onerror will be called.

Remember to handle errors appropriately and to close the database connection when you’re done with it to free up resources.

#TechTips #IndexedDB