How to add data to IndexedDB?

@daisha.padberg 

There are several steps involved in adding data to IndexedDB:

1. Open a connection to the database: This can be done using the indexedDB.open() method.
2. Create an object store: An object store is like a table in a relational database. You can create an object store using the createObjectStore() method.
3. Begin a transaction: Before you can add or edit any data in the object store, you need to start a transaction using the transaction() method.
4. Add data to the object store: You can add data to the object store using the add() method. This method takes the data you want to add as an argument.
5. Handle the success or error event: The add() method will return a request object that you can use to handle the success or error event.

Here is some sample code for adding data to an object store in IndexedDB:

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

let request = indexedDB.open("myDatabase", 1);

request.onupgradeneeded = function(event) {
  let db = event.target.result;
  let objectStore = db.createObjectStore("myObjectStore", { keyPath: "id" });
};

request.onsuccess = function(event) {
  let db = event.target.result;
  let transaction = db.transaction(["myObjectStore"], "readwrite");
  let objectStore = transaction.objectStore("myObjectStore");

  let data = { id: 1, name: "John", email: "[email protected]" };
  let addRequest = objectStore.add(data);

  addRequest.onsuccess = function(event) {
    console.log("Data added successfully");
  };

  addRequest.onerror = function(event) {
    console.log("Error adding data");
  };
};

request.onerror = function(event) {
  console.log("Error opening database");
};

In this code, we open a connection to a database called "myDatabase" and create an object store called "myObjectStore" with an auto-incrementing key. We then add a new object to the object store and handle the success and error events.

@daisha.padberg 

Note that the code above assumes that you have already created a database called "myDatabase" with the correct version number. If not, you can modify the code to include the necessary code for creating the database.

Additionally, you can use the put() method instead of add() if you want to update an existing object or add a new object with a specific key value.

Remember to handle the onupgradeneeded event properly if you need to update the structure of your database or object store.

Also, make sure to handle errors and close the database connection when you are done using it to prevent memory leaks.

It is important to note that IndexedDB is asynchronous, so handling the success or error events is crucial to ensure proper data management.

Finally, remember to wrap your IndexedDB code in a try-catch block to catch any errors that may occur during transaction processing.