How do I handle migrations in Realm with TypeScript?

How do I handle migrations in Realm with TypeScript?

To handle migrations in Realm with TypeScript, you need to define a migration function that updates your schema.

Can you show me an example of a migration function?

Sure! Here's a simple example:

const migration = (oldRealm: Realm, newRealm: Realm) => {
    const oldObjects = oldRealm.objects('YourObject');
    const newObjects = newRealm.objects('YourObject');

    for (let i = 0; i < oldObjects.length; i++) {
        newObjects[i].newField = oldObjects[i].oldField;
    }
};

What if I need to change the schema version?

You can change the schema version by updating the schemaVersion property in your Realm configuration. Make sure to increment it whenever you make changes to your schema.

Is there a way to test migrations before applying them?

Yes, you can create a separate Realm instance for testing migrations. This allows you to apply migrations in a controlled environment before deploying them.