Please provide asynchronous query/update API.

Currently, the API to query(realm.objects('table')) or update(realm.create) documents is synchronous, this will lead to the javascript thread to be blocked.

It is inefficient if the table is big enough.

[markhomoki]

Thank you guys for your help. Now I could increase the performance a bit. Now it takes 20seconds less than before thanks to deleting the Realm file and then create a new instance.

I had to update the Realm config file. The only issue with this that I have to call getRealmInstance every time I want to access to the instance after the resetRealm function called because import loses the instance. Thanks again and sorry for messing up this issue, as at the end it is not really related to the async API.

const createRealm = () => new Realm(realmConfig);
let realm = createRealm();

const resetRealm = () => {
	realm.close();
	Realm.deleteFile(realmConfig);
	realm = createRealm();
};

const getRealmInstance = () => realm;
const realmInstance = getRealmInstance();

export { getRealmInstance, resetRealm };
export default realmInstance;

[allenhsu]

We’re using realm-js for a new react native project, we haven’t met any practical issue yet, but we’re also looking for an async version of query APIs.

I noticed in rpc.js it’s opening a sync XMLHttpRequest. Although it’s a local RPC call, but it’s still a network request rather than code execution. IMPO, it’ll be nice to make async request and provide Promise based query APIs. It’s also more intuitive to me since fetching data from server are all async and returning Promises.