Storage and Broadcast

The RealtimeKit Stores API allows you to create multiple key-value pair realtime stores. Users can subscribe to changes in a store and receive real-time updates. Data is stored until a session is active.

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Create a Store

You can create a realtime store (changes are synced with other users):

Param	Type	Description	Required
`name`	string	Name of the store	true

To create a store:

Update a Store

You can add, update or delete entries in a store:

Param	Type	Description	Required
`key`	string	Unique identifier used to store/update a value in the store	Yes
`value`	StoreValue	Value that can be stored against a key	Yes

type StoreValue = string | number | object | array;

const stores = useRealtimeKitSelector((m) => m.stores.stores);
const store = stores.get("myStore");

await store.set("user", { name: "John Doe" });

await store.update("user", { age: 34 }); // { name: 'John Doe', age: 34 }

await store.delete("user");

type StoreValue = string | number | object | array;

const { stores } = meeting.stores;
const store = stores.get("myStore");

await store.set("user", { name: "John Doe" });

await store.update("user", { age: 34 }); // { name: 'John Doe', age: 34 }

await store.delete("user");

type StoreValue = string | number | object | array;

const { stores } = meeting.stores;
const store = stores.get("myStore");

await store.set("user", { name: "John Doe" });

await store.update("user", { age: 34 }); // { name: 'John Doe', age: 34 }

await store.delete("user");

You can attach event listeners on a store's key, which fire when the value changes.

const stores = useRealtimeKitSelector((m) => m.stores.stores);
const store = stores.get('myStore');
store.subscribe('key', (data) => {
    console.log(data);
});

// subscribe to all keys of a store
store.subscribe('\*', (data) => {
console.log(data);
});

store.unsubscribe('key');

const { stores } = meeting.stores;
const store = stores.get('myStore');
store.subscribe('key', (data) => {
    console.log(data);
});

// subscribe to all keys of a store
store.subscribe('\*', (data) => {
console.log(data);
});

store.unsubscribe('key');

const { stores } = meeting.stores;
const store = stores.get('myStore');
store.subscribe('key', (data) => {
    console.log(data);
});

// subscribe to all keys of a store
store.subscribe('\*', (data) => {
console.log(data);
});

store.unsubscribe('key');

val store = meeting.stores.create("myStore")
val keyChangeCallback = { key: String, value: Any? ->
  println(value)
}
store.subscribe("key", keyChangeCallback)

// Subscribe to all keys
store.subscribe(RtkStore.WILDCARD_KEY) { key, value ->
  println(value)
}

store.unsubscribe("key", keyChangeCallback)

let store = meeting.stores.create(name: "myStore")
let keyChangeCallback: ((String, (Any?)) -> Void) = { key, value in
    print(value ?? "null")
}
store.subscribe(key: "key", onChange: keyChangeCallback)

// Subscribe to all keys
store.subscribe(key: RtkStore.Companion().WILDCARD_KEY) { key, value in
    print(value ?? "null")
}

store.unsubscribe(key: "key", onChange: keyChangeCallback)

Fetch Store Data

You can fetch the data stored in the store:

const stores = useRealtimeKitSelector((m) => m.stores.stores);
const store = stores.get('myStore');

// fetch value for a specific key
const data = store.get('key');

// fetch all the data in the store
const data = store.getAll();

const { stores } = meeting.stores;
const store = stores.get('myStore');

// fetch value for a specific key
const data = store.get('key');

// fetch all the data in the store
const data = store.getAll();

const { stores } = meeting.stores;
const store = stores.get('myStore');

// fetch value for a specific key
const data = store.get('key');

// fetch all the data in the store
const data = store.getAll();