onValue

Subscribe to real-time value changes at the given path.

Usage

Fires immediately with the current value, then on every change.

Example

import { db } from 'refirebase';

const unsubscribe = await db.realtime.onValue('users/123', (data) => {
  console.log('User data:', data);
});

// Later, to stop listening:
unsubscribe();

Parameters

Param	Type	Description
`path*`	`string`	The path to the data in the database.
`callback*`	`(data: T \| null) => void`	Function called immediately and whenever the data changes.

Return value

Returns

Promise<() => void>

A promise that resolves to an unsubscribe function.