24 lines
756 B
Markdown
24 lines
756 B
Markdown
# Transactions
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> Transactions are currently an experimental feature as they can not be integrated as easily as the other Firebase features. Please see the [Firebase documentation](https://firebase.google.com/docs/reference/js/firebase.database.Reference#transaction) for full implemtation details.
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## Example
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```javascript
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const ref = firebase.database().ref('user/posts');
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ref.transaction((posts) => {
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return (posts || 0) + 1;
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}, (error, committed, snapshot) => {
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if (error) {
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console.log('Something went wrong', error);
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} else if (!committed) {
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console.log('Aborted'); // Returning undefined will trigger this
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} else {
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console.log('User posts incremented by 1');
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}
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console.log('User posts is now: ', snapshot.val());
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});
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```
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