deferred-leveldown
A mock abstract-leveldown implementation that queues operations while a real abstract-leveldown instance is being opened.
:pushpin: This module will soon be deprecated, because its functionality is included in abstract-level.
Usage
If you are upgrading: please see UPGRADING.md.
deferred-leveldown implements the abstract-leveldown API so it can be used as a drop-in replacement where leveldown is needed.
put(), get(), getMany(), del(), batch() and clear() operations are all queued and kept in memory until the abstract-leveldown-compatible object has been opened through deferred-leveldown's open() method.
batch() operations will all be replayed as the array form. Chained-batch operations are converted before being stored.
const deferred = require('deferred-leveldown')
const leveldown = require('leveldown')
const db = deferred(leveldown('location'))
// Must always call open() first
db.open(function (err) {
// ...
})
// But can operate before open() has finished
db.put('foo', 'bar', function (err) {
// ...
})
Contributing
Level/deferred-leveldown is an OPEN Open Source Project. This means that:
Individuals making significant and valuable contributions are given commit-access to the project to contribute as they see fit. This project is more like an open wiki than a standard guarded open source project.
See the Contribution Guide for more details.
Donate
Support us with a monthly donation on Open Collective and help us continue our work.
License
MIT
