vertx / io.vertx.core.file / FileSystem / open

# open

`abstract fun open(path: String, options: OpenOptions, handler: Handler<AsyncResult<AsyncFile>>): FileSystem`

Open the file represented by `path`, asynchronously.

The file is opened for both reading and writing. If the file does not already exist it will be created.

### Parameters

`path` - path to the file

`options` - options describing how the file should be opened

Return
a reference to this, so the API can be used fluently