// Replaces a document in the bucket.
func (b *Bucket) Replace(key string, value interface{}, cas Cas, expiry uint32) (Cas, error) {
bytes, flags, err := b.transcoder.Encode(value)
if err != nil {
return 0, err
}
return b.hlpCasExec(func(cb ioCasCallback) (pendingOp, error) {
op, err := b.client.Replace([]byte(key), bytes, flags, gocbcore.Cas(cas), expiry, gocbcore.StoreCallback(cb))
return op, err
})
}
// Prepends a string value to a document.
func (b *Bucket) Prepend(key, value string) (Cas, error) {
return b.hlpCasExec(func(cb ioCasCallback) (pendingOp, error) {
op, err := b.client.Prepend([]byte(key), []byte(value), gocbcore.StoreCallback(cb))
return op, err
})
}