37 lines
1.6 KiB
Markdown
37 lines
1.6 KiB
Markdown
---
|
|
outline: deep
|
|
---
|
|
|
|
# Implementing NIP-50 `search` support
|
|
|
|
The [`nostr.Filter` type](https://pkg.go.dev/fiatjaf.com/nostr#Filter) has a `Search` field, so you basically just has to handle that if it's present.
|
|
|
|
It can be tricky to implement fulltext search properly though, so some [eventstores](../core/eventstore) implement it natively, such as [Bluge](https://pkg.go.dev/fiatjaf.com/nostr/eventstore/bluge), [OpenSearch](https://pkg.go.dev/fiatjaf.com/nostr/eventstore/opensearch) and [ElasticSearch](https://pkg.go.dev/fiatjaf.com/nostr/eventstore/elasticsearch) (although for the last two you'll need an instance of these database servers running, while with Bluge it's embedded).
|
|
|
|
If you have any of these you can just use them just like any other eventstore:
|
|
|
|
```go
|
|
func main () {
|
|
// other stuff here
|
|
|
|
normal := &lmdb.LMDBBackend{Path: "data"}
|
|
os.MkdirAll(normal.Path, 0755)
|
|
if err := normal.Init(); err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
search := bluge.BlugeBackend{Path: "search", RawEventStore: normal}
|
|
if err := search.Init(); err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
relay.StoreEvent = policies.SeqStore(normal.SaveEvent, search.SaveEvent)
|
|
relay.QueryStored = policies.SeqQuery(normal.QueryEvents, search.QueryEvents)
|
|
relay.DeleteEvent = policies.SeqDelete(normal.DeleteEvent, search.DeleteEvent)
|
|
|
|
// other stuff here
|
|
}
|
|
```
|
|
|
|
Note that in this case we're using the [LMDB](https://pkg.go.dev/fiatjaf.com/nostr/eventstore/lmdb) adapter for normal queries and it explicitly rejects any filter that contains a `Search` field, while [Bluge](https://pkg.go.dev/fiatjaf.com/nostr/eventstore/bluge) rejects any filter _without_ a `Search` value, which make them pair well together.
|