amb-relay/main.go
2025-03-27 08:12:16 +01:00

83 lines
2.3 KiB
Go

package main
import (
"context"
"fmt"
"log"
"net/http"
"github.com/fiatjaf/eventstore/badger"
"github.com/fiatjaf/khatru"
"github.com/nbd-wtf/go-nostr"
)
const (
apiKey string = "xyz"
typesenseHost string = "http://localhost:8108"
collectionName string = "amb-test"
)
func main() {
err := CheckOrCreateCollection("amb-test")
if err != nil {
log.Fatalf("Failed to check/create collection: %v", err)
}
relay := khatru.NewRelay()
relay.Info.Name = "my typesense relay"
// tsRelay.Info.PubKey = "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798"
relay.Info.Description = "this is the typesense custom relay"
// tsRelay.Info.Icon = "https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Fliquipedia.net%2Fcommons%2Fimages%2F3%2F35%2FSCProbe.jpg&f=1&nofb=1&ipt=0cbbfef25bce41da63d910e86c3c343e6c3b9d63194ca9755351bb7c2efa3359&ipo=images"
dbts := badger.BadgerBackend{Path: "/tmp/khatru-badgern-tmp-2"}
if err := dbts.Init(); err != nil {
panic(err)
}
relay.OnConnect = append(relay.OnConnect, func(ctx context.Context) {
khatru.RequestAuth(ctx)
})
relay.StoreEvent = append(relay.StoreEvent)
relay.QueryEvents = append(relay.QueryEvents, handleQuery)
relay.CountEvents = append(relay.CountEvents, dbts.CountEvents)
relay.DeleteEvent = append(relay.DeleteEvent, dbts.DeleteEvent)
relay.ReplaceEvent = append(relay.ReplaceEvent, dbts.ReplaceEvent, handleEvent) // use badger for counting events -> TODO switch to typesense?
relay.Negentropy = true
relay.RejectEvent = append(relay.RejectEvent,
func(ctx context.Context, event *nostr.Event) (reject bool, msg string) {
if event.Kind != 30142 {
return true, "we don't allow these kinds here. It's a 30142 only place."
}
return false, ""
},
)
fmt.Println("running on :3334")
http.ListenAndServe(":3334", relay)
}
func handleEvent(ctx context.Context, event *nostr.Event) error {
IndexNostrEvent(collectionName, event)
return nil
}
func handleQuery(ctx context.Context, filter nostr.Filter) (chan *nostr.Event, error) {
ch := make(chan *nostr.Event)
nostrs, err := SearchResources(collectionName, filter.Search)
if err != nil {
log.Printf("Search failed: %v", err)
return ch, err
}
go func() {
for _, evt := range nostrs {
ch <- &evt
}
close(ch)
}()
return ch, nil
}