From 078ee94465e984aeacf71e89210e6d2f42bef385 Mon Sep 17 00:00:00 2001
From: fiatjaf <fiatjaf@gmail.com>
Date: Wed, 22 Apr 2026 15:16:40 -0300
Subject: [PATCH] sdk: FetchBlossomServerList().

---
 sdk/lists_other.go | 34 ++++++++++++++++++++++++++++++++++
 sdk/system.go      |  2 ++
 2 files changed, 36 insertions(+)
 create mode 100644 sdk/lists_other.go

diff --git a/sdk/lists_other.go b/sdk/lists_other.go
new file mode 100644
index 0000000..1e41074
--- /dev/null
+++ b/sdk/lists_other.go
@@ -0,0 +1,34 @@
+package sdk
+
+import (
+	"context"
+
+	"fiatjaf.com/nostr"
+	cache_memory "fiatjaf.com/nostr/sdk/cache/memory"
+)
+
+type BlossomURL string
+
+func (r BlossomURL) Value() string { return string(r) }
+
+func (sys *System) FetchBlossomServerList(ctx context.Context, pubkey nostr.PubKey) GenericList[string, BlossomURL] {
+	sys.blossomServerListCacheOnce.Do(func() {
+		if sys.BlossomServerListCache == nil {
+			sys.BlossomServerListCache = cache_memory.New[GenericList[string, BlossomURL]](1000)
+		}
+	})
+
+	ml, _ := fetchGenericList(sys, ctx, pubkey, 10101, kind_10101, func(t nostr.Tag) (BlossomURL, bool) {
+		if len(t) < 2 {
+			return "", false
+		}
+
+		nm, err := nostr.NormalizeHTTPURL(t[1])
+		if err != nil {
+			return "", false
+		}
+
+		return BlossomURL(nm), true
+	}, sys.BlossomServerListCache)
+	return ml
+}
diff --git a/sdk/system.go b/sdk/system.go
index 2677427..4aa19bf 100644
--- a/sdk/system.go
+++ b/sdk/system.go
@@ -61,6 +61,8 @@ type System struct {
 	MediaFollowListCache          cache.Cache32[GenericList[nostr.PubKey, ProfileRef]]
 	goodWikiAuthorListCacheOnce   sync.Once
 	GoodWikiAuthorListCache       cache.Cache32[GenericList[nostr.PubKey, ProfileRef]]
+	blossomServerListCacheOnce    sync.Once
+	BlossomServerListCache        cache.Cache32[GenericList[string, BlossomURL]]
 	gitAuthorListCacheOnce        sync.Once
 	GitAuthorListCache            cache.Cache32[GenericList[nostr.PubKey, ProfileRef]]
 	relaySetsCacheOnce            sync.Once