follow button

src/hooks/follows.ts

@@ -0,0 +1,28 @@
+import { useMemo } from "react";
+import { EventKind, ReplaceableNoteStore, RequestBuilder } from "@snort/system";
+import { useRequestBuilder } from "@snort/system-react";
+import { System } from "index";
+
+export default function useFollows(pubkey: string, leaveOpen = false) {
+  const sub = useMemo(() => {
+    const b = new RequestBuilder(`follows:${pubkey.slice(0, 12)}`);
+    b.withOptions({
+      leaveOpen,
+    })
+      .withFilter()
+      .authors([pubkey])
+      .kinds([EventKind.ContactList]);
+    return b;
+  }, [pubkey, leaveOpen]);
+
+  const { data } = useRequestBuilder<ReplaceableNoteStore>(
+    System,
+    ReplaceableNoteStore,
+    sub
+  );
+
+  const contacts = (data?.tags ?? []).filter((t) => t.at(0) === "p");
+  const relays = JSON.parse(data?.content ?? "{}");
+
+  return { contacts, relays };
+}