From 95bed5d5a84659d55e80992e35797e31d27b8240 Mon Sep 17 00:00:00 2001
From: fiatjaf <fiatjaf@gmail.com>
Date: Wed, 12 Feb 2025 16:37:17 -0300
Subject: [PATCH] nak req --ids-only

---
 go.mod |  4 ++--
 go.sum |  4 ++--
 req.go | 39 +++++++++++++++++++++++++++++++--------
 3 files changed, 35 insertions(+), 12 deletions(-)

diff --git a/go.mod b/go.mod
index d4264cb..beb0af0 100644
--- a/go.mod
+++ b/go.mod
@@ -17,7 +17,8 @@ require (
 	github.com/mailru/easyjson v0.9.0
 	github.com/mark3labs/mcp-go v0.8.3
 	github.com/markusmobius/go-dateparser v1.2.3
-	github.com/nbd-wtf/go-nostr v0.49.3
+	github.com/nbd-wtf/go-nostr v0.49.7
+	golang.org/x/exp v0.0.0-20250106191152-7588d65b2ba8
 )
 
 require (
@@ -62,7 +63,6 @@ require (
 	github.com/wasilibs/go-re2 v1.3.0 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
 	golang.org/x/crypto v0.32.0 // indirect
-	golang.org/x/exp v0.0.0-20250106191152-7588d65b2ba8 // indirect
 	golang.org/x/net v0.34.0 // indirect
 	golang.org/x/sys v0.29.0 // indirect
 	golang.org/x/text v0.21.0 // indirect
diff --git a/go.sum b/go.sum
index 0b1a34a..29d0121 100644
--- a/go.sum
+++ b/go.sum
@@ -128,8 +128,8 @@ github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
-github.com/nbd-wtf/go-nostr v0.49.3 h1:7tsEdMZOtJ764JuMLffkbhVUi4yyf688dbqArLvItPs=
-github.com/nbd-wtf/go-nostr v0.49.3/go.mod h1:M50QnhkraC5Ol93v3jqxSMm1aGxUQm5mlmkYw5DJzh8=
+github.com/nbd-wtf/go-nostr v0.49.7 h1:4D9XCqjTJYqUPMuNJI27W5gaiklnTI12IzzWIAOFepE=
+github.com/nbd-wtf/go-nostr v0.49.7/go.mod h1:M50QnhkraC5Ol93v3jqxSMm1aGxUQm5mlmkYw5DJzh8=
 github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
diff --git a/req.go b/req.go
index a5442da..3a1a4bf 100644
--- a/req.go
+++ b/req.go
@@ -9,6 +9,7 @@ import (
 	"github.com/fiatjaf/cli/v3"
 	"github.com/mailru/easyjson"
 	"github.com/nbd-wtf/go-nostr"
+	"github.com/nbd-wtf/go-nostr/nip77"
 )
 
 const (
@@ -32,6 +33,10 @@ example:
 	DisableSliceFlagSeparator: true,
 	Flags: append(defaultKeyFlags,
 		append(reqFilterFlags,
+			&cli.BoolFlag{
+				Name:  "ids-only",
+				Usage: "use nip77 to fetch just a list of ids",
+			},
 			&cli.BoolFlag{
 				Name:        "stream",
 				Usage:       "keep the subscription open, printing all events as they are returned",
@@ -121,15 +126,33 @@ example:
 			}
 
 			if len(relayUrls) > 0 {
-				fn := sys.Pool.SubManyEose
-				if c.Bool("paginate") {
-					fn = paginateWithParams(c.Duration("paginate-interval"), c.Uint("paginate-global-limit"))
-				} else if c.Bool("stream") {
-					fn = sys.Pool.SubMany
-				}
+				if c.Bool("ids-only") {
+					seen := make(map[string]struct{}, max(500, filter.Limit))
+					for _, url := range relayUrls {
+						ch, err := nip77.FetchIDsOnly(ctx, url, filter)
+						if err != nil {
+							log("negentropy call to %s failed: %s", url, err)
+							continue
+						}
+						for id := range ch {
+							if _, ok := seen[id]; ok {
+								continue
+							}
+							seen[id] = struct{}{}
+							stdout(id)
+						}
+					}
+				} else {
+					fn := sys.Pool.SubManyEose
+					if c.Bool("paginate") {
+						fn = paginateWithParams(c.Duration("paginate-interval"), c.Uint("paginate-global-limit"))
+					} else if c.Bool("stream") {
+						fn = sys.Pool.SubMany
+					}
 
-				for ie := range fn(ctx, relayUrls, nostr.Filters{filter}) {
-					stdout(ie.Event)
+					for ie := range fn(ctx, relayUrls, nostr.Filters{filter}) {
+						stdout(ie.Event)
+					}
 				}
 			} else {
 				// no relays given, will just print the filter