From 5137e4e4e710aaf3c38c2507a4e65b76d99a4834 Mon Sep 17 00:00:00 2001
From: P1R0 <p1r0@nethunters.xyz>
Date: Tue, 3 Sep 2024 16:58:15 -0600
Subject: [PATCH] refactor(examples): use tokio instead of async-std in
 identify example (#5579)

## Description

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Following on issue #4449
refactor: use tokio instead of async-std in the identify example and
remove unnecesary dependencies

## Notes & open questions

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## Change checklist

* Removed unnecessary dependencies on examples/identify/Cargo.toml

<!-- Please add a Changelog entry in the appropriate crates and bump the
crate versions if needed. See
<https://github.com/libp2p/rust-libp2p/blob/master/docs/release.md#development-between-releases>-->

- [x] I have performed a self-review of my own code
- [ ] I have made corresponding changes to the documentation
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] A changelog entry has been made in the appropriate crates

---------

Co-authored-by: David E. Perez Negron R. <david@nethunters.xyz>
Co-authored-by: Darius Clark <dariusc93@users.noreply.github.com>
---
 Cargo.lock                    | 3 +--
 examples/identify/Cargo.toml  | 5 ++---
 examples/identify/src/main.rs | 4 ++--
 3 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 9c8eae458fc..5c419ed0348 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2311,10 +2311,9 @@ dependencies = [
 name = "identify-example"
 version = "0.1.0"
 dependencies = [
- "async-std",
- "async-trait",
  "futures",
  "libp2p",
+ "tokio",
  "tracing",
  "tracing-subscriber",
 ]
diff --git a/examples/identify/Cargo.toml b/examples/identify/Cargo.toml
index cbe569b9d07..8d12699afa7 100644
--- a/examples/identify/Cargo.toml
+++ b/examples/identify/Cargo.toml
@@ -9,10 +9,9 @@ license = "MIT"
 release = false
 
 [dependencies]
-async-std = { version = "1.12", features = ["attributes"] }
-async-trait = "0.1"
+tokio = { version = "1.37.0", features = ["full"] }
 futures = { workspace = true }
-libp2p = { path = "../../libp2p", features = ["async-std", "dns", "dcutr", "identify", "macros", "noise", "ping", "relay", "rendezvous", "tcp", "tokio","yamux"] }
+libp2p = { path = "../../libp2p", features = ["identify", "noise", "tcp", "tokio", "yamux"] }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true, features = ["env-filter"] }
 
diff --git a/examples/identify/src/main.rs b/examples/identify/src/main.rs
index 916317a5a43..22474061da6 100644
--- a/examples/identify/src/main.rs
+++ b/examples/identify/src/main.rs
@@ -25,14 +25,14 @@ use libp2p::{core::multiaddr::Multiaddr, identify, noise, swarm::SwarmEvent, tcp
 use std::{error::Error, time::Duration};
 use tracing_subscriber::EnvFilter;
 
-#[async_std::main]
+#[tokio::main]
 async fn main() -> Result<(), Box<dyn Error>> {
     let _ = tracing_subscriber::fmt()
         .with_env_filter(EnvFilter::from_default_env())
         .try_init();
 
     let mut swarm = libp2p::SwarmBuilder::with_new_identity()
-        .with_async_std()
+        .with_tokio()
         .with_tcp(
             tcp::Config::default(),
             noise::Config::new,