From 367a1761fe8745c61661947e07e4887fbc827ea9 Mon Sep 17 00:00:00 2001
From: Ranadeep Biswas <mail@rnbguy.at>
Date: Thu, 6 Jun 2024 10:33:17 +0200
Subject: [PATCH 1/3] add hex dep

---
 Cargo.lock                 | 1 +
 modules/sov-ibc/Cargo.toml | 1 +
 2 files changed, 2 insertions(+)

diff --git a/Cargo.lock b/Cargo.lock
index 7ae21c2e..a78057e4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6150,6 +6150,7 @@ dependencies = [
  "base64 0.21.7",
  "borsh",
  "derive_more",
+ "hex",
  "ibc-app-transfer",
  "ibc-client-tendermint",
  "ibc-core",
diff --git a/modules/sov-ibc/Cargo.toml b/modules/sov-ibc/Cargo.toml
index 098d2f01..8710ab19 100644
--- a/modules/sov-ibc/Cargo.toml
+++ b/modules/sov-ibc/Cargo.toml
@@ -26,6 +26,7 @@ serde       = { workspace = true }
 serde_json  = { workspace = true, optional = true }
 thiserror   = { workspace = true }
 tracing     = { workspace = true }
+hex         = { workspace = true }
 
 # internal dependencies
 sov-ibc-transfer = { path = "../sov-ibc-transfer" }

From 48f5c7ddb46ff33dd9a7b59de753559a0af8c374 Mon Sep 17 00:00:00 2001
From: Ranadeep Biswas <mail@rnbguy.at>
Date: Thu, 6 Jun 2024 10:33:30 +0200
Subject: [PATCH 2/3] rpc method for commitmentPrefix

---
 modules/sov-ibc/src/rpc/methods.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/modules/sov-ibc/src/rpc/methods.rs b/modules/sov-ibc/src/rpc/methods.rs
index f2249836..92dfac6e 100644
--- a/modules/sov-ibc/src/rpc/methods.rs
+++ b/modules/sov-ibc/src/rpc/methods.rs
@@ -711,4 +711,15 @@ impl<S: Spec> Ibc<S> {
             proof_height,
         ))
     }
+
+    #[rpc_method(name = "commitmentPrefix")]
+    pub fn commitment_prefix(&self, working_set: &mut WorkingSet<S>) -> RpcResult<String> {
+        let ibc_ctx = IbcContext::new(self, Rc::new(RefCell::new(working_set)));
+
+        let commitment_prefix = ibc_ctx.commitment_prefix();
+
+        let base64_commitment_prefix = hex::encode(commitment_prefix.as_bytes());
+
+        Ok(base64_commitment_prefix)
+    }
 }

From 165066a2509dba85a7bd5f7c2af6d37073c0f903 Mon Sep 17 00:00:00 2001
From: Ranadeep Biswas <mail@rnbguy.at>
Date: Thu, 6 Jun 2024 11:06:34 +0200
Subject: [PATCH 3/3] rm hex dep

---
 Cargo.lock                         | 1 -
 modules/sov-ibc/Cargo.toml         | 1 -
 modules/sov-ibc/src/rpc/methods.rs | 8 ++------
 3 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index a78057e4..7ae21c2e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6150,7 +6150,6 @@ dependencies = [
  "base64 0.21.7",
  "borsh",
  "derive_more",
- "hex",
  "ibc-app-transfer",
  "ibc-client-tendermint",
  "ibc-core",
diff --git a/modules/sov-ibc/Cargo.toml b/modules/sov-ibc/Cargo.toml
index 8710ab19..098d2f01 100644
--- a/modules/sov-ibc/Cargo.toml
+++ b/modules/sov-ibc/Cargo.toml
@@ -26,7 +26,6 @@ serde       = { workspace = true }
 serde_json  = { workspace = true, optional = true }
 thiserror   = { workspace = true }
 tracing     = { workspace = true }
-hex         = { workspace = true }
 
 # internal dependencies
 sov-ibc-transfer = { path = "../sov-ibc-transfer" }
diff --git a/modules/sov-ibc/src/rpc/methods.rs b/modules/sov-ibc/src/rpc/methods.rs
index 92dfac6e..00a86f4c 100644
--- a/modules/sov-ibc/src/rpc/methods.rs
+++ b/modules/sov-ibc/src/rpc/methods.rs
@@ -713,13 +713,9 @@ impl<S: Spec> Ibc<S> {
     }
 
     #[rpc_method(name = "commitmentPrefix")]
-    pub fn commitment_prefix(&self, working_set: &mut WorkingSet<S>) -> RpcResult<String> {
+    pub fn commitment_prefix(&self, working_set: &mut WorkingSet<S>) -> RpcResult<Vec<u8>> {
         let ibc_ctx = IbcContext::new(self, Rc::new(RefCell::new(working_set)));
 
-        let commitment_prefix = ibc_ctx.commitment_prefix();
-
-        let base64_commitment_prefix = hex::encode(commitment_prefix.as_bytes());
-
-        Ok(base64_commitment_prefix)
+        Ok(ibc_ctx.commitment_prefix().into_vec())
     }
 }