From dfb1e0b850f93398f7c58494007d11f79fb492cb Mon Sep 17 00:00:00 2001
From: Dmitryii Osipov <dmith.osipov@gmail.com>
Date: Mon, 25 Sep 2023 12:54:47 +0400
Subject: [PATCH] [gear-api] Fix encode payload in `programState.readUsingWasm`
 method (#1410)

---
 api/CHANGELOG.md | 8 ++++++++
 api/package.json | 2 +-
 api/src/State.ts | 7 ++-----
 3 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/api/CHANGELOG.md b/api/CHANGELOG.md
index 2de3bfa4ca..f97901c4aa 100644
--- a/api/CHANGELOG.md
+++ b/api/CHANGELOG.md
@@ -1,3 +1,11 @@
+## 0.33.6
+
+_09/25/2023_
+
+### Changes
+https://github.com/gear-tech/gear-js/pull/1410
+- Fix payload encoding in state.readUsingWasm method.
+
 ## 0.33.5
 
 _09/18/2023_
diff --git a/api/package.json b/api/package.json
index 7aa35ca26f..faf6cd5ae5 100644
--- a/api/package.json
+++ b/api/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gear-js/api",
-  "version": "0.33.5",
+  "version": "0.33.6",
   "description": "A JavaScript library that provides functionality to connect GEAR Component APIs.",
   "main": "cjs/index.js",
   "module": "index.js",
diff --git a/api/src/State.ts b/api/src/State.ts
index 468912e22e..8afc1731c9 100644
--- a/api/src/State.ts
+++ b/api/src/State.ts
@@ -18,17 +18,14 @@ export class GearProgramState extends GearProgramStorage {
     programMeta: ProgramMetadata,
   ): Promise<Codec> {
     const fnTypes = stateMeta?.functions[params.fn_name];
-    const stateType =
-      programMeta.version === MetadataVersion.V2Rust ? (programMeta.types.state as HumanTypesRepr).input : undefined;
 
     const argument =
       fnTypes?.input !== undefined && fnTypes?.input !== null
         ? Array.from(stateMeta.createType(fnTypes.input, params.argument).toU8a())
         : null;
 
-    const payload = isNaN(stateType)
-      ? []
-      : Array.from(programMeta.createType((programMeta.types.state as HumanTypesRepr).input, params.payload).toU8a());
+    const payload =
+      programMeta.version === MetadataVersion.V2Rust ? encodePayload(params.payload, programMeta, 'state') : [];
 
     const code =
       typeof params.wasm === 'string' ? params.wasm : CreateType.create<Bytes>('Bytes', Array.from(params.wasm));