Feat balances rpc endpoint

crates/sugarfunge-api-types/src/asset.rs

@@ -81,15 +81,14 @@ pub struct AssetBalanceOutput {
 #[derive(Serialize, Deserialize)]
 pub struct AssetBalancesInput {
     pub account: String,
-    pub class_id: Option<u64>,
 }
 
 #[derive(Serialize, Deserialize)]
 pub struct AssetBalancesOutput {
     pub balances: Vec<AssetBalanceItemOutput>,
 }
 
-#[derive(Serialize, Deserialize)]
+#[derive(Serialize, Deserialize, Debug)]
 pub struct AssetBalanceItemOutput {
     pub class_id: ClassId,
     pub asset_id: AssetId,

src/asset.rs

@@ -184,6 +184,26 @@ pub async fn balance(
     }))
 }
 
+/// Get balance for given asset
+pub async fn balances(
+    data: web::Data<AppState>,
+    req: web::Json<AssetBalancesInput>,
+) -> error::Result<HttpResponse> {
+    let account = sp_core::sr25519::Public::from_str(&req.account).map_err(map_account_err)?;
+    let api = &data.api;
+    let params = &[jsonrpsee_types::to_json_value(account)?];
+    let result = api
+        .client
+        .rpc()
+        .client
+        .request("asset_balancesOfOwner", params)
+        .await;
+
+    let balances = result.map_err(map_subxt_err)?;
+
+    Ok(HttpResponse::Ok().json(AssetBalancesOutput { balances }))
+}
+
 /// Transfer asset from to accounts
 pub async fn transfer_from(
     data: web::Data<AppState>,

src/main.rs

@@ -6,7 +6,7 @@ use actix_web::{
 };
 use command::*;
 use state::*;
-use std::sync::{Arc};
+use std::sync::Arc;
 use structopt::StructOpt;
 use subxt::ClientBuilder;
 use sugarfunge_api_types::sugarfunge;
@@ -36,9 +36,7 @@ async fn main() -> std::io::Result<()> {
         .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, e.to_string()))?
         .to_runtime_api::<sugarfunge::RuntimeApi<sugarfunge::DefaultConfig>>();
 
-    let state = AppState {
-        api: Arc::new(api),
-    };
+    let state = AppState { api: Arc::new(api) };
 
     HttpServer::new(move || {
         let cors = Cors::default()
@@ -64,6 +62,7 @@ async fn main() -> std::io::Result<()> {
             .route("asset/mint", web::post().to(asset::mint))
             .route("asset/burn", web::post().to(asset::burn))
             .route("asset/balance", web::post().to(asset::balance))
+            .route("asset/balances", web::post().to(asset::balances))
             .route("asset/transfer_from", web::post().to(asset::transfer_from))
             .route("currency/issue", web::post().to(currency::issue))
             .route("currency/issuance", web::post().to(currency::issuance))