xxx: Include DispatchError and use balanace_transfer_with_params

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

cli/src/commands/metadata.rs

@@ -9,6 +9,7 @@ use jsonrpsee::client_transport::ws::Uri;
 use scale::Decode;
 use std::io::{
     self,
+    Read,
     Write,
 };
 use subxt_codegen::utils::fetch_metadata_hex;
@@ -35,6 +36,15 @@ pub async fn run(opts: Opts) -> color_eyre::Result<()> {
     match opts.format.as_str() {
         "json" => {
             let bytes = hex::decode(hex_data.trim_start_matches("0x"))?;
+
+            // let metadata = <RuntimeMetadataPrefixed as Decode>::decode(&mut &bytes[..])?;
+            // let mut file = std::fs::File::open(
+            //     "/home/lexnv/workspace/subxt/artifacts/Balances.scale",
+            // )
+            // .unwrap();
+            // let mut bytes = Vec::new();
+            // file.read_to_end(&mut bytes).unwrap();
+
             let metadata = <RuntimeMetadataPrefixed as Decode>::decode(&mut &bytes[..])?;
             let json = serde_json::to_string_pretty(&metadata)?;
             println!("{json}");

examples/examples/balance_transfer_with_params.rs

@@ -24,7 +24,8 @@ use subxt::{
     OnlineClient,
 };
 
-#[subxt::subxt(runtime_metadata_path = "../artifacts/polkadot_metadata.scale")]
+// #[subxt::subxt(runtime_metadata_path = "../artifacts/polkadot_metadata.scale")]
+#[subxt::subxt(runtime_metadata_path = "../artifacts/Balances.scale")]
 pub mod polkadot {}
 
 #[tokio::main]
@@ -40,7 +41,8 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     // Create a transaction to submit:
     let tx = polkadot::tx()
         .balances()
-        .transfer(dest, 123_456_789_012_345);
+        .transfer(dest, 123_456_789_012_345)
+        .unvalidated();
 
     // Configure the transaction tip and era:
     let tx_params = Params::new()

metadata/src/stripped.rs

@@ -165,6 +165,16 @@ pub fn keep_pallet<T: AsRef<str>>(
 
     // Collect type ids from the pallet.
     let mut type_ids = collect_pallet_types(pallet);
+    for ty in metadata.types.types() {
+        let Some(ident) = ty.ty().path().ident() else {
+            continue
+        };
+        // Collect custom type IDs.
+        if ident == "DispatchError" {
+            type_ids.insert(ty.id());
+        }
+    }
+    // sp_runtime:: DispatchError
 
     // Collect extrisic type IDs.
     type_ids.insert(metadata.extrinsic.ty.id());

testing/integration-tests/src/codegen/mod.rs

@@ -13,4 +13,8 @@
 #[allow(clippy::all)]
 mod polkadot;
 
+#[rustfmt::skip]
+#[allow(clippy::all)]
+mod balances;
+
 mod codegen_documentation;