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XXX: Backup v15 show md via metadata_at_version

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Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>
This commit is contained in:
Alexandru Vasile
2023-02-02 14:46:23 +00:00
parent 5369888edc
commit 143e31f025
11 changed files with 64 additions and 44 deletions
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subxt/src/client/online_client.rs
+24 -6
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@@ -109,6 +109,8 @@ impl<T: Config> OnlineClient<T> {
pub async fn from_rpc_client<R: RpcClientT>(
rpc_client: Arc<R>,
) -> Result<OnlineClient<T>, Error> {
println!("CONSTRUCT CLIENT");
let rpc = Rpc::<T>::new(rpc_client.clone());
let (genesis_hash, runtime_version, metadata) = future::join3(
rpc.genesis_hash(),
@@ -155,20 +157,36 @@ impl<T: Config> OnlineClient<T> {
/// Fetch the metadata from substrate using the runtime API.
async fn fetch_metadata(rpc: &Rpc<T>) -> Result<Metadata, Error> {
let bytes = rpc.state_call("Metadata_metadata", None, None).await?;
use codec::Encode;
let decoded: (Vec<String>, OpaqueMetadata) = Decode::decode(&mut &*bytes)?;
let bytes = decoded.1 .0;
let param = 15u32.encode();
let bytes = rpc
.state_call("Metadata_metadata_at_version", Some(&param), None)
.await?;
// println!("GOT BYTES: {:?}", bytes);
let decoded: Option<OpaqueMetadata> = Decode::decode(&mut &*bytes)?;
println!("Decoded opaque");
let decoded = decoded.unwrap();
let bytes = &decoded.0;
let meta: RuntimeMetadataPrefixed = Decode::decode(&mut &bytes[..])?;
let metadata: Metadata = meta.try_into()?;
// let metadata: Metadata = meta.try_into()?;
println!("Availb methods {:?}", decoded.0);
// println!("Availb methods {:?}", decoded.0);
// let cursor = &mut &*bytes;
// let _ = <Compact<u32>>::decode(cursor)?;
// let meta: RuntimeMetadataPrefixed = Decode::decode(cursor)?;
// let meta: frame_metadata::RuntimeMetadataPrefixed = Decode::decode(cursor)?;
println!("METADATA {:#?}", meta);
let metadata: Metadata = meta.try_into()?;
Ok(metadata)
}