Answer for stack question 8663

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

examples/examples/stack_8663.rs

@@ -0,0 +1,26 @@
+use subxt::{OnlineClient, PolkadotConfig};
+
+// Generate an interface that we can use from the node's metadata.
+#[subxt::subxt(runtime_metadata_path = "../artifacts/test_metadata.scale")]
+pub mod polkadot {}
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    // Create a new API client, configured to talk to Polkadot nodes.
+    let api = OnlineClient::<PolkadotConfig>::from_url("wss://rpc.polkadot.io:443").await?;
+
+    // Build the query.
+    let storage_query = polkadot::storage().paras().parachains();
+
+    // Fetch the result.
+    let result = api
+        .storage()
+        .at_latest()
+        .await?
+        .fetch(&storage_query)
+        .await?;
+
+    println!("polkadot::storage().paras().parachains(): {result:?}");
+
+    Ok(())
+}