Merge branch 'master' into tadeohepperle-static-decoding-of-signed-extensions

subxt/examples/blocks_subscribing.rs

@@ -48,6 +48,16 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
                 println!("        {pallet_name}_{event_name}");
                 println!("          {}", event_values);
             }
+
+            println!("      Signed Extensions:");
+            if let Some(signed_extensions) = ext.signed_extensions() {
+                for signed_extension in signed_extensions.iter() {
+                    let signed_extension = signed_extension?;
+                    let name = signed_extension.name();
+                    let value = signed_extension.value()?.to_string();
+                    println!("        {name}: {value}");
+                }
+            }
         }
     }
 

subxt/src/blocks/extrinsic_types.rs

@@ -349,11 +349,7 @@ where
             .map(|e| &self.bytes[e.address_start_idx..e.address_end_idx])
     }
 
-    /// Return only the bytes of the signature for this signed extrinsic.
-    ///
-    /// # Note
-    ///
-    /// Returns `None` if the extrinsic is not signed.
+    /// Returns Some(signature_bytes) if the extrinsic was signed otherwise None is returned.
     pub fn signature_bytes(&self) -> Option<&[u8]> {
         self.signed_details
             .as_ref()
@@ -696,6 +692,8 @@ impl<'a, T: Config> ExtrinsicSignedExtensions<'a, T> {
     }
 
     /// The nonce of the account that submitted the extrinsic, extracted from the CheckNonce signed extension.
+    ///
+    /// Returns `None` if `nonce` was not found or decoding failed.
     pub fn nonce(&self) -> Option<u64> {
         let nonce = self
             .iter()
@@ -712,7 +710,7 @@ impl<'a, T: Config> ExtrinsicSignedExtension<'a, T> {
     }
 
     /// The name of the signed extension.
-    pub fn name(&self) -> &str {
+    pub fn name(&self) -> &'a str {
         self.identifier
     }
 

subxt/src/blocks/mod.rs

@@ -13,7 +13,10 @@ pub use crate::backend::BlockRef;
 
 pub use block_types::Block;
 pub use blocks_client::BlocksClient;
-pub use extrinsic_types::{ExtrinsicDetails, ExtrinsicEvents, Extrinsics, StaticExtrinsic};
+pub use extrinsic_types::{
+    ExtrinsicDetails, ExtrinsicEvents, ExtrinsicSignedExtension, ExtrinsicSignedExtensions,
+    Extrinsics, StaticExtrinsic,
+};
 
 // We get account nonce info in tx_client, too, so re-use the logic:
 pub(crate) use block_types::get_account_nonce;

subxt/src/lib.rs

@@ -309,7 +309,7 @@ pub mod ext {
 /// the metadata first. This is **not recommended** in production code, since the unstable metadata a node is providing is likely
 /// to be incompatible with Subxt.
 ///
-/// ```rust,no_run
+/// ```rust,ignore
 /// #[subxt::subxt(
 ///     runtime_metadata_url = "wss://rpc.polkadot.io:443",
 ///     unstable_metadata