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Expose the SCALE encoded call data of an extrinsic (#573)

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* Expose SCALE encoded call data of an extrinsic

* Update subxt/src/client.rs

Co-authored-by: Alexandru Vasile <60601340+lexnv@users.noreply.github.com>

Co-authored-by: Alexandru Vasile <60601340+lexnv@users.noreply.github.com>
This commit is contained in:
James Wilson
2022-06-22 11:30:06 +01:00
committed by GitHub
parent 1e8d0956cc
commit 6d7a6c9388
1 changed files with 13 additions and 10 deletions
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subxt/src/client.rs
+13 -10
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@@ -354,6 +354,18 @@ where
.await
}
/// Return the SCALE encoded bytes representing the call data of the transaction.
pub fn call_data(&self) -> Result<Vec<u8>, BasicError> {
let mut bytes = Vec::new();
let locked_metadata = self.client.metadata();
let metadata = locked_metadata.read();
let pallet = metadata.pallet(C::PALLET)?;
bytes.push(pallet.index());
bytes.push(pallet.call_index::<C>()?);
self.call.encode_to(&mut bytes);
Ok(bytes)
}
/// Creates a returns a raw signed extrinsic, without submitting it.
pub async fn create_signed(
&self,
@@ -371,16 +383,7 @@ where
};
// 2. SCALE encode call data to bytes (pallet u8, call u8, call params).
let call_data = {
let mut bytes = Vec::new();
let locked_metadata = self.client.metadata();
let metadata = locked_metadata.read();
let pallet = metadata.pallet(C::PALLET)?;
bytes.push(pallet.index());
bytes.push(pallet.call_index::<C>()?);
self.call.encode_to(&mut bytes);
Encoded(bytes)
};
let call_data = Encoded(self.call_data()?);
// 3. Construct our custom additional/extra params.
let additional_and_extra_params = {