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Support unsigned extrinsics. #130

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merged 1 commit into from
Jun 26, 2020
Merged

Support unsigned extrinsics. #130

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27 changes: 22 additions & 5 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -308,10 +308,10 @@ impl<T: Runtime> Client<T> {
.and_then(|module| module.call(C::FUNCTION, call))?)
}

/// Creates an unsigned extrinsic.
/// Creates an payload for an extrinsic.
///
/// If `nonce` is `None` the nonce will be fetched from the chain.
pub async fn create_unsigned<C: Call<T>>(
pub async fn create_payload<C: Call<T>>(
&self,
call: C,
account_id: &<T as System>::AccountId,
Expand All @@ -336,6 +336,23 @@ impl<T: Runtime> Client<T> {
Ok(raw_payload)
}

/// Creates an unsigned extrinsic.
pub async fn create_unsigned<C: Call<T> + Send + Sync>(
&self,
call: C,
account_id: &<T as System>::AccountId,
nonce: Option<T::Index>,
) -> Result<UncheckedExtrinsic<T>, Error>
where
<<T::Extra as SignedExtra<T>>::Extra as SignedExtension>::AdditionalSigned:
Send + Sync,
{
let payload = self.create_payload(call, account_id, nonce).await?;
let (call, _, _) = payload.deconstruct();
let unsigned = UncheckedExtrinsic::<T>::new_unsigned(call);
Ok(unsigned)
}

/// Creates a signed extrinsic.
pub async fn create_signed<C: Call<T> + Send + Sync>(
&self,
Expand All @@ -346,10 +363,10 @@ impl<T: Runtime> Client<T> {
<<T::Extra as SignedExtra<T>>::Extra as SignedExtension>::AdditionalSigned:
Send + Sync,
{
let unsigned = self
.create_unsigned(call, signer.account_id(), signer.nonce())
let payload = self
.create_payload(call, signer.account_id(), signer.nonce())
.await?;
let signed = signer.sign(unsigned).await?;
let signed = signer.sign(payload).await?;
Ok(signed)
}

Expand Down