pub struct Signer<T: SigningTypes, C: AppCrypto<T::Public, T::Signature>, X = ForAny> { /* private fields */ }
Expand description

Provides an implementation for signing transaction payloads.

Keys used for signing are defined when instantiating the signer object. Signing can be done using:

  • All supported keys in the keystore
  • Any of the supported keys in the keystore
  • An intersection of in-keystore keys and the list of provided keys

The signer is then able to:

  • Submit a unsigned transaction with a signed payload
  • Submit a signed transaction

Implementations§

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impl<T: SigningTypes, C: AppCrypto<T::Public, T::Signature>, X> Signer<T, C, X>

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pub fn all_accounts() -> Signer<T, C, ForAll>

Use all available keys for signing.

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pub fn any_account() -> Signer<T, C, ForAny>

Use any of the available keys for signing.

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pub fn with_filter(self, accounts: Vec<T::Public>) -> Self

Use provided accounts for signing.

Note that not all keys will be necessarily used. The provided vector of accounts will be intersected with the supported keys in the keystore and the resulting list will be used for signing.

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pub fn can_sign(&self) -> bool

Check if there are any keys that could be used for signing.

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pub fn accounts_from_keys<'a>( &'a self ) -> Box<dyn Iterator<Item = Account<T>> + 'a>

Return a vector of the intersection between all available accounts and the provided accounts in with_filter. If no accounts are provided, use all accounts by default.

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pub fn keystore_accounts() -> impl Iterator<Item = Account<T>>

Return all available accounts in keystore.

Trait Implementations§

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impl<T, C, X> Debug for Signer<T, C, X>
where T: Debug + SigningTypes, C: Debug + AppCrypto<T::Public, T::Signature>, X: Debug,

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fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<T: SigningTypes, C: AppCrypto<T::Public, T::Signature>, X> Default for Signer<T, C, X>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<T: CreateSignedTransaction<LocalCall> + SigningTypes, C: AppCrypto<T::Public, T::Signature>, LocalCall> SendSignedTransaction<T, C, LocalCall> for Signer<T, C, ForAny>

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type Result = Option<(Account<T>, Result<(), ()>)>

A submission result. Read more
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fn send_signed_transaction( &self, f: impl Fn(&Account<T>) -> LocalCall ) -> Self::Result

Submit a signed transaction to the local pool. Read more
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fn send_single_signed_transaction( &self, account: &Account<T>, call: LocalCall ) -> Option<Result<(), ()>>

Wraps the call into transaction, signs using given account and submits to the pool.
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impl<T: SigningTypes + CreateSignedTransaction<LocalCall>, C: AppCrypto<T::Public, T::Signature>, LocalCall> SendSignedTransaction<T, C, LocalCall> for Signer<T, C, ForAll>

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type Result = Vec<(Account<T>, Result<(), ()>)>

A submission result. Read more
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fn send_signed_transaction( &self, f: impl Fn(&Account<T>) -> LocalCall ) -> Self::Result

Submit a signed transaction to the local pool. Read more
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fn send_single_signed_transaction( &self, account: &Account<T>, call: LocalCall ) -> Option<Result<(), ()>>

Wraps the call into transaction, signs using given account and submits to the pool.
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impl<T: SigningTypes + SendTransactionTypes<LocalCall>, C: AppCrypto<T::Public, T::Signature>, LocalCall> SendUnsignedTransaction<T, LocalCall> for Signer<T, C, ForAny>

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type Result = Option<(Account<T>, Result<(), ()>)>

A submission result. Read more
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fn send_unsigned_transaction<TPayload, F>( &self, f: F, f2: impl Fn(TPayload, T::Signature) -> LocalCall ) -> Self::Result
where F: Fn(&Account<T>) -> TPayload, TPayload: SignedPayload<T>,

Send an unsigned transaction with a signed payload. Read more
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fn submit_unsigned_transaction(&self, call: LocalCall) -> Option<Result<(), ()>>

Submits an unsigned call to the transaction pool.
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impl<T: SigningTypes + SendTransactionTypes<LocalCall>, C: AppCrypto<T::Public, T::Signature>, LocalCall> SendUnsignedTransaction<T, LocalCall> for Signer<T, C, ForAll>

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type Result = Vec<(Account<T>, Result<(), ()>)>

A submission result. Read more
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fn send_unsigned_transaction<TPayload, F>( &self, f: F, f2: impl Fn(TPayload, T::Signature) -> LocalCall ) -> Self::Result
where F: Fn(&Account<T>) -> TPayload, TPayload: SignedPayload<T>,

Send an unsigned transaction with a signed payload. Read more
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fn submit_unsigned_transaction(&self, call: LocalCall) -> Option<Result<(), ()>>

Submits an unsigned call to the transaction pool.
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impl<T: SigningTypes, C: AppCrypto<T::Public, T::Signature>> SignMessage<T> for Signer<T, C, ForAny>

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type SignatureData = Option<(Account<T>, <T as SigningTypes>::Signature)>

A signature data. Read more
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fn sign_message(&self, message: &[u8]) -> Self::SignatureData

Sign a message. Read more
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fn sign<TPayload, F>(&self, f: F) -> Self::SignatureData
where F: Fn(&Account<T>) -> TPayload, TPayload: SignedPayload<T>,

Construct and sign given payload. Read more
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impl<T: SigningTypes, C: AppCrypto<T::Public, T::Signature>> SignMessage<T> for Signer<T, C, ForAll>

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type SignatureData = Vec<(Account<T>, <T as SigningTypes>::Signature)>

A signature data. Read more
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fn sign_message(&self, message: &[u8]) -> Self::SignatureData

Sign a message. Read more
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fn sign<TPayload, F>(&self, f: F) -> Self::SignatureData
where F: Fn(&Account<T>) -> TPayload, TPayload: SignedPayload<T>,

Construct and sign given payload. Read more

Auto Trait Implementations§

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impl<T, C, X> RefUnwindSafe for Signer<T, C, X>

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impl<T, C, X> Send for Signer<T, C, X>
where C: Send, X: Send, <T as SigningTypes>::Public: Send,

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impl<T, C, X> Sync for Signer<T, C, X>
where C: Sync, X: Sync, <T as SigningTypes>::Public: Sync,

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impl<T, C, X> Unpin for Signer<T, C, X>
where C: Unpin, X: Unpin, <T as SigningTypes>::Public: Unpin,

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impl<T, C, X> UnwindSafe for Signer<T, C, X>

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where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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