Struct frame_system::offchain::Signer[−][src]

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

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.

Trait Implementations

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

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>

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>

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>

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, ForAll>

type SignatureData = Vec<(Account<T>, T::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, ForAny>

type SignatureData = Option<(Account<T>, T::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

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

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

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

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

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

Blanket Implementations

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impl<T> Any for T where
    T: 'static + ?Sized,

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
    T: ?Sized,

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pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
    T: ?Sized,

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pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CheckedConversion for T

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fn checked_from<T>(t: T) -> Option<Self> where
    Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more

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fn checked_into<T>(self) -> Option<T> where
    Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more

impl<T> Downcast for T where
    T: Any,

pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

pub fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

impl<T> DowncastSync for T where
    T: Any + Send + Sync,

pub fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

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impl<T> From<T> for T

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pub fn from(t: T) -> T

Performs the conversion.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into<U> for T where
    U: From<T>,

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pub fn into(self) -> U

Performs the conversion.

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impl<T> IsType<T> for T

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pub fn from_ref(t: &T) -> &T

Cast reference.

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pub fn into_ref(&self) -> &T

Cast reference.

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pub fn from_mut(t: &mut T) -> &mut T

Cast mutable reference.

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pub fn into_mut(&mut self) -> &mut T

Cast mutable reference.

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impl<T, Outer> IsWrappedBy<Outer> for T where
    T: From<Outer>,
    Outer: AsRef<T> + AsMut<T> + From<T>,

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pub fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

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pub fn from_mut(outer: &mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T> SaturatedConversion for T

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fn saturated_from<T>(t: T) -> Self where
    Self: UniqueSaturatedFrom<T>,

Convert from a value of T into an equivalent instance of Self. Read more

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fn saturated_into<T>(self) -> T where
    Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more

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impl<T, U> TryFrom<U> for T where
    U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

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pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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impl<T, U> TryInto<U> for T where
    U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

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pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

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impl<S, T> UncheckedInto<T> for S where
    T: UncheckedFrom<S>,

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pub fn unchecked_into(self) -> T

The counterpart to unchecked_from.

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impl<T, S> UniqueSaturatedInto<T> for S where
    T: Bounded,
    S: TryInto<T>,

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pub fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>,

pub fn vzip(self) -> V

impl<T> MaybeDebug for T where
    T: Debug,

impl<T> MaybeDebug for T where
    T: Debug,

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impl<T> MaybeRefUnwindSafe for T where
    T: RefUnwindSafe,