Struct ic_utils::call::AndThenAsyncCaller

pub struct AndThenAsyncCaller<Out: for<'de> ArgumentDecoder<'de> + Send, Out2: for<'de> ArgumentDecoder<'de> + Send, Inner: AsyncCall<Out> + Send, R: Future<Output = Result<Out2, AgentError>> + Send, AndThen: Send + Fn(Out) -> R> { /* private fields */ }

An AsyncCall that applies a transform function to the result of the call. Because of constraints on the type system in Rust, both the input and output to the function must be deserializable.

Implementations

impl<Out, Out2, Inner, R, AndThen> AndThenAsyncCaller<Out, Out2, Inner, R, AndThen>

where Out: for<'de> ArgumentDecoder<'de> + Send, Out2: for<'de> ArgumentDecoder<'de> + Send, Inner: AsyncCall<Out> + Send, R: Future<Output = Result<Out2, AgentError>> + Send, AndThen: Send + Fn(Out) -> R,

pub fn new(inner: Inner, and_then: AndThen) -> Self

Equivalent to inner.and_then(and_then).

pub async fn call(self) -> Result<RequestId, AgentError>

See AsyncCall::call.

pub async fn call_and_wait(self) -> Result<Out2, AgentError>

See AsyncCall::call_and_wait.

pub fn and_then<Out3, R2, AndThen2>( self, and_then: AndThen2 ) -> AndThenAsyncCaller<Out2, Out3, Self, R2, AndThen2>

where Out3: for<'de> ArgumentDecoder<'de> + Send, R2: Future<Output = Result<Out3, AgentError>> + Send, AndThen2: Send + Fn(Out2) -> R2,

See AsyncCall::and_then.

pub fn map<Out3, Map>( self, map: Map ) -> MappedAsyncCaller<Out2, Out3, Self, Map>

where Out3: for<'de> ArgumentDecoder<'de> + Send, Map: Send + Fn(Out2) -> Out3,

See AsyncCall::map.

Trait Implementations

impl<Out, Out2, Inner, R, AndThen> AsyncCall<Out2> for AndThenAsyncCaller<Out, Out2, Inner, R, AndThen>

where Out: for<'de> ArgumentDecoder<'de> + Send, Out2: for<'de> ArgumentDecoder<'de> + Send, Inner: AsyncCall<Out> + Send, R: Future<Output = Result<Out2, AgentError>> + Send, AndThen: Send + Fn(Out) -> R,

fn call<'async_trait>( self ) -> Pin<Box<dyn Future<Output = Result<RequestId, AgentError>> + Send + 'async_trait>>

where Self: 'async_trait,

Execute the call, but returns the RequestId. Waiting on the request Id must be managed by the caller using the Agent directly.

fn call_and_wait<'async_trait>( self ) -> Pin<Box<dyn Future<Output = Result<Out2, AgentError>> + Send + 'async_trait>>

where Self: 'async_trait,

Execute the call, and wait for an answer using an exponential-backoff strategy. The return type is encoded in the trait.

fn and_then<Out2, R, AndThen>( self, and_then: AndThen ) -> AndThenAsyncCaller<Out, Out2, Self, R, AndThen>

where Self: Sized + Send, Out2: for<'de> ArgumentDecoder<'de> + Send, R: Future<Output = Result<Out2, AgentError>> + Send, AndThen: Send + Fn(Out) -> R,

Apply a transformation function after the call has been successful. The transformation is applied with the result.

fn map<Out2, Map>(self, map: Map) -> MappedAsyncCaller<Out, Out2, Self, Map>

where Self: Sized + Send, Out2: for<'de> ArgumentDecoder<'de> + Send, Map: Send + Fn(Out) -> Out2,

Apply a transformation function after the call has been successful. Equivalent to .and_then(|x| async { map(x) }).

impl<Out, Out2, Inner, R, AndThen> Debug for AndThenAsyncCaller<Out, Out2, Inner, R, AndThen>

where Out: for<'de> ArgumentDecoder<'de> + Send, Out2: for<'de> ArgumentDecoder<'de> + Send, Inner: AsyncCall<Out> + Send + Debug, R: Future<Output = Result<Out2, AgentError>> + Send, AndThen: Send + Fn(Out) -> R + Debug,

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

Formats the value using the given formatter.