Trait sp_api::Metadata

pub trait Metadata<Block: BlockT>: Core<Block> {
    fn metadata(
        &self, 
        __runtime_api_at_param__: &BlockId<Block>
    ) -> Result<OpaqueMetadata, Self::Error> { ... }
    fn metadata_with_context(
        &self, 
        __runtime_api_at_param__: &BlockId<Block>, 
        context: ExecutionContext
    ) -> Result<OpaqueMetadata, Self::Error> { ... }
}

The Metadata api trait that returns metadata for the runtime.

Provided methods

fn metadata(
    &self,
    __runtime_api_at_param__: &BlockId<Block>
) -> Result<OpaqueMetadata, Self::Error>

Returns the metadata of a runtime.

fn metadata_with_context(
    &self,
    __runtime_api_at_param__: &BlockId<Block>,
    context: ExecutionContext
) -> Result<OpaqueMetadata, Self::Error>

Returns the metadata of a runtime.

Trait Implementations

impl<Block: BlockT, __Sr_Api_Error__> RuntimeApiInfo for dyn Metadata<Block, Error = __Sr_Api_Error__>

const ID: [u8; 8]

The identifier of the runtime api.

const VERSION: u32

The version of the runtime api.

Implementors

impl<__SR_API_BLOCK__: BlockT + UnwindSafe + RefUnwindSafe, RuntimeApiImplCall: CallApiAt<__SR_API_BLOCK__> + 'static> Metadata<__SR_API_BLOCK__> for RuntimeApiImpl<__SR_API_BLOCK__, RuntimeApiImplCall> where
    RuntimeApiImplCall::StateBackend: StateBackend<HashFor<__SR_API_BLOCK__>>,
    OpaqueMetadata: UnwindSafe + RefUnwindSafe,
    __SR_API_BLOCK__::Header: UnwindSafe + RefUnwindSafe,