Trait abci::async_api::Info

pub trait Info: Send + Sync {
    fn info<'life0, 'async_trait>(
        &'life0 self,
        info_request: RequestInfo
    ) -> Pin<Box<dyn Future<Output = ResponseInfo> + Send + 'async_trait>>
    where
        'life0: 'async_trait,
        Self: 'async_trait;

    fn echo<'life0, 'async_trait>(
        &'life0 self,
        echo_request: RequestEcho
    ) -> Pin<Box<dyn Future<Output = ResponseEcho> + Send + 'async_trait>>
    where
        'life0: 'async_trait,
        Self: 'async_trait,
    { ... }
    fn set_option<'life0, 'async_trait>(
        &'life0 self,
        _set_option_request: RequestSetOption
    ) -> Pin<Box<dyn Future<Output = ResponseSetOption> + Send + 'async_trait>>
    where
        'life0: 'async_trait,
        Self: 'async_trait,
    { ... }
    fn query<'life0, 'async_trait>(
        &'life0 self,
        _query_request: RequestQuery
    ) -> Pin<Box<dyn Future<Output = ResponseQuery> + Send + 'async_trait>>
    where
        'life0: 'async_trait,
        Self: 'async_trait,
    { ... }
    fn flush<'life0, 'async_trait>(
        &'life0 self,
        _flush_request: RequestFlush
    ) -> Pin<Box<dyn Future<Output = ResponseFlush> + Send + 'async_trait>>
    where
        'life0: 'async_trait,
        Self: 'async_trait,
    { ... }
}

Available on crate feature async-api only.

Trait for initialization and for queries from the user.

Required Methods

fn info<'life0, 'async_trait>(
    &'life0 self,
    info_request: RequestInfo
) -> Pin<Box<dyn Future<Output = ResponseInfo> + Send + 'async_trait>>where
    'life0: 'async_trait,
    Self: 'async_trait,

Return information about the application state.

Crash Recovery

On startup, Tendermint calls the info method to get the latest committed state of the app. The app MUST return information consistent with the last block it successfully completed commit for.

If the app succesfully committed block H but not H+1, then

• last_block_height = H
• last_block_app_hash = <hash returned by Commit for block H>

If the app failed during the commit of block H, then

• last_block_height = H-1
• last_block_app_hash = <hash returned by Commit for block H-1, which is the hash in the header of block H>

Equivalent to

async fn info(&self, info_request: RequestInfo) -> ResponseInfo

Provided Methods

fn echo<'life0, 'async_trait>(
    &'life0 self,
    echo_request: RequestEcho
) -> Pin<Box<dyn Future<Output = ResponseEcho> + Send + 'async_trait>>where
    'life0: 'async_trait,
    Self: 'async_trait,

Echo a string to test abci client/server implementation.

Equivalent to

async fn echo(&self, echo_request: RequestEcho) -> ResponseEcho

fn set_option<'life0, 'async_trait>(
    &'life0 self,
    _set_option_request: RequestSetOption
) -> Pin<Box<dyn Future<Output = ResponseSetOption> + Send + 'async_trait>>where
    'life0: 'async_trait,
    Self: 'async_trait,

Set non-consensus critical application specific options.

Equivalent to

async fn set_option(&self, set_option_request: RequestSetOption) -> ResponseSetOption

fn query<'life0, 'async_trait>(
    &'life0 self,
    _query_request: RequestQuery
) -> Pin<Box<dyn Future<Output = ResponseQuery> + Send + 'async_trait>>where
    'life0: 'async_trait,
    Self: 'async_trait,

Query for data from the application at current or past height.

Equivalent to

async fn query(&self, query_request: RequestQuery) -> ResponseQuery

fn flush<'life0, 'async_trait>(
    &'life0 self,
    _flush_request: RequestFlush
) -> Pin<Box<dyn Future<Output = ResponseFlush> + Send + 'async_trait>>where
    'life0: 'async_trait,
    Self: 'async_trait,

Signals that messages queued on the client should be flushed to the server.

Equivalent to

async fn flush(&self, flush_request: RequestFlush) -> ResponseFlush

Implementors