sp_governed_map

Trait GovernedMapDataSource

Source 
pub trait GovernedMapDataSource {
    // Required methods
    fn get_state_at_block<'life0, 'async_trait>(
        &'life0 self,
        mc_block: McBlockHash,
        main_chain_scripts: MainChainScriptsV1,
    ) -> Pin<Box<dyn Future<Output = Result<BTreeMap<String, ByteString>, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn get_mapping_changes<'life0, 'async_trait>(
        &'life0 self,
        since_mc_block: Option<McBlockHash>,
        up_to_mc_block: McBlockHash,
        main_chain_scripts: MainChainScriptsV1,
    ) -> Pin<Box<dyn Future<Output = Result<Vec<(String, Option<ByteString>)>, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}
Expand description

Cardano observability data source API used by GovernedMapInherentDataProvider.

Required Methods§

Source

fn get_state_at_block<'life0, 'async_trait>( &'life0 self, mc_block: McBlockHash, main_chain_scripts: MainChainScriptsV1, ) -> Pin<Box<dyn Future<Output = Result<BTreeMap<String, ByteString>, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns all key-value mappings stored in the Governed Map on Cardano after execution of mc_block.

Source

fn get_mapping_changes<'life0, 'async_trait>( &'life0 self, since_mc_block: Option<McBlockHash>, up_to_mc_block: McBlockHash, main_chain_scripts: MainChainScriptsV1, ) -> Pin<Box<dyn Future<Output = Result<Vec<(String, Option<ByteString>)>, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Queries all changes that occurred in the mappings of the Governed Map on Cardano in the given range of blocks.

§Arguments:
  • since_mc_block: lower bound (exclusive). If None, the data source should return all changes since the genesis block.
  • up_to_block: upper bound (inclusive).
§Return value:

Items in the returned vector should be key-value pairs representing changes to the Governed Map. Inserts and updates should be represented as a Some containing the new value, while deletions should be indicated by a None. The vector should be ordered from the oldest change to the newest.

Implementors§