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add state_getKeysPaged (#4718)

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* add storage_getNextKey

* RPC storage_getKeysPages

* respect count

* use iterator

* improve

* add tests

* improve

* add doc comments

* Make prefix optional

* update error

* improve
This commit is contained in:
Xiliang Chen
2020-02-04 22:44:40 +13:00
committed by GitHub
parent 900295b020
commit febb6e29b2
6 changed files with 199 additions and 3 deletions
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substrate/client/rpc/src/state/state_light.rs
+10
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@@ -199,6 +199,16 @@ impl<Block, F, B, E, RA> StateBackend<B, E, Block, RA> for LightState<Block, F,
Box::new(result(Err(client_err(ClientError::NotAvailableOnLightClient))))
}
fn storage_keys_paged(
&self,
_block: Option<Block::Hash>,
_prefix: Option<StorageKey>,
_count: u32,
_start_key: Option<StorageKey>,
) -> FutureResult<Vec<StorageKey>> {
Box::new(result(Err(client_err(ClientError::NotAvailableOnLightClient))))
}
fn storage(
&self,
block: Option<Block::Hash>,