StateApi<P extends Provider> class

Substrate state API


StateApi(P _provider)


hashCode int
The hash code for this object.
no setterinherited
latestRuntimeMetadata RuntimeMetadata
getter/setter pair
runtimeType Type
A representation of the runtime type of the object.
no setterinherited


call(String method, Uint8List bytes, {BlockHash? at}) Future<Uint8List>
Call a contract at a block's state.
getKeysPaged({required StorageKey key, required int count, StorageKey? startKey, BlockHash? at}) Future<List<StorageKey>>
Returns the keys with prefix with pagination support. Up to count keys will be returned. If startKey is passed, return next keys in storage in lexicographic order.
getMetadata({BlockHash? at}) Future<RuntimeMetadata>
Returns the runtime metadata
getPairs(StorageKey prefix, {BlockHash? at}) Future<List<KeyValue>>
Returns the keys with prefix, leave empty to get all the keys
getReadProof(List<StorageKey> keys, {BlockHash? at}) Future<ReadProof>
Returns proof of storage entries at a specific block's state.
getRuntimeVersion({BlockHash? at}) Future<RuntimeVersion>
Get the runtime version.
getStorage(StorageKey key, {BlockHash? at}) Future<StorageData?>
Returns a storage entry at a specific block's state.
getStorageHash(StorageKey key, {BlockHash? at}) Future<BlockHash?>
Returns the hash of a storage entry at a block's state.
getStorageSize(StorageKey key, {BlockHash? at}) Future<int?>
Returns the size of a storage entry at a block's state.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
queryStorage(List<StorageKey> keys, BlockHash fromBlock, {BlockHash? toBlock}) Future<List<StorageChangeSet>>
Query historical storage entries (by key) starting from a block given as the second parameter.
queryStorageAt(List<StorageKey> keys, {BlockHash? at}) Future<List<StorageChangeSet>>
Query storage entries (by key) starting at block hash given as the second parameter.
subscribeEvents(BlockHash at, dynamic onData(Events)) Future<StreamSubscription<Events>>
subscribeRuntimeVersion(dynamic onData(RuntimeVersion)) Future<StreamSubscription<RuntimeVersion>>
Retrieves the runtime version via subscription
subscribeStorage(List<Uint8List> storageKeys, dynamic onData(StorageChangeSet)) Future<StreamSubscription<StorageChangeSet>>
Subscribes to storage changes for the provided keys
toString() String
A string representation of this object.


operator ==(Object other) bool
The equality operator.