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get_storage_hash.go
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get_storage_hash.go
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// Go Substrate RPC Client (GSRPC) provides APIs and types around Polkadot and any Substrate-based chain RPC calls
//
// Copyright 2019 Centrifuge GmbH
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package state
import (
"github.com/puneetjindal1997/go-substrate-rpc-client/v4/client"
"github.com/puneetjindal1997/go-substrate-rpc-client/v4/types"
)
// GetStorageHash retreives the storage hash for the given key
func (s *state) GetStorageHash(key types.StorageKey, blockHash types.Hash) (types.Hash, error) {
return s.getStorageHash(key, &blockHash)
}
// GetStorageHashLatest retreives the storage hash for the given key for the latest block height
func (s *state) GetStorageHashLatest(key types.StorageKey) (types.Hash, error) {
return s.getStorageHash(key, nil)
}
func (s *state) getStorageHash(key types.StorageKey, blockHash *types.Hash) (types.Hash, error) {
var res string
err := client.CallWithBlockHash(s.client, &res, "state_getStorageHash", blockHash, key.Hex())
if err != nil {
return types.Hash{}, err
}
return types.NewHashFromHexString(res)
}