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chain.go
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chain.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.
//go:generate mockery --name Chain --filename chain.go
package chain
import (
"github.com/dcnetio/go-substrate-rpc-client/v4/client"
"github.com/dcnetio/go-substrate-rpc-client/v4/types"
)
type Chain interface {
SubscribeFinalizedHeads() (*FinalizedHeadsSubscription, error)
SubscribeNewHeads() (*NewHeadsSubscription, error)
GetBlockHash(blockNumber uint64) (types.Hash, error)
GetBlockHashLatest() (types.Hash, error)
GetFinalizedHead() (types.Hash, error)
GetBlock(blockHash types.Hash) (*types.SignedBlock, error)
GetBlockLatest() (*types.SignedBlock, error)
GetHeader(blockHash types.Hash) (*types.Header, error)
GetHeaderLatest() (*types.Header, error)
}
// chain exposes methods for retrieval of chain data
type chain struct {
client client.Client
}
// NewChain creates a new chain struct
func NewChain(cl client.Client) Chain {
return &chain{cl}
}