The core protocol of WoopChain
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woop/internal/hmyapi/apiv1/backend.go

91 lines
4.4 KiB

package apiv1
import (
"context"
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/rpc"
"github.com/harmony-one/harmony/block"
"github.com/harmony-one/harmony/consensus/quorum"
"github.com/harmony-one/harmony/core"
"github.com/harmony-one/harmony/core/state"
"github.com/harmony-one/harmony/core/types"
"github.com/harmony-one/harmony/core/vm"
commonRPC "github.com/harmony-one/harmony/internal/hmyapi/common"
"github.com/harmony-one/harmony/internal/params"
"github.com/harmony-one/harmony/shard"
"github.com/harmony-one/harmony/shard/committee"
"github.com/harmony-one/harmony/staking/network"
staking "github.com/harmony-one/harmony/staking/types"
)
// Backend interface provides the common API services (that are provided by
// both full and light clients) with access to necessary functions.
// implementations:
// * hmy/api_backend.go
type Backend interface {
NetVersion() uint64
ProtocolVersion() int
ChainDb() ethdb.Database
EventMux() *event.TypeMux
RPCGasCap() *big.Int // global gas cap for hmy_call over rpc: DoS protection
HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*block.Header, error)
BlockByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Block, error)
StateAndHeaderByNumber(
ctx context.Context, blockNr rpc.BlockNumber,
) (*state.DB, *block.Header, error)
GetBlock(ctx context.Context, blockHash common.Hash) (*types.Block, error)
GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error)
GetEVM(ctx context.Context, msg core.Message, state *state.DB, header *block.Header) (*vm.EVM, func() error, error)
SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription
SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription
SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription
// TxPool API
SendTx(ctx context.Context, signedTx *types.Transaction) error
// GetTransaction(ctx context.Context, txHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error)
GetPoolTransactions() (types.PoolTransactions, error)
GetPoolTransaction(txHash common.Hash) types.PoolTransaction
GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error)
// Get account nonce
GetAccountNonce(ctx context.Context, address common.Address, blockNr rpc.BlockNumber) (uint64, error)
// Stats() (pending int, queued int)
// TxPoolContent() (map[common.Address]types.Transactions, map[common.Address]types.Transactions)
SubscribeNewTxsEvent(chan<- core.NewTxsEvent) event.Subscription
ChainConfig() *params.ChainConfig
CurrentBlock() *types.Block
// Get balance
GetBalance(ctx context.Context, address common.Address, blockNr rpc.BlockNumber) (*big.Int, error)
// Get validators for a particular epoch
GetValidators(epoch *big.Int) (*shard.Committee, error)
GetShardID() uint32
GetTransactionsHistory(address, txType, order string) ([]common.Hash, error)
GetStakingTransactionsHistory(address, txType, order string) ([]common.Hash, error)
GetTransactionsCount(address, txType string) (uint64, error)
GetStakingTransactionsCount(address, txType string) (uint64, error)
// retrieve the blockHash using txID and add blockHash to CxPool for resending
ResendCx(ctx context.Context, txID common.Hash) (uint64, bool)
IsLeader() bool
SendStakingTx(ctx context.Context, newStakingTx *staking.StakingTransaction) error
GetElectedValidatorAddresses() []common.Address
GetAllValidatorAddresses() []common.Address
GetValidatorInformation(addr common.Address, block *types.Block) (*staking.ValidatorRPCEnchanced, error)
GetDelegationsByValidator(validator common.Address) []*staking.Delegation
GetDelegationsByDelegator(delegator common.Address) ([]common.Address, []*staking.Delegation)
GetValidatorSelfDelegation(addr common.Address) *big.Int
GetShardState() (*shard.State, error)
GetCurrentStakingErrorSink() []staking.RPCTransactionError
GetCurrentTransactionErrorSink() []types.RPCTransactionError
GetMedianRawStakeSnapshot() (*committee.CompletedEPoSRound, error)
GetPendingCXReceipts() []*types.CXReceiptsProof
GetCurrentUtilityMetrics() (*network.UtilityMetric, error)
GetSuperCommittees() (*quorum.Transition, error)
GetTotalStakingSnapshot() *big.Int
GetCurrentBadBlocks() []core.BadBlock
GetLastCrossLinks() ([]*types.CrossLink, error)
GetLatestChainHeaders() *block.HeaderPair
GetNodeMetadata() commonRPC.NodeMetadata
}