blockbook/bchain/coins/grs/grsrpc.go

105 lines
2.5 KiB
Go

package grs
import (
"encoding/json"
"github.com/golang/glog"
"github.com/juju/errors"
"spacecruft.org/spacecruft/blockbook/bchain"
"spacecruft.org/spacecruft/blockbook/bchain/coins/btc"
)
// GroestlcoinRPC is an interface to JSON-RPC service
type GroestlcoinRPC struct {
*btc.BitcoinRPC
}
// NewGroestlcoinRPC returns new GroestlcoinRPC instance
func NewGroestlcoinRPC(config json.RawMessage, pushHandler func(bchain.NotificationType)) (bchain.BlockChain, error) {
b, err := btc.NewBitcoinRPC(config, pushHandler)
if err != nil {
return nil, err
}
g := &GroestlcoinRPC{
BitcoinRPC: b.(*btc.BitcoinRPC),
}
g.RPCMarshaler = btc.JSONMarshalerV1{}
return g, nil
}
// Initialize initializes GroestlcoinRPC instance.
func (g *GroestlcoinRPC) Initialize() error {
ci, err := g.GetChainInfo()
if err != nil {
return err
}
chainName := ci.Chain
params := GetChainParams(chainName)
g.Parser = NewGroestlcoinParser(params, g.ChainConfig)
// parameters for getInfo request
if params.Net == MainnetMagic {
g.Testnet = false
g.Network = "livenet"
} else {
g.Testnet = true
g.Network = "testnet"
}
glog.Info("rpc: block chain ", params.Name)
return nil
}
// GetBlock returns block with given hash.
func (g *GroestlcoinRPC) GetBlock(hash string, height uint32) (*bchain.Block, error) {
var err error
if hash == "" && height > 0 {
hash, err = g.GetBlockHash(height)
if err != nil {
return nil, err
}
}
glog.V(1).Info("rpc: getblock (verbosity=1) ", hash)
res := btc.ResGetBlockThin{}
req := btc.CmdGetBlock{Method: "getblock"}
req.Params.BlockHash = hash
req.Params.Verbosity = 1
err = g.Call(&req, &res)
if err != nil {
return nil, errors.Annotatef(err, "hash %v", hash)
}
if res.Error != nil {
return nil, errors.Annotatef(res.Error, "hash %v", hash)
}
txs := make([]bchain.Tx, 0, len(res.Result.Txids))
for _, txid := range res.Result.Txids {
tx, err := g.GetTransaction(txid)
if err != nil {
if err == bchain.ErrTxNotFound {
glog.Errorf("rpc: getblock: skipping transanction in block %s due error: %s", hash, err)
continue
}
return nil, err
}
txs = append(txs, *tx)
}
block := &bchain.Block{
BlockHeader: res.Result.BlockHeader,
Txs: txs,
}
return block, nil
}
// GetTransactionForMempool returns a transaction by the transaction ID.
// It could be optimized for mempool, i.e. without block time and confirmations
func (g *GroestlcoinRPC) GetTransactionForMempool(txid string) (*bchain.Tx, error) {
return g.GetTransaction(txid)
}