blockbook/bchain/coins/monetaryunit/monetaryunitrpc.go

package monetaryunit

import (
	"blockbook/bchain"
	"blockbook/bchain/coins/btc"
	"encoding/json"

	"github.com/golang/glog"
)

// MonetaryUnitRPC is an interface to JSON-RPC bitcoind service.
type MonetaryUnitRPC struct {
	*btc.BitcoinRPC
}

// NewMonetaryUnitRPC returns new MonetaryUnitRPC instance.
func NewMonetaryUnitRPC(config json.RawMessage, pushHandler func(bchain.NotificationType)) (bchain.BlockChain, error) {
	b, err := btc.NewBitcoinRPC(config, pushHandler)
	if err != nil {
		return nil, err
	}

	s := &MonetaryUnitRPC{
		b.(*btc.BitcoinRPC),
	}
	s.RPCMarshaler = btc.JSONMarshalerV1{}
	s.ChainConfig.SupportsEstimateFee = true
	s.ChainConfig.SupportsEstimateSmartFee = false

	return s, nil
}

// Initialize initializes MonetaryUnitRPC instance.
func (b *MonetaryUnitRPC) Initialize() error {
	ci, err := b.GetChainInfo()
	if err != nil {
		return err
	}
	chainName := ci.Chain

	glog.Info("Chain name ", chainName)
	params := GetChainParams(chainName)

	// always create parser
	b.Parser = NewMonetaryUnitParser(params, b.ChainConfig)

	// parameters for getInfo request
	if params.Net == MainnetMagic {
		b.Testnet = false
		b.Network = "livenet"
	} else {
		b.Testnet = true
		b.Network = "testnet"
	}

	glog.Info("rpc: block chain ", params.Name)

	return nil
}

// Get Block
func (b *MonetaryUnitRPC) GetBlock(hash string, height uint32) (*bchain.Block, error) {

        var err error
        if hash == "" && height > 0 {
                hash, err = b.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 = b.Call(&req, &res)

        txs := make([]bchain.Tx, 0, len(res.Result.Txids))
        for _, txid := range res.Result.Txids {
                tx, err := b.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
}