rpc: introduce proper type for sendrawtransaction, drop useless types

sendrawtransaction just returns a bool, sendtoaddress returns a proper
transaction and that should be the same as the one we have in
TransactionOutputRaw.

pkg/rpc/client/rpc.go

@@ -112,10 +112,10 @@ func (c *Client) Invoke(script string, params []smartcontract.Parameter) (*respo
 // The given hex string needs to be signed with a keypair.
 // When the result of the response object is true, the TX has successfully
 // been broadcasted to the network.
-func (c *Client) sendRawTransaction(rawTX *transaction.Transaction) (*response.Raw, error) {
+func (c *Client) sendRawTransaction(rawTX *transaction.Transaction) (*response.SendRawTx, error) {
 	var (
 		params = request.NewRawParams(hex.EncodeToString(rawTX.Bytes()))
-		resp   = &response.Raw{}
+		resp   = &response.SendRawTx{}
 	)
 	if err := c.performRequest("sendrawtransaction", params, resp); err != nil {
 		return nil, err
@@ -126,7 +126,7 @@ func (c *Client) sendRawTransaction(rawTX *transaction.Transaction) (*response.R
 // SendToAddress sends an amount of specific asset to a given address.
 // This call requires open wallet. (`wif` key in client struct.)
 // If response.Result is `true` then transaction was formed correctly and was written in blockchain.
-func (c *Client) SendToAddress(asset util.Uint256, address string, amount util.Fixed8) (*response.SendToAddress, error) {
+func (c *Client) SendToAddress(asset util.Uint256, address string, amount util.Fixed8) (util.Uint256, error) {
 	var (
 		err      error
 		rawTx    *transaction.Transaction
@@ -137,23 +137,21 @@ func (c *Client) SendToAddress(asset util.Uint256, address string, amount util.F
 			WIF:      c.WIF(),
 			Balancer: c.Balancer(),
 		}
-		respRaw *response.Raw
-		resp    = &response.SendToAddress{}
+		respRaw *response.SendRawTx
+		resp    = util.Uint256{}
 	)
 
 	if rawTx, err = request.CreateRawContractTransaction(txParams); err != nil {
-		return nil, errors.Wrap(err, "failed to create raw transaction for `sendtoaddress`")
+		return resp, errors.Wrap(err, "failed to create raw transaction for `sendtoaddress`")
 	}
 	if respRaw, err = c.sendRawTransaction(rawTx); err != nil {
-		return nil, errors.Wrap(err, "failed to send raw transaction")
+		return resp, errors.Wrap(err, "failed to send raw transaction")
 	}
-	resp.Error = respRaw.Error
-	resp.ID = respRaw.ID
-	resp.JSONRPC = respRaw.JSONRPC
-	resp.Result = &response.Tx{
-		TxID: rawTx.Hash().StringLE(),
+	if respRaw.Result {
+		return rawTx.Hash(), nil
+	} else {
+		return resp, errors.New("failed to send raw transaction")
 	}
-	return resp, nil
 }
 
 // SignAndPushInvocationTx signs and pushes given script as an invocation

pkg/rpc/response/types.go

@@ -3,7 +3,6 @@ package response
 import (
 	"encoding/json"
 
-	"github.com/CityOfZion/neo-go/pkg/core/transaction"
 	"github.com/CityOfZion/neo-go/pkg/rpc/request"
 	"github.com/CityOfZion/neo-go/pkg/rpc/response/result"
 	"github.com/CityOfZion/neo-go/pkg/vm"
@@ -59,7 +58,7 @@ type Raw struct {
 // SendToAddress stores response for the sendtoaddress call.
 type SendToAddress struct {
 	HeaderAndError
-	Result *Tx
+	Result *result.TransactionOutputRaw
 }
 
 // GetTxOut represents result of `gettxout` RPC call.
@@ -71,41 +70,11 @@ type GetTxOut struct {
 // GetRawTx represents verbose output of `getrawtransaction` RPC call.
 type GetRawTx struct {
 	HeaderAndError
-	Result *RawTx `json:"result"`
+	Result *result.TransactionOutputRaw `json:"result"`
 }
 
-// RawTx stores transaction with blockchain metadata to be sent as a response.
-type RawTx struct {
-	Tx
-	BlockHash     string `json:"blockhash"`
-	Confirmations uint   `json:"confirmations"`
-	BlockTime     uint   `json:"blocktime"`
-}
-
-// Tx stores transaction to be sent as a response.
-type Tx struct {
-	TxID       string                  `json:"txid"`
-	Size       int                     `json:"size"`
-	Type       string                  `json:"type"` // todo: convert to TransactionType
-	Version    int                     `json:"version"`
-	Attributes []transaction.Attribute `json:"attributes"`
-	Vins       []Vin                   `json:"vin"`
-	Vouts      []Vout                  `json:"vout"`
-	SysFee     int                     `json:"sys_fee"`
-	NetFee     int                     `json:"net_fee"`
-	Scripts    []transaction.Witness   `json:"scripts"`
-}
-
-// Vin represents JSON-serializable tx input.
-type Vin struct {
-	TxID string `json:"txid"`
-	Vout int    `json:"vout"`
-}
-
-// Vout represents JSON-serializable tx output.
-type Vout struct {
-	N       int    `json:"n"`
-	Asset   string `json:"asset"`
-	Value   int    `json:"value"`
-	Address string `json:"address"`
+// SendRawTx represents a `sendrawtransaction` RPC call response.
+type SendRawTx struct {
+	HeaderAndError
+	Result bool `json:"result"`
 }