Fixed TxRawResult/Vin structure and added GetBlockCmd verbose flags

Changed TxRawResult to omitempty block info for mempool tx as well as
moved Txid to Vin.TxId from Vin.ScriptSig.Txid (both match bitcoind
output)

Added support for new bitcoind [verbose=true] and added non-standard
optional verboseTx to return TxRawResults intead Txids

jsonapi.go

@@ -47,13 +47,15 @@ type InfoResult struct {
 
 // BlockResult models the data from the getblock command.
 type BlockResult struct {
+	Hex           string        `json:"hex,omitempty"`
 	Hash          string        `json:"hash"`
 	Confirmations uint64        `json:"confirmations"`
 	Size          int           `json:"size"`
 	Height        int64         `json:"height"`
 	Version       uint32        `json:"version"`
 	MerkleRoot    string        `json:"merkleroot"`
-	Tx            []string `json:"tx"`
+	Tx            []string      `json:"tx,omitempty"`
+	RawTx         []TxRawResult `json:"rawtx,omitempty"`
 	Time          int64         `json:"time"`
 	Nonce         uint32        `json:"nonce"`
 	Bits          string        `json:"bits"`
@@ -70,10 +72,10 @@ type TxRawResult struct {
 	LockTime      uint32 `json:"locktime"`
 	Vin           []Vin  `json:"vin"`
 	Vout          []Vout `json:"vout"`
-	BlockHash     string `json:"blockhash"`
+	BlockHash     string `json:"blockhash,omitempty"`
-	Confirmations uint64 `json:"confirmations"`
+	Confirmations uint64 `json:"confirmations,omitempty"`
-	Time          int64  `json:"time"`
+	Time          int64  `json:"time,omitempty"`
-	Blocktime     int64  `json:"blocktime"`
+	Blocktime     int64  `json:"blocktime,omitempty"`
 }
 
 // TxRawDecodeResult models the data from the decoderawtransaction command.
@@ -89,9 +91,9 @@ type TxRawDecodeResult struct {
 // getrawtransaction and decoderawtransaction use the same structure.
 type Vin struct {
 	Coinbase  string `json:"coinbase,omitempty"`
+	Txid      string `json:"txid,omitempty"`
 	Vout      int    `json:"vout,omitempty"`
 	ScriptSig struct {
-		Txid string `json:"txid"`
 		Asm string `json:"asm"`
 		Hex string `json:"hex"`
 	} `json:"scriptSig,omitempty"`

jsoncmd.go

@@ -1707,16 +1707,38 @@ func (cmd *GetBestBlockHashCmd) UnmarshalJSON(b []byte) error {
 type GetBlockCmd struct {
 	id        interface{}
 	Hash      string
+	Verbose   bool
+	VerboseTx bool
 }
 
 // Enforce that GetBlockCmd satisifies the Cmd interface.
 var _ Cmd = &GetBlockCmd{}
 
 // NewGetBlockCmd creates a new GetBlockCmd.
-func NewGetBlockCmd(id interface{}, hash string) (*GetBlockCmd, error) {
+func NewGetBlockCmd(id interface{}, hash string, optArgs ...bool) (*GetBlockCmd, error) {
+	// default verbose is set to true to match old behavior
+	verbose, verboseTx := true, false
+
+	optArgsLen := len(optArgs)
+	if optArgsLen > 0 {
+		if optArgsLen > 2 {
+			return nil, ErrTooManyOptArgs
+		}
+		verbose = optArgs[0]
+		if optArgsLen > 1 {
+			verboseTx = optArgs[1]
+
+			if !verbose && verboseTx {
+				return nil, ErrInvalidParams
+			}
+		}
+	}
+
 	return &GetBlockCmd{
 		id:        id,
 		Hash:      hash,
+		Verbose:   verbose,
+		VerboseTx: verboseTx,
 	}, nil
 }
 
@@ -1734,14 +1756,28 @@ func (cmd *GetBlockCmd) Method() string {
 func (cmd *GetBlockCmd) MarshalJSON() ([]byte, error) {
 
 	// Fill and marshal a RawCmd.
-	return json.Marshal(RawCmd{
+	raw := RawCmd{
 		Jsonrpc: "1.0",
 		Method:  "getblock",
 		Id:      cmd.id,
 		Params: []interface{}{
 			cmd.Hash,
 		},
-	})
+	}
+
+	if !cmd.Verbose {
+		// set optional verbose argument to false
+		raw.Params = append(raw.Params, false)
+	} else {
+		if cmd.VerboseTx {
+			// set optional verbose argument to true
+			raw.Params = append(raw.Params, true)
+			// set optional verboseTx argument to true
+			raw.Params = append(raw.Params, true)
+		}
+	}
+
+	return json.Marshal(raw)
 }
 
 // UnmarshalJSON unmarshals the JSON encoding of cmd into cmd.  Part of
@@ -1753,15 +1789,34 @@ func (cmd *GetBlockCmd) UnmarshalJSON(b []byte) error {
 		return err
 	}
 
-	if len(r.Params) != 1 {
+	if len(r.Params) > 3 || len(r.Params) < 1 {
 		return ErrWrongNumberOfParams
 	}
+
 	hash, ok := r.Params[0].(string)
 	if !ok {
 		return errors.New("first parameter hash must be a string")
 	}
 
-	newCmd, err := NewGetBlockCmd(r.Id, hash)
+	optArgs := make([]bool, 0, 1)
+	if len(r.Params) > 1 {
+		verbose, ok := r.Params[1].(bool)
+		if !ok {
+			return errors.New("second optional parameter verbose must be a bool")
+		}
+
+		optArgs = append(optArgs, verbose)
+	}
+	if len(r.Params) == 3 {
+		verboseTx, ok := r.Params[2].(bool)
+		if !ok {
+			return errors.New("third optional parameter verboseTx must be a bool")
+		}
+
+		optArgs = append(optArgs, verboseTx)
+	}
+
+	newCmd, err := NewGetBlockCmd(r.Id, hash, optArgs...)
 	if err != nil {
 		return err
 	}