account: add ERC721Transfers()

Author: 7AC

account.go

@@ -107,6 +107,30 @@ func (c *Client) ERC20Transfers(contractAddress, address *string, startBlock *in
 	return
 }
 
+// ERC721Transfers get a list of "erc721 - token transfer events" by
+// contract address and/or from/to address.
+//
+// leave undesired condition to nil.
+func (c *Client) ERC721Transfers(contractAddress, address *string, startBlock *int, endBlock *int, page int, offset int, desc bool) (txs []ERC721Transfer, err error) {
+	param := M{
+		"page":   page,
+		"offset": offset,
+	}
+	compose(param, "contractaddress", contractAddress)
+	compose(param, "address", address)
+	compose(param, "startblock", startBlock)
+	compose(param, "endblock", endBlock)
+
+	if desc {
+		param["sort"] = "desc"
+	} else {
+		param["sort"] = "asc"
+	}
+
+	err = c.call("account", "tokennfttx", param, &txs)
+	return
+}
+
 // BlocksMinedByAddress gets list of blocks mined by address
 func (c *Client) BlocksMinedByAddress(address string, page int, offset int) (mined []MinedBlock, err error) {
 	param := M{

response.go

@@ -88,6 +88,29 @@ type ERC20Transfer struct {
 	Confirmations     int     `json:"confirmations,string"`
 }
 
+// ERC721Transfer holds info from ERC721 token transfer event query
+type ERC721Transfer struct {
+	BlockNumber       int     `json:"blockNumber,string"`
+	TimeStamp         Time    `json:"timeStamp"`
+	Hash              string  `json:"hash"`
+	Nonce             int     `json:"nonce,string"`
+	BlockHash         string  `json:"blockHash"`
+	From              string  `json:"from"`
+	ContractAddress   string  `json:"contractAddress"`
+	To                string  `json:"to"`
+	TokenID           *BigInt `json:"tokenID"`
+	TokenName         string  `json:"tokenName"`
+	TokenSymbol       string  `json:"tokenSymbol"`
+	TokenDecimal      uint8   `json:"tokenDecimal,string"`
+	TransactionIndex  int     `json:"transactionIndex,string"`
+	Gas               int     `json:"gas,string"`
+	GasPrice          *BigInt `json:"gasPrice"`
+	GasUsed           int     `json:"gasUsed,string"`
+	CumulativeGasUsed int     `json:"cumulativeGasUsed,string"`
+	Input             string  `json:"input"`
+	Confirmations     int     `json:"confirmations,string"`
+}
+
 // MinedBlock holds info from query for mined block by address
 type MinedBlock struct {
 	BlockNumber int     `json:"blockNumber,string"`