move providers into providers subdirectory

providers/bitcoin/address.go

@@ -0,0 +1,36 @@
+package bitcoin
+
+import (
+	"fmt"
+	"net/url"
+)
+
+type Address struct {
+	Address    string `json:"address"`
+	ChainStats struct {
+		FundedTxoCount int `json:"funded_txo_count"`
+		FundedTxoSum   int `json:"funded_txo_sum"`
+		SpentTxoCount  int `json:"spent_txo_count"`
+		SpentTxoSum    int `json:"spent_txo_sum"`
+		TxCount        int `json:"tx_count"`
+	} `json:"chain_stats"`
+	MempoolStats struct {
+		FundedTxoCount int `json:"funded_txo_count"`
+		FundedTxoSum   int `json:"funded_txo_sum"`
+		SpentTxoCount  int `json:"spent_txo_count"`
+		SpentTxoSum    int `json:"spent_txo_sum"`
+		TxCount        int `json:"tx_count"`
+	} `json:"mempool_stats"`
+}
+
+// GetAddress returns an Address struct populated with data from blockstream.info
+// for a given BTC address
+func (c *client) GetAddress(address string) (*Address, error) {
+	addressResponse := &Address{}
+
+	err := c.get(fmt.Sprintf("address/%s", address), addressResponse, url.Values{})
+	if err != nil {
+		return nil, err
+	}
+	return addressResponse, nil
+}