Add CheckAddress (#198)

Author: hundredark

address.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"net/url"
 	"time"
 )
 
@@ -25,6 +26,11 @@ type Address struct {
 	UpdatedAt   string `json:"updated_at"`
 }
 
+type SimpleAddress struct {
+	Destination string `json:"destination"`
+	Tag         string `json:"tag"`
+}
+
 func CreateAddress(ctx context.Context, in *AddressInput, user *SafeUser) (*Address, error) {
 	tipBody := TipBodyForAddressAdd(in.AssetId, in.Destination, in.Tag, in.Label)
 	var err error
@@ -159,3 +165,29 @@ func GetAddressesByAssetId(ctx context.Context, assetId string, user *SafeUser)
 	}
 	return resp.Data, nil
 }
+
+func CheckAddress(ctx context.Context, asset, destination, tag string) (*SimpleAddress, error) {
+	v := url.Values{}
+	v.Set("asset", asset)
+	v.Set("destination", destination)
+	if tag != "" {
+		v.Set("tag", tag)
+	}
+	path := fmt.Sprintf("/external/addresses/check?" + v.Encode())
+	body, err := Request(ctx, "GET", path, nil, "")
+	if err != nil {
+		return nil, ServerError(ctx, err)
+	}
+	var resp struct {
+		Data  *SimpleAddress `json:"data"`
+		Error Error          `json:"error"`
+	}
+	err = json.Unmarshal(body, &resp)
+	if err != nil {
+		return nil, BadDataError(ctx)
+	}
+	if resp.Error.Code > 0 {
+		return nil, resp.Error
+	}
+	return resp.Data, nil
+}

address_test.go

@@ -0,0 +1,19 @@
+package bot
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAddress(t *testing.T) {
+	assert := assert.New(t)
+	ctx := context.Background()
+
+	address, err := CheckAddress(ctx, "c94ac88f-4671-3976-b60a-09064f1811e8", "0x1616b057f8a89955d4a4f9fd9eb10289ac0e44a1", "")
+	assert.Nil(err)
+	assert.NotNil(address)
+	assert.Equal("0x1616b057F8a89955d4A4f9fd9Eb10289ac0e44A1", address.Destination)
+	assert.Equal("", address.Tag)
+}