diff --git a/bot.go b/bot.go
index a996790..9ef22b5 100644
--- a/bot.go
+++ b/bot.go
@@ -6,7 +6,6 @@ import (
 	"bytes"
 	"encoding/json"
 	"errors"
-	"fmt"
 	"io"
 	"io/ioutil"
 	"net/http"
@@ -36,21 +35,29 @@ type BotAPI struct {
 //
 // It requires a token, provided by @BotFather on Telegram.
 func NewBotAPI(token string) (*BotAPI, error) {
-	return NewBotAPIWithClient(token, &http.Client{})
+	return NewBotAPIWith(token, "https://api.telegram.org", &http.Client{})
 }
 
-// NewBotAPIWithClient creates a new BotAPI instance
-// and allows you to pass a http.Client.
+// NewBotAPIWith creates a new BotAPI instance
+// with custom Telegram Endpoint
 //
 // It requires a token, provided by @BotFather on Telegram.
-func NewBotAPIWithClient(token string, client *http.Client) (*BotAPI, error) {
+func NewBotAPIWithEndpoint(token string, apiEndpoint string) (*BotAPI, error) {
+	return NewBotAPIWith(token, apiEndpoint, &http.Client{})
+}
+
+// NewBotAPIWith creates a new BotAPI instance
+// with custom http.Client and Telegram Endpoint
+//
+// It requires a token, provided by @BotFather on Telegram.
+func NewBotAPIWith(token string, apiEndpoint string, client *http.Client) (*BotAPI, error) {
 	bot := &BotAPI{
 		Token:           token,
 		Client:          client,
 		Buffer:          100,
 		shutdownChannel: make(chan interface{}),
 
-		apiEndpoint: APIEndpoint,
+		apiEndpoint: apiEndpoint,
 	}
 
 	self, err := bot.GetMe()
@@ -67,11 +74,24 @@ func (b *BotAPI) SetAPIEndpoint(apiEndpoint string) {
 	b.apiEndpoint = apiEndpoint
 }
 
+
+// buildUrl returns a full path to send Bot request.
+//
+// It requires the Bot method string.
+func (bot *BotAPI) buildUrl(method string) string {
+	var b strings.Builder
+	b.WriteString(bot.apiEndpoint)
+	b.WriteString("/bot")
+	b.WriteString(bot.Token)
+	b.WriteString("/")
+	b.WriteString(method)
+	return b.String()
+}
+
 // MakeRequest makes a request to a specific endpoint with our token.
-func (bot *BotAPI) MakeRequest(endpoint string, params url.Values) (APIResponse, error) {
-	method := fmt.Sprintf(bot.apiEndpoint, bot.Token, endpoint)
+func (bot *BotAPI) MakeRequest(method string, params url.Values) (APIResponse, error) {
 
-	resp, err := bot.Client.PostForm(method, params)
+	resp, err := bot.Client.PostForm(bot.buildUrl(method), params)
 	if err != nil {
 		return APIResponse{}, err
 	}
@@ -84,7 +104,7 @@ func (bot *BotAPI) MakeRequest(endpoint string, params url.Values) (APIResponse,
 	}
 
 	if bot.Debug {
-		log.Printf("%s resp: %s", endpoint, bytes)
+		log.Printf("%s resp: %s", method, bytes)
 	}
 
 	if !apiResp.Ok {
@@ -145,7 +165,7 @@ func (bot *BotAPI) makeMessageRequest(endpoint string, params url.Values) (Messa
 //
 // Note that if your FileReader has a size set to -1, it will read
 // the file into memory to calculate a size.
-func (bot *BotAPI) UploadFile(endpoint string, params map[string]string, fieldname string, file interface{}) (APIResponse, error) {
+func (bot *BotAPI) UploadFile(method string, params map[string]string, fieldname string, file interface{}) (APIResponse, error) {
 	ms := multipartstreamer.New()
 
 	switch f := file.(type) {
@@ -194,9 +214,7 @@ func (bot *BotAPI) UploadFile(endpoint string, params map[string]string, fieldna
 		return APIResponse{}, errors.New(ErrBadFileType)
 	}
 
-	method := fmt.Sprintf(bot.apiEndpoint, bot.Token, endpoint)
-
-	req, err := http.NewRequest("POST", method, nil)
+	req, err := http.NewRequest("POST", bot.buildUrl(method), nil)
 	if err != nil {
 		return APIResponse{}, err
 	}
diff --git a/configs.go b/configs.go
index 181d4e4..fff045d 100644
--- a/configs.go
+++ b/configs.go
@@ -9,9 +9,6 @@ import (
 
 // Telegram constants
 const (
-	// APIEndpoint is the endpoint for all API methods,
-	// with formatting for Sprintf.
-	APIEndpoint = "https://api.telegram.org/bot%s/%s"
 	// FileEndpoint is the endpoint for downloading a file from Telegram.
 	FileEndpoint = "https://api.telegram.org/file/bot%s/%s"
 )