From 710a813a5742b9c9becfcc17b43881658b4219a5 Mon Sep 17 00:00:00 2001
From: Maxim Lebedev <git@toby3d.ru>
Date: Thu, 12 Oct 2017 14:49:05 +0500
Subject: [PATCH] :hankey: Added experimental SetWebhook method

---
 set_webhook.go | 31 +++++++++++++++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

diff --git a/set_webhook.go b/set_webhook.go
index 1c9e91e..d864f6b 100644
--- a/set_webhook.go
+++ b/set_webhook.go
@@ -1,6 +1,12 @@
 package telegram
 
-import json "github.com/pquerna/ffjson/ffjson"
+import (
+	"bytes"
+	"io/ioutil"
+
+	json "github.com/pquerna/ffjson/ffjson"
+	http "github.com/valyala/fasthttp"
+)
 
 type SetWebhookParameters struct {
 	// HTTPS url to send updates to. Use an empty string to remove webhook
@@ -40,12 +46,33 @@ type SetWebhookParameters struct {
 // recommend using a secret path in the URL, e.g. https://www.example.com/<token>.
 // Since nobody else knows your bot‘s token, you can be pretty sure it’s us.
 func (bot *Bot) SetWebhook(params *SetWebhookParameters) (bool, error) {
+	var args http.Args
+
+	if params.Certificate != nil {
+		cert := *params.Certificate
+		switch f := cert.(type) {
+		case string:
+			body, err := ioutil.ReadFile(f)
+			if err != nil {
+				return false, err
+			}
+
+			// args.AddBytesV("certificate", body)
+			cert = body
+		case []byte:
+			// args.AddBytesV("certificate", bytes.NewBuffer(f).Bytes())
+			cert = bytes.NewBuffer(f).Bytes()
+		}
+		// params.Certificate = nil
+		params.Certificate = &cert
+	}
+
 	dst, err := json.Marshal(*params)
 	if err != nil {
 		return false, err
 	}
 
-	resp, err := bot.request(dst, "setWebhook", nil)
+	resp, err := bot.request(dst, "setWebhook", &args)
 	if err != nil {
 		return false, err
 	}