Add support for uploading multiple files.

bot.go

@@ -9,13 +9,12 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
+	"mime/multipart"
 	"net/http"
 	"net/url"
 	"os"
 	"strings"
 	"time"
-
-	"github.com/technoweenie/multipartstreamer"
 )
 
 // BotAPI allows you to interact with the Telegram Bot API.
@@ -82,7 +81,7 @@ func buildParams(in Params) (out url.Values) {
 }
 
 // MakeRequest makes a request to a specific endpoint with our token.
-func (bot *BotAPI) MakeRequest(endpoint string, params Params) (APIResponse, error) {
+func (bot *BotAPI) MakeRequest(endpoint string, params Params) (*APIResponse, error) {
 	if bot.Debug {
 		log.Printf("Endpoint: %s, params: %v\n", endpoint, params)
 	}
@@ -93,14 +92,14 @@ func (bot *BotAPI) MakeRequest(endpoint string, params Params) (APIResponse, err
 
 	resp, err := bot.Client.PostForm(method, values)
 	if err != nil {
-		return APIResponse{}, err
+		return nil, err
 	}
 	defer resp.Body.Close()
 
 	var apiResp APIResponse
 	bytes, err := bot.decodeAPIResponse(resp.Body, &apiResp)
 	if err != nil {
-		return apiResp, err
+		return &apiResp, err
 	}
 
 	if bot.Debug {
@@ -114,14 +113,14 @@ func (bot *BotAPI) MakeRequest(endpoint string, params Params) (APIResponse, err
 			parameters = *apiResp.Parameters
 		}
 
-		return apiResp, Error{
+		return &apiResp, &Error{
 			Code:               apiResp.ErrorCode,
 			Message:            apiResp.Description,
 			ResponseParameters: parameters,
 		}
 	}
 
-	return apiResp, nil
+	return &apiResp, nil
 }
 
 // decodeAPIResponse decode response and return slice of bytes if debug enabled.
@@ -148,86 +147,102 @@ func (bot *BotAPI) decodeAPIResponse(responseBody io.Reader, resp *APIResponse)
 	return data, nil
 }
 
-// UploadFile makes a request to the API with a file.
+// UploadFiles makes a request to the API with files.
-//
+func (bot *BotAPI) UploadFiles(endpoint string, params Params, files []RequestFile) (*APIResponse, error) {
-// Requires the parameter to hold the file not be in the params.
+	r, w := io.Pipe()
-// File should be a string to a file path, a FileBytes struct,
+	m := multipart.NewWriter(w)
-// a FileReader struct, or a url.URL.
-//
-// 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 Params, fieldname string, file interface{}) (APIResponse, error) {
-	ms := multipartstreamer.New()
 
-	switch f := file.(type) {
+	// This code modified from the very helpful @HirbodBehnam
+	// https://github.com/go-telegram-bot-api/telegram-bot-api/issues/354#issuecomment-663856473
+	go func() {
+		defer w.Close()
+		defer m.Close()
+
+		for field, value := range params {
+			if err := m.WriteField(field, value); err != nil {
+				panic(err)
+			}
+		}
+
+		for _, file := range files {
+			switch f := file.File.(type) {
 			case string:
-		ms.WriteFields(params)
-
 				fileHandle, err := os.Open(f)
 				if err != nil {
-			return APIResponse{}, err
+					panic(err)
 				}
 				defer fileHandle.Close()
 
-		fi, err := os.Stat(f)
+				part, err := m.CreateFormFile(file.Name, fileHandle.Name())
 				if err != nil {
-			return APIResponse{}, err
+					panic(err)
 				}
 
-		ms.WriteReader(fieldname, fileHandle.Name(), fi.Size(), fileHandle)
+				io.Copy(part, fileHandle)
 			case FileBytes:
-		ms.WriteFields(params)
+				part, err := m.CreateFormFile(file.Name, f.Name)
+				if err != nil {
+					panic(err)
+				}
 
 				buf := bytes.NewBuffer(f.Bytes)
-		ms.WriteReader(fieldname, f.Name, int64(len(f.Bytes)), buf)
+				io.Copy(part, buf)
 			case FileReader:
-		ms.WriteFields(params)
+				part, err := m.CreateFormFile(file.Name, f.Name)
-
+				if err != nil {
-		if f.Size != -1 {
+					panic(err)
-			ms.WriteReader(fieldname, f.Name, f.Size, f.Reader)
-
-			break
 				}
 
+				if f.Size != -1 {
+					io.Copy(part, f.Reader)
+				} else {
 					data, err := ioutil.ReadAll(f.Reader)
 					if err != nil {
-			return APIResponse{}, err
+						panic(err)
 					}
 
 					buf := bytes.NewBuffer(data)
-
+					io.Copy(part, buf)
-		ms.WriteReader(fieldname, f.Name, int64(len(data)), buf)
-	case url.URL:
-		params[fieldname] = f.String()
-
-		ms.WriteFields(params)
-	default:
-		return APIResponse{}, errors.New(ErrBadFileType)
 				}
+			case FileURL:
+				val := string(f)
+				if err := m.WriteField(file.Name, val); err != nil {
+					panic(err)
+				}
+			case FileID:
+				val := string(f)
+				if err := m.WriteField(file.Name, val); err != nil {
+					panic(err)
+				}
+			default:
+				panic(errors.New(ErrBadFileType))
+			}
+		}
+	}()
 
 	if bot.Debug {
-		log.Printf("Endpoint: %s, fieldname: %s, params: %v, file: %T\n", endpoint, fieldname, params, file)
+		log.Printf("Endpoint: %s, params: %v, with %d files\n", endpoint, params, len(files))
 	}
 
 	method := fmt.Sprintf(bot.apiEndpoint, bot.Token, endpoint)
 
-	req, err := http.NewRequest("POST", method, nil)
+	req, err := http.NewRequest("POST", method, r)
 	if err != nil {
-		return APIResponse{}, err
+		return nil, err
 	}
 
-	ms.SetupRequest(req)
+	req.Header.Set("Content-Type", m.FormDataContentType())
 
 	resp, err := bot.Client.Do(req)
 	if err != nil {
-		return APIResponse{}, err
+		return nil, err
 	}
 	defer resp.Body.Close()
 
 	var apiResp APIResponse
 	bytes, err := bot.decodeAPIResponse(resp.Body, &apiResp)
 	if err != nil {
-		return apiResp, err
+		return &apiResp, err
 	}
 
 	if bot.Debug {
@@ -241,13 +256,13 @@ func (bot *BotAPI) UploadFile(endpoint string, params Params, fieldname string,
 			parameters = *apiResp.Parameters
 		}
 
-		return apiResp, Error{
+		return &apiResp, &Error{
 			Message:            apiResp.Description,
 			ResponseParameters: parameters,
 		}
 	}
 
-	return apiResp, nil
+	return &apiResp, nil
 }
 
 // GetFileDirectURL returns direct URL to file
@@ -287,23 +302,54 @@ func (bot *BotAPI) IsMessageToMe(message Message) bool {
 	return strings.Contains(message.Text, "@"+bot.Self.UserName)
 }
 
+func hasFilesNeedingUpload(files []RequestFile) bool {
+	for _, file := range files {
+		switch file.File.(type) {
+		case string, FileBytes, FileReader:
+			return true
+		}
+	}
+
+	return false
+}
+
 // Request sends a Chattable to Telegram, and returns the APIResponse.
-func (bot *BotAPI) Request(c Chattable) (APIResponse, error) {
+func (bot *BotAPI) Request(c Chattable) (*APIResponse, error) {
 	params, err := c.params()
 	if err != nil {
-		return APIResponse{}, err
+		return nil, err
 	}
 
-	switch t := c.(type) {
+	if t, ok := c.(Fileable); ok {
-	case Fileable:
+		files := t.files()
-		if t.useExistingFile() {
+
-			return bot.MakeRequest(t.method(), params)
+		// If we have files that need to be uploaded, we should delegate the
+		// request to UploadFile.
+		if hasFilesNeedingUpload(files) {
+			return bot.UploadFiles(t.method(), params, files)
 		}
 
-		return bot.UploadFile(t.method(), params, t.name(), t.getFile())
+		// However, if there are no files to be uploaded, there's likely things
+		// that need to be turned into params instead.
+		for _, file := range files {
+			var s string
+
+			switch f := file.File.(type) {
+			case string:
+				s = f
+			case FileID:
+				s = string(f)
+			case FileURL:
+				s = string(f)
 			default:
-		return bot.MakeRequest(c.method(), params)
+				return nil, errors.New(ErrBadFileType)
 			}
+
+			params[file.Name] = s
+		}
+	}
+
+	return bot.MakeRequest(c.method(), params)
 }
 
 // Send will send a Chattable item to Telegram and provides the
@@ -322,9 +368,51 @@ func (bot *BotAPI) Send(c Chattable) (Message, error) {
 
 // SendMediaGroup sends a media group and returns the resulting messages.
 func (bot *BotAPI) SendMediaGroup(config MediaGroupConfig) ([]Message, error) {
-	params, _ := config.params()
+	filesToUpload := []RequestFile{}
 
-	resp, err := bot.MakeRequest(config.method(), params)
+	newMedia := []interface{}{}
+
+	for idx, media := range config.Media {
+		switch m := media.(type) {
+		case InputMediaPhoto:
+			switch f := m.Media.(type) {
+			case string, FileBytes, FileReader:
+				m.Media = fmt.Sprintf("attach://file-%d", idx)
+				newMedia = append(newMedia, m)
+
+				filesToUpload = append(filesToUpload, RequestFile{
+					Name: fmt.Sprintf("file-%d", idx),
+					File: f,
+				})
+			default:
+				newMedia = append(newMedia, m)
+			}
+		case InputMediaVideo:
+			switch f := m.Media.(type) {
+			case string, FileBytes, FileReader:
+				m.Media = fmt.Sprintf("attach://file-%d", idx)
+				newMedia = append(newMedia, m)
+
+				filesToUpload = append(filesToUpload, RequestFile{
+					Name: fmt.Sprintf("file-%d", idx),
+					File: f,
+				})
+			default:
+				newMedia = append(newMedia, m)
+			}
+		default:
+			return nil, errors.New(ErrBadFileType)
+		}
+	}
+
+	params, err := config.params()
+	if err != nil {
+		return nil, err
+	}
+
+	params.AddInterface("media", newMedia)
+
+	resp, err := bot.UploadFiles(config.method(), params, filesToUpload)
 	if err != nil {
 		return nil, err
 	}
@@ -340,9 +428,7 @@ func (bot *BotAPI) SendMediaGroup(config MediaGroupConfig) ([]Message, error) {
 // It requires UserID.
 // Offset and Limit are optional.
 func (bot *BotAPI) GetUserProfilePhotos(config UserProfilePhotosConfig) (UserProfilePhotos, error) {
-	params, _ := config.params()
+	resp, err := bot.Request(config)
-
-	resp, err := bot.MakeRequest(config.method(), params)
 	if err != nil {
 		return UserProfilePhotos{}, err
 	}
@@ -357,9 +443,7 @@ func (bot *BotAPI) GetUserProfilePhotos(config UserProfilePhotosConfig) (UserPro
 //
 // Requires FileID.
 func (bot *BotAPI) GetFile(config FileConfig) (File, error) {
-	params, _ := config.params()
+	resp, err := bot.Request(config)
-
-	resp, err := bot.MakeRequest(config.method(), params)
 	if err != nil {
 		return File{}, err
 	}
@@ -378,9 +462,7 @@ func (bot *BotAPI) GetFile(config FileConfig) (File, error) {
 // Set Timeout to a large number to reduce requests so you can get updates
 // instantly instead of having to wait between requests.
 func (bot *BotAPI) GetUpdates(config UpdateConfig) ([]Update, error) {
-	params, _ := config.params()
+	resp, err := bot.Request(config)
-
-	resp, err := bot.MakeRequest(config.method(), params)
 	if err != nil {
 		return []Update{}, err
 	}
@@ -481,7 +563,7 @@ func WriteToHTTPResponse(w http.ResponseWriter, c Chattable) error {
 	}
 
 	if t, ok := c.(Fileable); ok {
-		if !t.useExistingFile() {
+		if hasFilesNeedingUpload(t.files()) {
 			return errors.New("unable to use http response to upload files")
 		}
 	}
@@ -496,9 +578,7 @@ func WriteToHTTPResponse(w http.ResponseWriter, c Chattable) error {
 
 // GetChat gets information about a chat.
 func (bot *BotAPI) GetChat(config ChatInfoConfig) (Chat, error) {
-	params, _ := config.params()
+	resp, err := bot.Request(config)
-
-	resp, err := bot.MakeRequest(config.method(), params)
 	if err != nil {
 		return Chat{}, err
 	}
@@ -514,9 +594,7 @@ func (bot *BotAPI) GetChat(config ChatInfoConfig) (Chat, error) {
 // If none have been appointed, only the creator will be returned.
 // Bots are not shown, even if they are an administrator.
 func (bot *BotAPI) GetChatAdministrators(config ChatAdministratorsConfig) ([]ChatMember, error) {
-	params, _ := config.params()
+	resp, err := bot.Request(config)
-
-	resp, err := bot.MakeRequest(config.method(), params)
 	if err != nil {
 		return []ChatMember{}, err
 	}
@@ -529,9 +607,7 @@ func (bot *BotAPI) GetChatAdministrators(config ChatAdministratorsConfig) ([]Cha
 
 // GetChatMembersCount gets the number of users in a chat.
 func (bot *BotAPI) GetChatMembersCount(config ChatMemberCountConfig) (int, error) {
-	params, _ := config.params()
+	resp, err := bot.Request(config)
-
-	resp, err := bot.MakeRequest(config.method(), params)
 	if err != nil {
 		return -1, err
 	}
@@ -544,9 +620,7 @@ func (bot *BotAPI) GetChatMembersCount(config ChatMemberCountConfig) (int, error
 
 // GetChatMember gets a specific chat member.
 func (bot *BotAPI) GetChatMember(config GetChatMemberConfig) (ChatMember, error) {
-	params, _ := config.params()
+	resp, err := bot.Request(config)
-
-	resp, err := bot.MakeRequest(config.method(), params)
 	if err != nil {
 		return ChatMember{}, err
 	}
@@ -559,9 +633,7 @@ func (bot *BotAPI) GetChatMember(config GetChatMemberConfig) (ChatMember, error)
 
 // GetGameHighScores allows you to get the high scores for a game.
 func (bot *BotAPI) GetGameHighScores(config GetGameHighScoresConfig) ([]GameHighScore, error) {
-	params, _ := config.params()
+	resp, err := bot.Request(config)
-
-	resp, err := bot.MakeRequest(config.method(), params)
 	if err != nil {
 		return []GameHighScore{}, err
 	}
@@ -574,9 +646,7 @@ func (bot *BotAPI) GetGameHighScores(config GetGameHighScoresConfig) ([]GameHigh
 
 // GetInviteLink get InviteLink for a chat
 func (bot *BotAPI) GetInviteLink(config ChatInviteLinkConfig) (string, error) {
-	params, _ := config.params()
+	resp, err := bot.Request(config)
-
-	resp, err := bot.MakeRequest(config.method(), params)
 	if err != nil {
 		return "", err
 	}
@@ -589,9 +659,7 @@ func (bot *BotAPI) GetInviteLink(config ChatInviteLinkConfig) (string, error) {
 
 // GetStickerSet returns a StickerSet.
 func (bot *BotAPI) GetStickerSet(config GetStickerSetConfig) (StickerSet, error) {
-	params, _ := config.params()
+	resp, err := bot.Request(config)
-
-	resp, err := bot.MakeRequest(config.method(), params)
 	if err != nil {
 		return StickerSet{}, err
 	}
@@ -604,12 +672,7 @@ func (bot *BotAPI) GetStickerSet(config GetStickerSetConfig) (StickerSet, error)
 
 // StopPoll stops a poll and returns the result.
 func (bot *BotAPI) StopPoll(config StopPollConfig) (Poll, error) {
-	params, err := config.params()
+	resp, err := bot.Request(config)
-	if err != nil {
-		return Poll{}, err
-	}
-
-	resp, err := bot.MakeRequest(config.method(), params)
 	if err != nil {
 		return Poll{}, err
 	}
@@ -624,12 +687,7 @@ func (bot *BotAPI) StopPoll(config StopPollConfig) (Poll, error) {
 func (bot *BotAPI) GetMyCommands() ([]BotCommand, error) {
 	config := GetMyCommandsConfig{}
 
-	params, err := config.params()
+	resp, err := bot.Request(config)
-	if err != nil {
-		return nil, err
-	}
-
-	resp, err := bot.MakeRequest(config.method(), params)
 	if err != nil {
 		return nil, err
 	}

bot_test.go

@@ -92,7 +92,7 @@ func TestSendWithMessageForward(t *testing.T) {
 func TestSendWithNewPhoto(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewPhotoUpload(ChatID, "tests/image.jpg")
+	msg := NewPhoto(ChatID, "tests/image.jpg")
 	msg.Caption = "Test"
 	_, err := bot.Send(msg)
 
@@ -107,7 +107,7 @@ func TestSendWithNewPhotoWithFileBytes(t *testing.T) {
 	data, _ := ioutil.ReadFile("tests/image.jpg")
 	b := FileBytes{Name: "image.jpg", Bytes: data}
 
-	msg := NewPhotoUpload(ChatID, b)
+	msg := NewPhoto(ChatID, b)
 	msg.Caption = "Test"
 	_, err := bot.Send(msg)
 
@@ -122,7 +122,7 @@ func TestSendWithNewPhotoWithFileReader(t *testing.T) {
 	f, _ := os.Open("tests/image.jpg")
 	reader := FileReader{Name: "image.jpg", Reader: f, Size: -1}
 
-	msg := NewPhotoUpload(ChatID, reader)
+	msg := NewPhoto(ChatID, reader)
 	msg.Caption = "Test"
 	_, err := bot.Send(msg)
 
@@ -134,7 +134,7 @@ func TestSendWithNewPhotoWithFileReader(t *testing.T) {
 func TestSendWithNewPhotoReply(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewPhotoUpload(ChatID, "tests/image.jpg")
+	msg := NewPhoto(ChatID, "tests/image.jpg")
 	msg.ReplyToMessageID = ReplyToMessageID
 
 	_, err := bot.Send(msg)
@@ -147,7 +147,7 @@ func TestSendWithNewPhotoReply(t *testing.T) {
 func TestSendNewPhotoToChannel(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewPhotoUploadToChannel(Channel, "tests/image.jpg")
+	msg := NewPhotoToChannel(Channel, "tests/image.jpg")
 	msg.Caption = "Test"
 	_, err := bot.Send(msg)
 
@@ -163,7 +163,7 @@ func TestSendNewPhotoToChannelFileBytes(t *testing.T) {
 	data, _ := ioutil.ReadFile("tests/image.jpg")
 	b := FileBytes{Name: "image.jpg", Bytes: data}
 
-	msg := NewPhotoUploadToChannel(Channel, b)
+	msg := NewPhotoToChannel(Channel, b)
 	msg.Caption = "Test"
 	_, err := bot.Send(msg)
 
@@ -179,7 +179,7 @@ func TestSendNewPhotoToChannelFileReader(t *testing.T) {
 	f, _ := os.Open("tests/image.jpg")
 	reader := FileReader{Name: "image.jpg", Reader: f, Size: -1}
 
-	msg := NewPhotoUploadToChannel(Channel, reader)
+	msg := NewPhotoToChannel(Channel, reader)
 	msg.Caption = "Test"
 	_, err := bot.Send(msg)
 
@@ -192,7 +192,7 @@ func TestSendNewPhotoToChannelFileReader(t *testing.T) {
 func TestSendWithExistingPhoto(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewPhotoShare(ChatID, ExistingPhotoFileID)
+	msg := NewPhoto(ChatID, FileID(ExistingPhotoFileID))
 	msg.Caption = "Test"
 	_, err := bot.Send(msg)
 
@@ -204,7 +204,19 @@ func TestSendWithExistingPhoto(t *testing.T) {
 func TestSendWithNewDocument(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewDocumentUpload(ChatID, "tests/image.jpg")
+	msg := NewDocument(ChatID, "tests/image.jpg")
+	_, err := bot.Send(msg)
+
+	if err != nil {
+		t.Error(err)
+	}
+}
+
+func TestSendWithNewDocumentAndThumb(t *testing.T) {
+	bot, _ := getBot(t)
+
+	msg := NewDocument(ChatID, "tests/voice.ogg")
+	msg.AddFile("thumb", "tests/image.jpg")
 	_, err := bot.Send(msg)
 
 	if err != nil {
@@ -215,7 +227,7 @@ func TestSendWithNewDocument(t *testing.T) {
 func TestSendWithExistingDocument(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewDocumentShare(ChatID, ExistingDocumentFileID)
+	msg := NewDocument(ChatID, FileID(ExistingDocumentFileID))
 	_, err := bot.Send(msg)
 
 	if err != nil {
@@ -226,7 +238,7 @@ func TestSendWithExistingDocument(t *testing.T) {
 func TestSendWithNewAudio(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewAudioUpload(ChatID, "tests/audio.mp3")
+	msg := NewAudio(ChatID, "tests/audio.mp3")
 	msg.Title = "TEST"
 	msg.Duration = 10
 	msg.Performer = "TEST"
@@ -242,7 +254,7 @@ func TestSendWithNewAudio(t *testing.T) {
 func TestSendWithExistingAudio(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewAudioShare(ChatID, ExistingAudioFileID)
+	msg := NewAudio(ChatID, FileID(ExistingAudioFileID))
 	msg.Title = "TEST"
 	msg.Duration = 10
 	msg.Performer = "TEST"
@@ -257,7 +269,7 @@ func TestSendWithExistingAudio(t *testing.T) {
 func TestSendWithNewVoice(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewVoiceUpload(ChatID, "tests/voice.ogg")
+	msg := NewVoice(ChatID, "tests/voice.ogg")
 	msg.Duration = 10
 	_, err := bot.Send(msg)
 
@@ -269,7 +281,7 @@ func TestSendWithNewVoice(t *testing.T) {
 func TestSendWithExistingVoice(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewVoiceShare(ChatID, ExistingVoiceFileID)
+	msg := NewVoice(ChatID, FileID(ExistingVoiceFileID))
 	msg.Duration = 10
 	_, err := bot.Send(msg)
 
@@ -311,7 +323,7 @@ func TestSendWithVenue(t *testing.T) {
 func TestSendWithNewVideo(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewVideoUpload(ChatID, "tests/video.mp4")
+	msg := NewVideo(ChatID, "tests/video.mp4")
 	msg.Duration = 10
 	msg.Caption = "TEST"
 
@@ -325,7 +337,7 @@ func TestSendWithNewVideo(t *testing.T) {
 func TestSendWithExistingVideo(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewVideoShare(ChatID, ExistingVideoFileID)
+	msg := NewVideo(ChatID, FileID(ExistingVideoFileID))
 	msg.Duration = 10
 	msg.Caption = "TEST"
 
@@ -339,7 +351,7 @@ func TestSendWithExistingVideo(t *testing.T) {
 func TestSendWithNewVideoNote(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewVideoNoteUpload(ChatID, 240, "tests/videonote.mp4")
+	msg := NewVideoNote(ChatID, 240, "tests/videonote.mp4")
 	msg.Duration = 10
 
 	_, err := bot.Send(msg)
@@ -352,7 +364,7 @@ func TestSendWithNewVideoNote(t *testing.T) {
 func TestSendWithExistingVideoNote(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewVideoNoteShare(ChatID, 240, ExistingVideoNoteFileID)
+	msg := NewVideoNote(ChatID, 240, FileID(ExistingVideoNoteFileID))
 	msg.Duration = 10
 
 	_, err := bot.Send(msg)
@@ -365,7 +377,7 @@ func TestSendWithExistingVideoNote(t *testing.T) {
 func TestSendWithNewSticker(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewStickerUpload(ChatID, "tests/image.jpg")
+	msg := NewSticker(ChatID, "tests/image.jpg")
 
 	_, err := bot.Send(msg)
 
@@ -377,7 +389,7 @@ func TestSendWithNewSticker(t *testing.T) {
 func TestSendWithExistingSticker(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewStickerShare(ChatID, ExistingStickerFileID)
+	msg := NewSticker(ChatID, FileID(ExistingStickerFileID))
 
 	_, err := bot.Send(msg)
 
@@ -389,7 +401,7 @@ func TestSendWithExistingSticker(t *testing.T) {
 func TestSendWithNewStickerAndKeyboardHide(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewStickerUpload(ChatID, "tests/image.jpg")
+	msg := NewSticker(ChatID, "tests/image.jpg")
 	msg.ReplyMarkup = ReplyKeyboardRemove{
 		RemoveKeyboard: true,
 		Selective:      false,
@@ -404,7 +416,7 @@ func TestSendWithNewStickerAndKeyboardHide(t *testing.T) {
 func TestSendWithExistingStickerAndKeyboardHide(t *testing.T) {
 	bot, _ := getBot(t)
 
-	msg := NewStickerShare(ChatID, ExistingStickerFileID)
+	msg := NewSticker(ChatID, FileID(ExistingStickerFileID))
 	msg.ReplyMarkup = ReplyKeyboardRemove{
 		RemoveKeyboard: true,
 		Selective:      false,
@@ -526,9 +538,9 @@ func TestSendWithMediaGroup(t *testing.T) {
 	bot, _ := getBot(t)
 
 	cfg := NewMediaGroup(ChatID, []interface{}{
-		NewInputMediaPhoto("https://i.imgur.com/unQLJIb.jpg"),
+		NewInputMediaPhoto(FileURL("https://i.imgur.com/unQLJIb.jpg")),
-		NewInputMediaPhoto("https://i.imgur.com/J5qweNZ.jpg"),
+		NewInputMediaPhoto("tests/image.jpg"),
-		NewInputMediaVideo("https://i.imgur.com/F6RmI24.mp4"),
+		NewInputMediaVideo("tests/video.mp4"),
 	})
 
 	messages, err := bot.SendMediaGroup(cfg)
@@ -537,11 +549,11 @@ func TestSendWithMediaGroup(t *testing.T) {
 	}
 
 	if messages == nil {
-		t.Error()
+		t.Error("No received messages")
 	}
 
-	if len(messages) != 3 {
+	if len(messages) != len(cfg.Media) {
-		t.Error()
+		t.Errorf("Different number of messages: %d", len(messages))
 	}
 }
 

configs.go

@@ -55,12 +55,19 @@ type Chattable interface {
 	method() string
 }
 
+// RequestFile represents a file associated with a request. May involve
+// uploading a file, or passing an existing ID.
+type RequestFile struct {
+	// The multipart upload field name.
+	Name string
+	// The file to upload.
+	File interface{}
+}
+
 // Fileable is any config type that can be sent that includes a file.
 type Fileable interface {
 	Chattable
-	name() string
+	files() []RequestFile
-	getFile() interface{}
-	useExistingFile() bool
 }
 
 // BaseChat is base type for all chat config types.
@@ -87,13 +94,23 @@ func (chat *BaseChat) params() (Params, error) {
 // BaseFile is a base type for all file config types.
 type BaseFile struct {
 	BaseChat
-	File        interface{}
+	Files    []RequestFile
-	FileID      string
-	UseExisting bool
 	MimeType string
 	FileSize int
 }
 
+// AddFile specifies a file for a Telegram request.
+func (file *BaseFile) AddFile(name string, f interface{}) {
+	if file.Files == nil {
+		file.Files = make([]RequestFile, 0, 1)
+	}
+
+	file.Files = append(file.Files, RequestFile{
+		Name: name,
+		File: f,
+	})
+}
+
 func (file BaseFile) params() (Params, error) {
 	params, err := file.BaseChat.params()
 
@@ -103,12 +120,8 @@ func (file BaseFile) params() (Params, error) {
 	return params, err
 }
 
-func (file BaseFile) getFile() interface{} {
+func (file BaseFile) files() []RequestFile {
-	return file.File
+	return file.Files
-}
-
-func (file BaseFile) useExistingFile() bool {
-	return file.UseExisting
 }
 
 // BaseEdit is base type of all chat edits.
@@ -194,7 +207,6 @@ type PhotoConfig struct {
 func (config PhotoConfig) params() (Params, error) {
 	params, err := config.BaseFile.params()
 
-	params.AddNonEmpty(config.name(), config.FileID)
 	params.AddNonEmpty("caption", config.Caption)
 	params.AddNonEmpty("parse_mode", config.ParseMode)
 
@@ -225,7 +237,6 @@ func (config AudioConfig) params() (Params, error) {
 		return params, err
 	}
 
-	params.AddNonEmpty(config.name(), config.FileID)
 	params.AddNonZero("duration", config.Duration)
 	params.AddNonEmpty("performer", config.Performer)
 	params.AddNonEmpty("title", config.Title)
@@ -253,7 +264,6 @@ type DocumentConfig struct {
 func (config DocumentConfig) params() (Params, error) {
 	params, err := config.BaseFile.params()
 
-	params.AddNonEmpty(config.name(), config.FileID)
 	params.AddNonEmpty("caption", config.Caption)
 	params.AddNonEmpty("parse_mode", config.ParseMode)
 
@@ -274,11 +284,7 @@ type StickerConfig struct {
 }
 
 func (config StickerConfig) params() (Params, error) {
-	params, err := config.BaseChat.params()
+	return config.BaseChat.params()
-
-	params.AddNonEmpty(config.name(), config.FileID)
-
-	return params, err
 }
 
 func (config StickerConfig) name() string {
@@ -301,7 +307,6 @@ type VideoConfig struct {
 func (config VideoConfig) params() (Params, error) {
 	params, err := config.BaseChat.params()
 
-	params.AddNonEmpty(config.name(), config.FileID)
 	params.AddNonZero("duration", config.Duration)
 	params.AddNonEmpty("caption", config.Caption)
 	params.AddNonEmpty("parse_mode", config.ParseMode)
@@ -329,7 +334,6 @@ type AnimationConfig struct {
 func (config AnimationConfig) params() (Params, error) {
 	params, err := config.BaseChat.params()
 
-	params.AddNonEmpty(config.name(), config.FileID)
 	params.AddNonZero("duration", config.Duration)
 	params.AddNonEmpty("caption", config.Caption)
 	params.AddNonEmpty("parse_mode", config.ParseMode)
@@ -355,7 +359,6 @@ type VideoNoteConfig struct {
 func (config VideoNoteConfig) params() (Params, error) {
 	params, err := config.BaseChat.params()
 
-	params.AddNonEmpty(config.name(), config.FileID)
 	params.AddNonZero("duration", config.Duration)
 	params.AddNonZero("length", config.Length)
 
@@ -381,7 +384,6 @@ type VoiceConfig struct {
 func (config VoiceConfig) params() (Params, error) {
 	params, err := config.BaseChat.params()
 
-	params.AddNonEmpty(config.name(), config.FileID)
 	params.AddNonZero("duration", config.Duration)
 	params.AddNonEmpty("caption", config.Caption)
 	params.AddNonEmpty("parse_mode", config.ParseMode)
@@ -683,23 +685,28 @@ func (config EditMessageCaptionConfig) method() string {
 	return "editMessageCaption"
 }
 
-// EditMessageMediaConfig contains information about editing a message's media.
+// EditMessageMediaConfig allows you to make an editMessageMedia request.
 type EditMessageMediaConfig struct {
 	BaseEdit
 
 	Media interface{}
 }
 
+func (config EditMessageMediaConfig) files() []RequestFile {
+	return []RequestFile{
+		{
+			Name: "media",
+			File: config.Media,
+		},
+	}
+}
+
 func (EditMessageMediaConfig) method() string {
 	return "editMessageMedia"
 }
 
 func (config EditMessageMediaConfig) params() (Params, error) {
-	params, err := config.BaseEdit.params()
+	return config.BaseEdit.params()
-
-	params.AddInterface("media", config.Media)
-
-	return params, err
 }
 
 // EditMessageReplyMarkupConfig allows you to modify the reply markup
@@ -818,14 +825,6 @@ func (config WebhookConfig) name() string {
 	return "certificate"
 }
 
-func (config WebhookConfig) getFile() interface{} {
-	return config.Certificate
-}
-
-func (config WebhookConfig) useExistingFile() bool {
-	return config.URL != nil
-}
-
 // RemoveWebhookConfig is a helper to remove a webhook.
 type RemoveWebhookConfig struct {
 }
@@ -854,6 +853,12 @@ type FileReader struct {
 	Size   int64
 }
 
+// FileURL is a URL to use as a file for a request.
+type FileURL string
+
+// FileID is an ID of a file already uploaded to Telegram.
+type FileID string
+
 // InlineConfig contains information on making an InlineQuery response.
 type InlineConfig struct {
 	InlineQueryID     string        `json:"inline_query_id"`
@@ -1312,14 +1317,6 @@ func (config SetChatPhotoConfig) name() string {
 	return "photo"
 }
 
-func (config SetChatPhotoConfig) getFile() interface{} {
-	return config.File
-}
-
-func (config SetChatPhotoConfig) useExistingFile() bool {
-	return config.UseExisting
-}
-
 // DeleteChatPhotoConfig allows you to delete a group, supergroup, or channel's photo.
 type DeleteChatPhotoConfig struct {
 	ChatID          int64
@@ -1415,18 +1412,13 @@ func (config UploadStickerConfig) params() (Params, error) {
 	return params, nil
 }
 
-func (config UploadStickerConfig) name() string {
+func (config UploadStickerConfig) files() []RequestFile {
-	return "png_sticker"
+	return []RequestFile{
+		{
+			Name: "png_sticker",
+			File: config.PNGSticker,
+		},
 	}
-
-func (config UploadStickerConfig) getFile() interface{} {
-	return config.PNGSticker
-}
-
-func (config UploadStickerConfig) useExistingFile() bool {
-	_, ok := config.PNGSticker.(string)
-
-	return ok
 }
 
 // NewStickerSetConfig allows creating a new sticker set.
@@ -1454,12 +1446,6 @@ func (config NewStickerSetConfig) params() (Params, error) {
 	params["name"] = config.Name
 	params["title"] = config.Title
 
-	if sticker, ok := config.PNGSticker.(string); ok {
-		params[config.name()] = sticker
-	} else if sticker, ok := config.TGSSticker.(string); ok {
-		params[config.name()] = sticker
-	}
-
 	params["emojis"] = config.Emojis
 
 	params.AddBool("contains_masks", config.ContainsMasks)
@@ -1469,26 +1455,18 @@ func (config NewStickerSetConfig) params() (Params, error) {
 	return params, err
 }
 
-func (config NewStickerSetConfig) getFile() interface{} {
+func (config NewStickerSetConfig) files() []RequestFile {
-	return config.PNGSticker
-}
-
-func (config NewStickerSetConfig) name() string {
-	return "png_sticker"
-}
-
-func (config NewStickerSetConfig) useExistingFile() bool {
 	if config.PNGSticker != nil {
-		_, ok := config.PNGSticker.(string)
+		return []RequestFile{{
-		return ok
+			Name: "png_sticker",
+			File: config.PNGSticker,
+		}}
 	}
 
-	if config.TGSSticker != nil {
+	return []RequestFile{{
-		_, ok := config.TGSSticker.(string)
+		Name: "tgs_sticker",
-		return ok
+		File: config.TGSSticker,
-	}
+	}}
-
-	panic("NewStickerSetConfig had nil PNGSticker and TGSSticker")
 }
 
 // AddStickerConfig allows you to add a sticker to a set.
@@ -1512,29 +1490,24 @@ func (config AddStickerConfig) params() (Params, error) {
 	params["name"] = config.Name
 	params["emojis"] = config.Emojis
 
-	if sticker, ok := config.PNGSticker.(string); ok {
-		params[config.name()] = sticker
-	} else if sticker, ok := config.TGSSticker.(string); ok {
-		params[config.name()] = sticker
-	}
-
 	err := params.AddInterface("mask_position", config.MaskPosition)
 
 	return params, err
 }
 
-func (config AddStickerConfig) name() string {
+func (config AddStickerConfig) files() []RequestFile {
-	return "png_sticker"
+	if config.PNGSticker != nil {
+		return []RequestFile{{
+			Name: "png_sticker",
+			File: config.PNGSticker,
+		}}
 	}
 
-func (config AddStickerConfig) getFile() interface{} {
+	return []RequestFile{{
-	return config.PNGSticker
+		Name: "tgs_sticker",
-}
+		File: config.TGSSticker,
+	}}
 
-func (config AddStickerConfig) useExistingFile() bool {
-	_, ok := config.PNGSticker.(string)
-
-	return ok
 }
 
 // SetStickerPositionConfig allows you to change the position of a sticker in a set.
@@ -1601,15 +1574,6 @@ func (config SetStickerSetThumbConfig) name() string {
 	return "thumb"
 }
 
-func (config SetStickerSetThumbConfig) getFile() interface{} {
-	return config.Thumb
-}
-
-func (config SetStickerSetThumbConfig) useExistingFile() bool {
-	_, ok := config.Thumb.(string)
-	return ok
-}
-
 // SetChatStickerSetConfig allows you to set the sticker set for a supergroup.
 type SetChatStickerSetConfig struct {
 	ChatID             int64
@@ -1652,6 +1616,9 @@ func (config DeleteChatStickerSetConfig) params() (Params, error) {
 // MediaGroupConfig allows you to send a group of media.
 //
 // Media consist of InputMedia items (InputMediaPhoto, InputMediaVideo).
+//
+// Due to additional processing required, this config is not Chattable or
+// Fileable. It must be uploaded with SendMediaGroup.
 type MediaGroupConfig struct {
 	ChatID          int64
 	ChannelUsername string
@@ -1669,9 +1636,6 @@ func (config MediaGroupConfig) params() (Params, error) {
 	params := make(Params)
 
 	params.AddFirstValid("chat_id", config.ChatID, config.ChannelUsername)
-	if err := params.AddInterface("media", config.Media); err != nil {
-		return params, nil
-	}
 	params.AddBool("disable_notification", config.DisableNotification)
 	params.AddNonZero("reply_to_message_id", config.ReplyToMessageID)
 

go.mod

@@ -1,5 +1,3 @@
 module github.com/go-telegram-bot-api/telegram-bot-api/v5
 
-require github.com/technoweenie/multipartstreamer v1.0.1
-
 go 1.13

go.sum

@@ -1,2 +0,0 @@
-github.com/technoweenie/multipartstreamer v1.0.1 h1:XRztA5MXiR1TIRHxH2uNxXxaIkKQDeX7m2XsSOlQEnM=
-github.com/technoweenie/multipartstreamer v1.0.1/go.mod h1:jNVxdtShOxzAsukZwTSw6MDx5eUJoiEBsSvzDU9uzog=

helpers.go

@@ -51,261 +51,131 @@ func NewForward(chatID int64, fromChatID int64, messageID int) ForwardConfig {
 	}
 }
 
-// NewPhotoUpload creates a new photo uploader.
+// NewPhoto creates a new sendPhoto request.
-//
-// chatID is where to send it, file is a string path to the file,
-// FileReader, or FileBytes.
 //
 // Note that you must send animated GIFs as a document.
-func NewPhotoUpload(chatID int64, file interface{}) PhotoConfig {
+func NewPhoto(chatID int64, file interface{}) PhotoConfig {
-	return PhotoConfig{
+	config := PhotoConfig{
 		BaseFile: BaseFile{
 			BaseChat: BaseChat{ChatID: chatID},
-			File:        file,
-			UseExisting: false,
 		},
 	}
+
+	config.AddFile(config.name(), file)
+
+	return config
 }
 
-// NewPhotoUploadToChannel creates a new photo uploader to send a photo to a channel.
+// NewPhotoToChannel creates a new photo uploader to send a photo to a channel.
-//
-// username is the username of the channel, file is a string path to the file,
-// FileReader, or FileBytes.
 //
 // Note that you must send animated GIFs as a document.
-func NewPhotoUploadToChannel(username string, file interface{}) PhotoConfig {
+func NewPhotoToChannel(username string, file interface{}) PhotoConfig {
-	return PhotoConfig{
+	config := PhotoConfig{
 		BaseFile: BaseFile{
 			BaseChat: BaseChat{
 				ChannelUsername: username,
 			},
-			File:        file,
-			UseExisting: false,
 		},
 	}
+
+	config.AddFile(config.name(), file)
+
+	return config
 }
 
-// NewPhotoShare shares an existing photo.
+// NewAudio creates a new sendAudio request.
-// You may use this to reshare an existing photo without reuploading it.
+func NewAudio(chatID int64, file interface{}) AudioConfig {
-//
+	config := AudioConfig{
-// chatID is where to send it, fileID is the ID of the file
-// already uploaded.
-func NewPhotoShare(chatID int64, fileID string) PhotoConfig {
-	return PhotoConfig{
 		BaseFile: BaseFile{
 			BaseChat: BaseChat{ChatID: chatID},
-			FileID:      fileID,
-			UseExisting: true,
 		},
 	}
+
+	config.AddFile(config.name(), file)
+
+	return config
 }
 
-// NewAudioUpload creates a new audio uploader.
+// NewDocument creates a new sendDocument request.
+func NewDocument(chatID int64, file interface{}) DocumentConfig {
+	config := DocumentConfig{
+		BaseFile: BaseFile{
+			BaseChat: BaseChat{ChatID: chatID},
+		},
+	}
+
+	config.AddFile(config.name(), file)
+
+	return config
+}
+
+// NewSticker creates a new sendSticker request.
+func NewSticker(chatID int64, file interface{}) StickerConfig {
+	config := StickerConfig{
+		BaseFile: BaseFile{
+			BaseChat: BaseChat{ChatID: chatID},
+		},
+	}
+
+	config.AddFile(config.name(), file)
+
+	return config
+}
+
+// NewVideo creates a new sendVideo request.
+func NewVideo(chatID int64, file interface{}) VideoConfig {
+	config := VideoConfig{
+		BaseFile: BaseFile{
+			BaseChat: BaseChat{ChatID: chatID},
+		},
+	}
+
+	config.AddFile(config.name(), file)
+
+	return config
+}
+
+// NewAnimation creates a new sendAnimation request.
+func NewAnimation(chatID int64, file interface{}) AnimationConfig {
+	config := AnimationConfig{
+		BaseFile: BaseFile{
+			BaseChat: BaseChat{ChatID: chatID},
+		},
+	}
+
+	config.AddFile(config.name(), file)
+
+	return config
+}
+
+// NewVideoNote creates a new sendVideoNote request.
 //
 // chatID is where to send it, file is a string path to the file,
 // FileReader, or FileBytes.
-func NewAudioUpload(chatID int64, file interface{}) AudioConfig {
+func NewVideoNote(chatID int64, length int, file interface{}) VideoNoteConfig {
-	return AudioConfig{
+	config := VideoNoteConfig{
 		BaseFile: BaseFile{
 			BaseChat: BaseChat{ChatID: chatID},
-			File:        file,
-			UseExisting: false,
-		},
-	}
-}
-
-// NewAudioShare shares an existing audio file.
-// You may use this to reshare an existing audio file without
-// reuploading it.
-//
-// chatID is where to send it, fileID is the ID of the audio
-// already uploaded.
-func NewAudioShare(chatID int64, fileID string) AudioConfig {
-	return AudioConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			FileID:      fileID,
-			UseExisting: true,
-		},
-	}
-}
-
-// NewDocumentUpload creates a new document uploader.
-//
-// chatID is where to send it, file is a string path to the file,
-// FileReader, or FileBytes.
-func NewDocumentUpload(chatID int64, file interface{}) DocumentConfig {
-	return DocumentConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			File:        file,
-			UseExisting: false,
-		},
-	}
-}
-
-// NewDocumentShare shares an existing document.
-// You may use this to reshare an existing document without
-// reuploading it.
-//
-// chatID is where to send it, fileID is the ID of the document
-// already uploaded.
-func NewDocumentShare(chatID int64, fileID string) DocumentConfig {
-	return DocumentConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			FileID:      fileID,
-			UseExisting: true,
-		},
-	}
-}
-
-// NewStickerUpload creates a new sticker uploader.
-//
-// chatID is where to send it, file is a string path to the file,
-// FileReader, or FileBytes.
-func NewStickerUpload(chatID int64, file interface{}) StickerConfig {
-	return StickerConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			File:        file,
-			UseExisting: false,
-		},
-	}
-}
-
-// NewStickerShare shares an existing sticker.
-// You may use this to reshare an existing sticker without
-// reuploading it.
-//
-// chatID is where to send it, fileID is the ID of the sticker
-// already uploaded.
-func NewStickerShare(chatID int64, fileID string) StickerConfig {
-	return StickerConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			FileID:      fileID,
-			UseExisting: true,
-		},
-	}
-}
-
-// NewVideoUpload creates a new video uploader.
-//
-// chatID is where to send it, file is a string path to the file,
-// FileReader, or FileBytes.
-func NewVideoUpload(chatID int64, file interface{}) VideoConfig {
-	return VideoConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			File:        file,
-			UseExisting: false,
-		},
-	}
-}
-
-// NewVideoShare shares an existing video.
-// You may use this to reshare an existing video without reuploading it.
-//
-// chatID is where to send it, fileID is the ID of the video
-// already uploaded.
-func NewVideoShare(chatID int64, fileID string) VideoConfig {
-	return VideoConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			FileID:      fileID,
-			UseExisting: true,
-		},
-	}
-}
-
-// NewAnimationUpload creates a new animation uploader.
-//
-// chatID is where to send it, file is a string path to the file,
-// FileReader, or FileBytes.
-func NewAnimationUpload(chatID int64, file interface{}) AnimationConfig {
-	return AnimationConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			File:        file,
-			UseExisting: false,
-		},
-	}
-}
-
-// NewAnimationShare shares an existing animation.
-// You may use this to reshare an existing animation without reuploading it.
-//
-// chatID is where to send it, fileID is the ID of the animation
-// already uploaded.
-func NewAnimationShare(chatID int64, fileID string) AnimationConfig {
-	return AnimationConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			FileID:      fileID,
-			UseExisting: true,
-		},
-	}
-}
-
-// NewVideoNoteUpload creates a new video note uploader.
-//
-// chatID is where to send it, file is a string path to the file,
-// FileReader, or FileBytes.
-func NewVideoNoteUpload(chatID int64, length int, file interface{}) VideoNoteConfig {
-	return VideoNoteConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			File:        file,
-			UseExisting: false,
 		},
 		Length: length,
 	}
+
+	config.AddFile(config.name(), file)
+
+	return config
 }
 
-// NewVideoNoteShare shares an existing video.
+// NewVoice creates a new sendVoice request.
-// You may use this to reshare an existing video without reuploading it.
+func NewVoice(chatID int64, file interface{}) VoiceConfig {
-//
+	config := VoiceConfig{
-// chatID is where to send it, fileID is the ID of the video
-// already uploaded.
-func NewVideoNoteShare(chatID int64, length int, fileID string) VideoNoteConfig {
-	return VideoNoteConfig{
 		BaseFile: BaseFile{
 			BaseChat: BaseChat{ChatID: chatID},
-			FileID:      fileID,
-			UseExisting: true,
 		},
-		Length: length,
-	}
 	}
 
-// NewVoiceUpload creates a new voice uploader.
+	config.AddFile(config.name(), file)
-//
-// chatID is where to send it, file is a string path to the file,
-// FileReader, or FileBytes.
-func NewVoiceUpload(chatID int64, file interface{}) VoiceConfig {
-	return VoiceConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			File:        file,
-			UseExisting: false,
-		},
-	}
-}
 
-// NewVoiceShare shares an existing voice.
+	return config
-// You may use this to reshare an existing voice without reuploading it.
-//
-// chatID is where to send it, fileID is the ID of the video
-// already uploaded.
-func NewVoiceShare(chatID int64, fileID string) VoiceConfig {
-	return VoiceConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			FileID:      fileID,
-			UseExisting: true,
-		},
-	}
 }
 
 // NewMediaGroup creates a new media group. Files should be an array of
@@ -318,7 +188,7 @@ func NewMediaGroup(chatID int64, files []interface{}) MediaGroupConfig {
 }
 
 // NewInputMediaPhoto creates a new InputMediaPhoto.
-func NewInputMediaPhoto(media string) InputMediaPhoto {
+func NewInputMediaPhoto(media interface{}) InputMediaPhoto {
 	return InputMediaPhoto{
 		BaseInputMedia{
 			Type:  "photo",
@@ -328,7 +198,7 @@ func NewInputMediaPhoto(media string) InputMediaPhoto {
 }
 
 // NewInputMediaVideo creates a new InputMediaVideo.
-func NewInputMediaVideo(media string) InputMediaVideo {
+func NewInputMediaVideo(media interface{}) InputMediaVideo {
 	return InputMediaVideo{
 		BaseInputMedia: BaseInputMedia{
 			Type:  "video",
@@ -338,7 +208,7 @@ func NewInputMediaVideo(media string) InputMediaVideo {
 }
 
 // NewInputMediaAnimation creates a new InputMediaAnimation.
-func NewInputMediaAnimation(media string) InputMediaAnimation {
+func NewInputMediaAnimation(media interface{}) InputMediaAnimation {
 	return InputMediaAnimation{
 		BaseInputMedia: BaseInputMedia{
 			Type:  "animation",
@@ -348,7 +218,7 @@ func NewInputMediaAnimation(media string) InputMediaAnimation {
 }
 
 // NewInputMediaAudio creates a new InputMediaAudio.
-func NewInputMediaAudio(media string) InputMediaAudio {
+func NewInputMediaAudio(media interface{}) InputMediaAudio {
 	return InputMediaAudio{
 		BaseInputMedia: BaseInputMedia{
 			Type:  "audio",
@@ -875,37 +745,6 @@ func NewInvoice(chatID int64, title, description, payload, providerToken, startP
 		Prices:         prices}
 }
 
-// NewSetChatPhotoUpload creates a new chat photo uploader.
-//
-// chatID is where to send it, file is a string path to the file,
-// FileReader, or FileBytes.
-//
-// Note that you must send animated GIFs as a document.
-func NewSetChatPhotoUpload(chatID int64, file interface{}) SetChatPhotoConfig {
-	return SetChatPhotoConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			File:        file,
-			UseExisting: false,
-		},
-	}
-}
-
-// NewSetChatPhotoShare shares an existing photo.
-// You may use this to reshare an existing photo without reuploading it.
-//
-// chatID is where to send it, fileID is the ID of the file
-// already uploaded.
-func NewSetChatPhotoShare(chatID int64, fileID string) SetChatPhotoConfig {
-	return SetChatPhotoConfig{
-		BaseFile: BaseFile{
-			BaseChat:    BaseChat{ChatID: chatID},
-			FileID:      fileID,
-			UseExisting: true,
-		},
-	}
-}
-
 // NewChatTitle allows you to update the title of a chat.
 func NewChatTitle(chatID int64, title string) SetChatTitleConfig {
 	return SetChatTitleConfig{
@@ -924,14 +763,17 @@ func NewChatDescription(chatID int64, description string) SetChatDescriptionConf
 
 // NewChatPhoto allows you to update the photo for a chat.
 func NewChatPhoto(chatID int64, photo interface{}) SetChatPhotoConfig {
-	return SetChatPhotoConfig{
+	config := SetChatPhotoConfig{
 		BaseFile: BaseFile{
 			BaseChat: BaseChat{
 				ChatID: chatID,
 			},
-			File: photo,
 		},
 	}
+
+	config.AddFile(config.name(), photo)
+
+	return config
 }
 
 // NewDeleteChatPhoto allows you to delete the photo for a chat.

types.go

@@ -1113,9 +1113,9 @@ type BotCommand struct {
 // BaseInputMedia is a base type for the InputMedia types.
 type BaseInputMedia struct {
 	Type      string      `json:"type"`
-	Media     string `json:"media"`
+	Media     interface{} `json:"media"`
-	Caption   string `json:"caption"`
+	Caption   string      `json:"caption,omitempty"`
-	ParseMode string `json:"parse_mode"`
+	ParseMode string      `json:"parse_mode,omitempty"`
 }
 
 // InputMediaPhoto is a photo to send as part of a media group.
@@ -1126,10 +1126,10 @@ type InputMediaPhoto struct {
 // InputMediaVideo is a video to send as part of a media group.
 type InputMediaVideo struct {
 	BaseInputMedia
-	Width             int  `json:"width"`
+	Width             int  `json:"width,omitempty"`
-	Height            int  `json:"height"`
+	Height            int  `json:"height,omitempty"`
-	Duration          int  `json:"duration"`
+	Duration          int  `json:"duration,omitempty"`
-	SupportsStreaming bool `json:"supports_streaming"`
+	SupportsStreaming bool `json:"supports_streaming,omitempty"`
 }
 
 // InputMediaAnimation is an animation to send as part of a media group.

types_test.go

@@ -331,3 +331,21 @@ var (
 	_ Chattable = VoiceConfig{}
 	_ Chattable = WebhookConfig{}
 )
+
+// Ensure all Fileable types are correct.
+var (
+	_ Fileable = (*PhotoConfig)(nil)
+	_ Fileable = (*AudioConfig)(nil)
+	_ Fileable = (*DocumentConfig)(nil)
+	_ Fileable = (*StickerConfig)(nil)
+	_ Fileable = (*VideoConfig)(nil)
+	_ Fileable = (*AnimationConfig)(nil)
+	_ Fileable = (*VideoNoteConfig)(nil)
+	_ Fileable = (*VoiceConfig)(nil)
+	_ Fileable = (*SetChatPhotoConfig)(nil)
+	_ Fileable = (*EditMessageMediaConfig)(nil)
+	_ Fileable = (*SetChatPhotoConfig)(nil)
+	_ Fileable = (*UploadStickerConfig)(nil)
+	_ Fileable = (*NewStickerSetConfig)(nil)
+	_ Fileable = (*AddStickerConfig)(nil)
+)