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🎨 Format of the upload request comments

This commit is contained in:
Maxim Lebedev 2017-12-20 01:38:08 +05:00
parent df26b0bddc
commit d5e2a04158
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1 changed files with 28 additions and 26 deletions
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54
upload.go
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@ -5,9 +5,10 @@ import (
"errors"
"fmt"
"io"
// "io/ioutil"
"mime/multipart"
"net/url"
"os"
// "os"
log "github.com/kirillDanshin/dlog"
json "github.com/pquerna/ffjson/ffjson"
@ -16,39 +17,38 @@ import (
var ErrBadFileType = errors.New("bad file type")
// upload is a helper method which provide are three ways to send files
// (photos, stickers, audio, media, etc.):
// upload is a helper method which provide are three ways to send files (photos, stickers, audio,
// media, etc.):
//
// 1. If the file is already stored somewhere on the Telegram servers, you don't
// need to reupload it: each file object has a file_id field, simply pass this
// file_id as a parameter instead of uploading. There are no limits for files
// sent this way.
// 2. Provide Telegram with an *url.URL for the file to be sent. Telegram will
// download and send the file. 5 MB max size for photos and 20 MB max for other
// types of content.
// 3. Post the file using multipart/form-data in the usual way that files are
// uploaded via the browser. Use path string, []byte or io.Reader for this. 10 MB
// max size for photos, 50 MB for other files.
// 1. If the file is already stored somewhere on the Telegram servers, you don't need to reupload it:
// each file object has a file_id field, simply pass this file_id as a parameter instead of uploading.
// There are no limits for files sent this way.
// 2. Provide Telegram with an *url.URL for the file to be sent. Telegram will download and send the
// file. 5 MB max size for photos and 20 MB max for other types of content.
// 3. Post the file using multipart/form-data in the usual way that files are uploaded via the
// browser. Use []byte or io.Reader for this. 10 MB max size for photos, 50 MB for other files.
//
// Sending by file_id
//
// - It is not possible to change the file type when resending by file_id. I.e.
// a video can't be sent as a photo, a photo can't be sent as a document, etc.
// - It is not possible to change the file type when resending by file_id. I.e. a video can't be sent
// as a photo, a photo can't be sent as a document, etc.
// - It is not possible to resend thumbnails.
// - Resending a photo by file_id will send all of its sizes.
// - file_id is unique for each individual bot and can't be transferred from one
// bot to another.
// - file_id is unique for each individual bot and can't be transferred from one bot to another.
//
// Sending by URL
//
// - When sending by *url.URL the target file must have the correct MIME type
// (e.g., audio/mpeg for sendAudio, etc.).
// - In sendDocument, sending by URL will currently only work for gif, pdf and
// zip files.
// - To use SendVoice, the file must have the type audio/ogg and be no more than
// 1MB in size. 1–20MB voice notes will be sent as files.
// - When sending by *url.URL the target file must have the correct MIME type (e.g., audio/mpeg for
// sendAudio, etc.).
// - In sendDocument, sending by URL will currently only work for gif, pdf and zip files.
// - To use SendVoice, the file must have the type audio/ogg and be no more than 1MB in size. 1–20MB
// voice notes will be sent as files.
// - Other configurations may work but we can't guarantee that they will.
func (bot *Bot) upload(file InputFile, fieldName, fileName, method string, args *http.Args) (*Response, error) {
func (bot *Bot) upload(
file InputFile,
fieldName, fileName, method string,
args *http.Args,
) (*Response, error) {
buffer := bytes.NewBuffer(nil)
multi := multipart.NewWriter(buffer)
@ -96,20 +96,22 @@ func (bot *Bot) upload(file InputFile, fieldName, fileName, method string, args
if err != nil {
return nil, err
}
if _, err = io.Copy(formFile, bytes.NewReader(f)); err != nil {
return nil, err
}
case *url.URL:
case *url.URL: // Send by URL
if err := multi.WriteField(fieldName, f.String()); err != nil {
return nil, err
}
case io.Reader:
case io.Reader: // Upload new
if _, err := multi.CreateFormFile(fieldName, fileName); err != nil {
return nil, err
}
default:
return nil, ErrBadFileType
}
if err := multi.Close(); err != nil {
return nil, err
}