Telegram api. Get all uploaded photos by media_group_id

Question

I send to my telegram bot a few photos as group. How I can get the file_id all of my uploaded photos?

I use webhooks, but response is not contain any data about all photos, just some data about last uploaded photo and media_group_id. How I can get all file_id's of my uploaded group photos

response:

Answer 1

The Telegram Bot API does not give to your web-hook any reliable information about the order of each item in a media group. https://core.telegram.org/bots/api#message

Suggestions:

1. If bot is in a private chat, save the incoming file_id against their media_group_id. Whenever media_group_id changes you would have all you need to use. Engage the user in some other way so that you can quickly determine the media_group_id change and respond quickly from that processing.

2. If bot is in a group chat, save incoming file_id against the users id as well as media_group_id and similarly monitor changes to media_group_id and user id to take action.

When a solution starts getting too complex for my liking, I prefer to go back to the basic reason for my need and perhaps find out that I do not need to do something an API doesn't afford like "Get all uploaded photos by media_group_id". Maybe I can just process them individually as the updates stream in.

Tip: If the media group has a caption and you only care about the first media item in the group, then monitoring the media_group_id and caption of an incoming message should be sufficient.

if(message.caption != null && message.media_group_id != null){ // first item in new group received }