Problem using webwrite to send image in telegram API

Question

Abolfazl Nejatian 2021-5-7

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/824005-problem-using-webwrite-to-send-image-in-telegram-api

评论： Life is Wonderful 2021-6-29

采纳的回答： Kojiro Saito

在 MATLAB Online 中打开

Hey everyone,

i need to send some messages with image throuout the REST API of telegram.

here is my code for text sending, and it works correctly.

token = '1769425585:AAGPOrIaLTKYr9THQDkehlwrjdxfiJxHNuw';
requestType = 'sendMessage?';
id = 54573663;
url = ['https://api.telegram.org/bot' token '/' requestType  'chat_id=' num2str(id) '&text=' msg];
options = weboptions('ContentType','json','UserAgent','Abolfazl','RequestMethod','post','ArrayFormat','json');
resp
onse = webwrite(url,options);

but the problem is with regard to sending photos

here is the python code for photo sending.

the code uses a dictionary for the photo section but I don't know how to convert it to the Matlab code.

here is the python code,

import requests
import json
bot_token = 'BOT TOKEN'
chat_id = "CHAT ID"
file = r"C:\Users\name\OneDrive\Desktop\Capture.PNG"
files = {
    'photo': open(file, 'rb')
}
message = ('https://api.telegram.org/bot'+ bot_token + '/sendPhoto?chat_id=' 
           + chat_id)
send = requests.post(message, files = files)

I will appreciate your help.

kind regards,

Abolfazl Nejatian

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Answer 1

Kojiro Saito 2021-5-11

4
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/824005-problem-using-webwrite-to-send-image-in-telegram-api#answer_696785

在 MATLAB Online 中打开

There are MATLAB codes for Telegram Bot APIs.

[File Exchange] Telegram Bot Toolbox API

In this URL, sendPhoto function in telegram_bot.m is very helpful for your case.

I've changed the code so that it fits you as below.

bot_token = "XXX";
chat_id = "XXX";
url = "https://api.telegram.org/bot" + bot_token + "/sendPhoto?chat_id=" + chat_id;
photoname = 'XXX.png';
% Create file provider
fileProvider = matlab.net.http.io.FileProvider(photoname);
% Set media type to multipart/form-data 
mediaType = matlab.net.http.MediaType('multipart/form-data');
% Set HTTP header
header = matlab.net.http.field.AcceptField(mediaType);
% Crete multipart form provider
formProvider = matlab.net.http.io.MultipartFormProvider('photo', fileProvider);
% Create HTTP request message
request = matlab.net.http.RequestMessage(matlab.net.http.RequestMethod.POST, header, formProvider);
% Set HTTP options and enable SavePayload for debugging
options =  matlab.net.http.HTTPOptions('SavePayload', true); 
% Send HTTP request
resp = request.send(url, options);
% Get result
if resp.StatusCode == 200
    disp('Uploading is successful!')
    response = resp.Body.Data;
end