How to Cancel a Pyrogram Upload with an Inline Button

Описание: Learn how to effectively cancel an ongoing upload in Pyrogram using an inline button, along with step-by-step explanations for better understanding.
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Introduction

When working with file uploads, especially in a dynamic environment like chat applications, users might want to stop an ongoing upload for various reasons. If you're using the Pyrogram library for building Telegram bots, you might encounter situations where users need the ability to cancel their upload. In this post, we will explore how to implement this functionality using an inline button.

Problem Overview

In the initial setup, a class called uploader is used for managing uploads using both Pyrogram and Telethon clients. However, when the cancel button is clicked, the upload does not stop as expected. This guide aims to identify the problem and provide an effective solution that works seamlessly.

Solution Steps

To effectively allow users to cancel their uploads, we'll make modifications to the uploader class. Let's break down the changes needed.

Modifications to the uploader Class

Step 1: Update the Initialization

The first step is initializing a unique callback data for the cancel button in the constructor of the uploader class.

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Handling the Upload Process

In the start method, we handle the upload process and check if the cancellation flag (is_cancelled) is set:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Implementing the Progress Handler

In the progress handler, we will check if the upload is cancelled. If so, invoke the stop transmission method.

[[See Video to Reveal this Text or Code Snippet]]

Step 4: Adding the Inline Button and Callback to Cancel the Upload

Within the progress method, you must provide a callback function when the cancel button is pressed. This ensures that the button interacts with the class instance properly.

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Implementing a cancel feature allows users to have control over their uploads, enhancing the user experience in your application. The outlined steps will guide you through the integration of this feature with Pyrogram effortlessly.

Feel free to experiment with these modifications and adapt them according to your bot's specific requirements. By following this guide, you can ensure that your users can cancel uploads accurately and efficiently.

We hope this article helps you create a better experience when working with file uploads in your Telegram bot!