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Low Level Design (LLD) Coding

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Design (LLD) Internet Download Manager like IDM - Machine Coding Interview

Subhahu Jain's photo
Subhahu Jain
Jan 14, 2025·

1 min read

Table of contents

Feature Requirements

  1. Download File: The system should support downloading a file from a given URL using HTTP/HTTPS protocols.

  2. Segmented Downloading: Divide a file into multiple segments and download them in parallel for faster speed.

  3. Pause and Resume: Support pausing downloads and resuming them later without re-downloading completed parts.

  4. Cancel Download: Provide an option to cancel ongoing downloads and clean up associated resources.

  5. Concurrent File Downloads: Allow multiple files to be downloaded simultaneously, with a limit on the maximum concurrent downloads.

  6. Retry on Failure: Implement automatic retry logic for failed downloads due to network errors, with a configurable retry count.

  7. Progress Monitoring: Provide real-time progress updates for each file and each segment being downloaded.

  8. File Integrity Check: Verify the integrity of the downloaded file using checksum validation or other mechanisms.

  9. File Storage: Save files to a user-specified directory with custom file names, and ensure no data corruption occurs.

Solution

We will cover this in our course, this will be visible by 20 January to paid User.

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