Sandeep Joshi

Sandeep Joshi

Mobile Dev and CS Grad student

URLSession - Notes

less than 1 minute read

Published:

The following is a condensed notes from Apple Developer documentation and other sites from internet.

  • URL Loading is performed asynchronously
  • One URLSession can be used repeatedly to create tasks. But separate sessions can be created for different purposes. For example, a new session can be created for each tab in a browser.
  • Each session is associated with a delegate to get periodic updates.
  • Session can be configured to run in background so that any downloads keep continuing even if the app is quit/suspended and is notified of download completion when the app is active again.
  • Data tasks can be used for server requests. They are not supported in background sessions
  • Upload and Download tasks are supported in all sessions

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