Investigate using `PutObjectRequest.html#ifNoneMatch`

[steve-todorov]

Task Description

In previous version of the AWS SDK v2 it was not possible to use a single request to put an object if the key did not exist.
With version 2.28+ you can use PutObjectRequest.html#ifNoneMatch which would return a non 200 status code when there is an existing key.

If this works out it would improve the performance of the library as it would not be doing:

1. Head request to check if the object exists
2. Put request to actually add the object

Instead we'll be doing just one PUT request and handle the status code.

Tasks

The following tasks will need to be carried out:

• Research how this works.
• Investigate what internal changes will be required.
• Implement a solution.
• Test it out.

Task Relationships

This task:

• Is a sub-task of: #
• Depends on: #
• Is a follow-up of: #
• Relates to: #

Useful Links

• PutObjectRequest.html#ifNoneMatch

Help

• Our chat channel
• Points of contact:
  • @carlspring
  • @steve-todorov