How do I create a "reedem code" system?

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- rodrigorhardt
- - Joined 7 Dec, 2018
  - 9 topics • 22 posts
- 1
- 26 Apr, 2022
- Quote
Hi everyone

Basically, I want to create a one-time-only code that the player could active to reedem some in-game bonus. After someone use the code, it cannot be used by anyone else.

Any clue on how to do that?

Thank you in advance :)
Tagged:

code
create
online
server
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- WackyToaster
- - Joined 18 Feb, 2014
  - 50 topics • 1,536 posts
- 1
- 26 Apr, 2022
- Quote
Store the code online in a database (ideally hashed).

User sends a request to the database (AJAX) and if the code is found in the database and unused the user gets the reward and the code is marked as used. If the code is marked as used or not found, show an error.

That‘s the basic idea.