Overview

If you use in-app purchases on Steam, there is some configuration the server needs. This should be done as part of step 9. Configure the Servers for Real Purchase Validation of the basic IAP guide.

Configuration

Steam purchases use the same configuration as Steam player authentication, shown in Implementing Steam Authentication:

Options.base.yaml

Steam:
    EnableSteam: true
    AppId: [Your Steam application ID]
    PublisherAuthenticationKeyPath: [The Steam publisher authentication key created in the Implementing Steam Authentication guide]

Real-money purchases are used in production, and sandbox purchases in other environments. To test real-money purchases also in your development or staging environments, you can set Steam:UseProductionPurchases to true in the appropriate Options.<env>.yaml file.