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Resolved Server-side support for managing player economies

Discussion in 'Economy' started by MiTschMR, Feb 8, 2024.

  1. MiTschMR

    MiTschMR

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    I am currently working on my backend for a new game I am developing and stumbled upon the fairly lacking API for service accounts in regards of managing player resources, their inventory, economy etc: https://services.docs.unity.com/economy-admin/v2/

    In the roadmap is a card for server authoritative economy. What is the current state of this, is it nearly done, could be tested, not yet started or what?

    I would very much like to be able to have a background worker job that goes through resource transfers (like sending wood, stone etc.to other players) and adds the resources to the players once the transfer has completed. If I made it on the client side, then the client would need to be running all the time during the transfer to invoke the cloud code command for it - not feasible at all, that's why I want to do it on the server side.

    Edit: As it is always with cases like this... I was not aware that the cloud code modules could be called by a service account. This is a workaround I can use, though it would still be great to have the client economy API available for service account usage as well.
     
    Last edited: Feb 8, 2024
  2. GabKBelmonte

    GabKBelmonte

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    Hey,
    We've created this experimental package for this purpose: https://forum.unity.com/threads/ugs-api-experimental-package-release.1543304/

    It contains a pretty raw dump of all existing APIs including the service account ones.

    Of course, using the service accounts should only happen from a dedicated server or some other backend, what did you have in mind?

    EDIT: you can also use access control to prevent players from hitting economy endpoints - https://docs.unity.com/ugs/en-us/manual/overview/manual/access-control



    Cheers,

    cc: @erickb_unity
     
    Last edited: Feb 13, 2024
  3. anthonylord

    anthonylord

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  4. MiTschMR

    MiTschMR

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    My backend is an ASP.Net Core one with .Net Aspire for containerization, database connection management etc., not a dedicated server from inside Unity, so the experimental package is not usable there.

    What I wonder here is why the services docs say 'Client' authentication should be used. To me this means it needs to be an authenticated user using the Authentication Service, not a service account. There are services like Cloud Code which explicitly state that one can use client and service account authentication. What is it now?
     
  5. erickb_unity

    erickb_unity

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    The client services docs for client api (https://services.docs.unity.com/economy/index.html) is not properly listing all supported authorization schemes. We reported this to the team to fix this

    You can use a c# api generator with the open api spec to generate something that can be used in your ASP .net backend.
     
    Arnaud_Gorain and MiTschMR like this.
  6. GabKBelmonte

    GabKBelmonte

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    You have the option of using a NuGet package:
    https://www.nuget.org/packages/Com.Unity.Services.CloudCode.Apis
    with the sever authentication or generate a version yourself.

    Here's how:


    First download the open API spec generator: https://openapi-generator.tech/docs/installation (Also need java if its not installed)
    Second, download the economy specs: https://services.docs.unity.com/economy/v2/ (https://services.docs.unity.com/specs/v2/65636f6e6f6d79.yaml) as "economy-client.yaml"

    Third, save this as config.yaml:

    Code (CSharp):
    1. generatorName: csharp
    2. generatorName: csharp
    3. packageName: Unity.Services.Client.EconomyApi.Generated
    4. packageVersion: "2.0.0"
    5. inputSpec: economy-client.yaml
    6. outputDir: out2
    7.  
    At this point your directory should have 3 files:
    * config.yaml
    * openapi-generator-cli.jar
    * economy-client.yaml

    Then, run the following
    Code (CSharp):
    1.  
    2. java -jar openapi-generator-cli.jar generate -c config.yaml
    3.  
    This will create a C# solution from the specs you should be able to use.

    attached was my output.
     

    Attached Files:

    • out.zip
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      3.3 MB
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    Last edited: Feb 15, 2024
  7. GabKBelmonte

    GabKBelmonte

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  8. MiTschMR

    MiTschMR

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    Thanks GabKBelmonte, I decided to work around it using exactly this Cloud Code nuget package to set the economy balances etc. I marked the thread as resolved.
     
  9. GabKBelmonte

    GabKBelmonte

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    I think I wouldnt consider that as a workaround, it is an official package. We do have a bug in the economy doc regarding the authentication it supports.

    EDIT: to clarify, you can use this NuGet from any ASP.NET server, it doesnt have to run on CloudCode
     
    Last edited: Feb 16, 2024
  10. GabKBelmonte

    GabKBelmonte

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    to clarify, you can use this NuGet from any ASP.NET server, it doesnt have to run on CloudCode
     
  11. MiTschMR

    MiTschMR

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    The end result needs to be compiled to a module and deployed there or not? How else would I get the service token, context etc. for calling the endpoint?

    Anyways, I very much appreciate your helpfulness and have found a suitable way for me to continue :).
     
  12. GabKBelmonte

    GabKBelmonte

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    You should be able to get the token by hitting the right endpoint from the dedicated server hosted the Unity infra (GSH):
    `GET http://localhost:8086/v4/token`

    Seems like a case where our doc could be more explicit.

    If you're hosting with your own provider, you could use a service account, and create a token from that.

    Edit: I'm also adding the info for completeness, maybe someone else will find it useful if they're hosting on their own stack
     
    Last edited: Feb 20, 2024