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https://github.com/accelbyte/session-dsm-grpc-plugin-csharp


https://github.com/accelbyte/session-dsm-grpc-plugin-csharp

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README 

          
# session-dsm-grpc-plugin-server-csharp



```mermaid

flowchart LR

   subgraph AccelByte Gaming Services

   CL[gRPC Client]

   end

   subgraph Extend Override App

   SV["gRPC Server"]

   end

   CL --- SV

```



`AccelByte Gaming Services` (AGS) features can be customized using 

`Extend Override` apps. An `Extend Override` app is basically a `gRPC server` which 

contains one or more custom functions which can be called by AGS instead of the 

default functions.



## Overview



This repository provides a project template to create an `Extend Override` 

app for `session dsm grpc plugin server` written in `C#`. It includes an example of how the

custom functions can be implemented. It also includes the essential 

`gRPC server` authentication and authorization to ensure security. Additionally, 

it comes with built-in instrumentation for observability, ensuring that metrics, 

traces, and logs are available upon deployment.



You can clone this repository to begin developing your own `Extend Override` 

app for `session dsm grpc plugin server`. Simply modify this project by implementing

your own logic for the custom functions.



## Prerequisites



1. Windows 11 WSL2 or Linux Ubuntu 22.04 or macOS 14+ with the following tools installed.



   a. Bash



      ```

      bash --version



      GNU bash, version 5.1.16(1)-release (x86_64-pc-linux-gnu)

      ...

      ```



   b. Make



      - To install from Ubuntu repository, run: `sudo apt update && sudo apt install make` 



      ```

      make --version



      GNU Make 4.3

      ...

      ```



   c. Docker (Docker Engine v23.0+)



      - To install from Ubuntu repository, run: `sudo apt update && sudo apt install docker.io docker-buildx docker-compose-v2`

      - Add your user to `docker` group: `sudo usermod -aG docker $USER`

      - Log out and log back in so that the changes take effect



      ```

      docker version



      ...

      Server: Docker Desktop

       Engine:

        Version:          24.0.5

      ...

      ```



   d. .NET 8 SDK



      - On Linux Ubuntu:



         To install from the Ubuntu repository, run `sudo apt-get update && sudo apt-get install -y dotnet-sdk-8.0`.



      - On Windows or macOS:



         Follow Microsoft's documentation for installing .NET on [Windows](https://learn.microsoft.com/en-us/dotnet/core/install/windows) or on [macOS](https://learn.microsoft.com/en-us/dotnet/core/install/macos).



         ```

         dotnet --version

         

         8.0.119

         ```



   e. [Postman](https://www.postman.com/)



      - Use binary available [here](https://www.postman.com/downloads/)



   f. [extend-helper-cli](https://github.com/AccelByte/extend-helper-cli)



      - Use the available binary from [extend-helper-cli](https://github.com/AccelByte/extend-helper-cli/releases).



   g. Local tunnel service that has TCP forwarding capability, such as:



      - [Ngrok](https://ngrok.com/)

         

         Need registration for free tier. Please refer to [ngrok documentation](https://ngrok.com/docs/getting-started/) for a quick start.



      - [Pinggy](https://pinggy.io/)



         Free to try without registration. Please refer to [pinggy documentation](https://pinggy.io/docs/) for a quick start.



   > :exclamation: In macOS, you may use [Homebrew](https://brew.sh/) to easily install some of the tools above.



   ```

   git clone https://github.com/AccelByte/session-dsm-grpc-plugin-go.git

   ```



   a. Base URL

   

      - Sample URL for AGS Shared Cloud customers: https://spaceshooter.prod.gamingservices.accelbyte.io

      

   b. [Create a Game Namespace](https://docs.accelbyte.io/gaming-services/services/access/reference/namespaces/manage-your-namespaces/) if you don't have one yet. Keep the `Namespace ID`.



   c. [Create an OAuth Client](https://docs.accelbyte.io/gaming-services/services/access/authorization/manage-access-control-for-applications/#create-an-iam-client) with confidential client type. Keep the `Client ID` and `Client Secret`.



## Setup



To be able to run this app, you will need to follow these setup steps.



1. Create a docker compose `.env` file by copying the content of 

   [.env.template](.env.template) file.



   > :warning: **The host OS environment variables have higher precedence compared to `.env` file variables**: If the variables in `.env` file do not seem to take 

   effect properly, check if there are host OS environment variables with the 

   same name. See documentation about 

   [docker compose environment variables precedence](https://docs.docker.com/compose/how-tos/environment-variables/envvars-precedence/) 

   for more details.



2. Fill in the required environment variables in `.env` file as shown below.



   ```

   AB_BASE_URL=https://prod.gamingservices.accelbyte.io        # Base URL of AccelByte Gaming Services prod environment

   AB_CLIENT_ID='xxxxxxxxxx'                                   # Client ID from the Prerequisites section

   AB_CLIENT_SECRET='xxxxxxxxxx'                               # Client Secret from the Prerequisites section

   PLUGIN_GRPC_SERVER_AUTH_ENABLED=false                       # Enable or disable access token and permission verification

   DS_PROVIDER='DEMO'                                          # Select DS implementation, DEMO, GAMELIFT, or GCP

   

   // AWS Gamelift Config

   AWS_ACCESS_KEY_ID='xxxxxxx'                                 # AWS access key if using gamelift

   AWS_SECRET_ACCESS_KEY='xxxxxx'                              # AWS secret key if using gamelift

   AWS_REGION='us-west-2'                                      # AWS region for gamelift

   GAMELIFT_REGION='us-west-2'                                 # alias of AWS_REGION

      

   // GCP Config

   GCP_SERVICE_ACCOUNT_FILE='./account.json'                   # GCP service account file in json format

	GCP_PROJECT_ID=xxxxx-xxxx                                   # GCP Project ID

   GCP_NETWORK=public                                          # GCP Network type

   GCP_MACHINE_TYPE=e2-micro                                   # GCP intance type

   GCP_REPOSITORY=asia-southeast1-docker.pkg.dev/xxxx/gcpvm    # GCP Repository

   GCP_RETRY=3                                                 # GCP Retry to get instance

   GCP_WAIT_GET_IP=1                                           # GCP wait time to get the instance IP in seconds

   GCP_IMAGE_OPEN_PORT=8080                                    # Dedicated server open port

   ```



For more options, create `src/AccelByte.PluginArch.SessionDsm.Demo.Server/appsettings.Development.json` and fill in the required configuration.



```json

{

  "EnableAuthorization": true,                  // Enable or disable access token and permission check (env var: PLUGIN_GRPC_SERVER_AUTH_ENABLED)

  "RevocationListRefreshPeriod": 60,

  "AccelByte": {

    "BaseUrl": "https://test.accelbyte.io",     // Base URL (env var: AB_BASE_URL)

    "ClientId": "xxxxxxxxxx",                   // Client ID (env var: AB_CLIENT_ID)    

    "ClientSecret": "xxxxxxxxxx",               // Client Secret (env var: AB_CLIENT_SECRET)

    "AppName": "LOOTBOXGRPCSERVICE",

    "TraceIdVersion": "1",

    "Namespace": "xxxxxxxxxx",                  // Namespace ID (env var: AB_NAMESPACE)

    "EnableTraceId": true,

    "EnableUserAgentInfo": true,

    "ResourceName": "SESSIONDSMGRPCSERVICE"

  }

}

```

> :warning: **Environment variable values will override related configuration values in this file**.



3. Access to AccelByte Gaming Services environment.

a. Base URL: https://prod.gamingservices.accelbyte.io/admin



## Building



To build this app, use the following command.



```shell

make build

```



The build output will be available in `.output` directory.



## Running



To (build and) run this app in a container, use the following command.



```shell

docker compose up --build

```



## Testing



### Test in Local Development Environment



The custom functions in this app can be tested locally using [postman](https://www.postman.com/).



1. Run this app by using the command below.



   ```shell

   docker compose up --build

   ```



2. Open `postman`, create a new `gRPC request`, and enter `localhost:6565` as server URL.



3. In `postman`, continue by selecting `CreateGameSession` grpc call method and click `Invoke` button, this will start stream connection to the gRPC server.



4. Still in `postman`, continue sending parameters first to specify number of players in a match by copying sample `json` below and click `Send`.



   ```json

   {

    "client_version": "test",

    "deployment": "test-deployment",

    "game_mode": "test-game",

    "maximum_player": "10",

    "namespace": "testing",

    "requested_region": [

        "us-west-1",

        "us-west-2"

    ],

    "session_data": "testing",

    "session_id": "uuidv4"

   }

   ```



### Test with AccelByte Gaming Services



To test the app, which runs locally with AGS, the `gRPC server` needs to be connected to the internet. To do this without requiring public IP, you can use local tunnel service.



1. Run this app by using command below.



   ```shell

   docker compose up --build

   ```



2. Expose `gRPC server` TCP port 6565 in local development environment to the internet. Simplest way to do this is by using local tunnel service provider.

   - Sign in to [ngrok](https://ngrok.com/) and get your `authtoken` from the ngrok dashboard and set it up in your local environment.

      And, to expose `gRPC server` use following command:

      ```bash

      ngrok tcp 6565

      ```



   - **Or** alternatively, you can use [pinggy](https://pinggy.io/) and use only `ssh` command line to setup simple tunnel.

      Then to expose `gRPC server` use following command:

      ```bash

      ssh -p 443 -o StrictHostKeyChecking=no -o ServerAliveInterval=30 -R0:127.0.0.1:6565 tcp@a.pinggy.io

      ```



   Please take note of the tunnel forwarding URL, e.g., `http://0.tcp.ap.ngrok.io:xxxxx` or `tcp://xxxxx-xxx-xxx-xxx-xxx.a.free.pinggy.link:xxxxx`.



   > :exclamation: You may also use other local tunnel service and different method to expose the gRPC server port (TCP) to the internet.



3. In admin portal go to -> Multiplayer > Matchmaking > Session Configuration. Click on the Add Session Template button. Select the Server configuration to be a DS - Custom. Then, select the Custom URL option and provide the tunnel forwarding URL from step 2.



4. create gamesession or do matchmaking



5. in Sessions and Parties - > check in session detail base on session id -> if ds status available check your server in GCPVM or gamelift



## Deploying



After completing testing, the next step is to deploy your app to `AccelByte Gaming Services`.



1. **Create an Extend Override app**



   If you do not already have one, create a new [Extend Override App](https://docs.accelbyte.io/gaming-services/services/extend/override/session-dedicated-server/get-started-session-dedicated-server/#create-the-extend-app).



   On the **App Detail** page, take note of the following values.

   - `Namespace`

   - `App Name`



2. **Build and Push the Container Image**



   Use [extend-helper-cli](https://github.com/AccelByte/extend-helper-cli) to build and upload the container image.



   ```

   extend-helper-cli image-upload --login --namespace  --app  --image-tag v0.0.1

   ```



   > :warning: Run this command from your project directory. If you are in a different directory, add the `--work-dir ` option to specify the correct path.



3. **Deploy the Image**

   

   On the **App Detail** page:

   - Click **Image Version History**

   - Select the image you just pushed

   - Click **Deploy Image**



## Next Step



Proceed by modifying this `Extend Override` app template to implement your own custom logic. For more details, see [here](https://docs.accelbyte.io/gaming-services/services/extend/override/session-dedicated-server/customize-session-dedicated-server/).