Riot Developer Example App

This project is a consumption example of Riot Games Developer API (RGAPI).

All endpoints requires authentication and there are two ways of authentication:

API Keys

Anyone who signs into the developer portal will automatically be granted an API key that will be associated with their account. Your API key allows you to start using the API immediately, and allows us to generate API usage metrics for your key. See example.

For more information about API Keys read the full docs.

RSO Authentication (OAUTH2)

Some endpoints requires authorization from the user, and for this purpose RGAPI uses oauth2 protocol. See example.

Project Setup

To setup this project locally a few steps are needed, they are:

• Configure environment variables
• Add rule for localhost domain (only for oauth2 authentication)
• Boot Golang server

Configure environment variables

API Key

You can get the API Key after sign in at Riot Games Developer Portal. This token will be used as environment variable RIOT_API_TOKEN.

Get credentials for oauth2

For oauth2 authentication are needed two credentials, they are CLIENT_ID and CLIENT_SECRET and will be used respectively for environment variables RSO_CLIENT_ID and RSO_CLIENT_SECRET.

Contact us if you'd like to request access for oauth2.

Create .env file

Copy file .env.example to a new file named .env.

MacOS and Linux

cp .env.example .env

Windows

copy .env.example .env

Update .env file

Set the environment variables with the credentials created in the last steps. For example:

APP_PORT=3000
RSO_CLIENT_ID=<YOUR-CLIENT-ID>
RSO_CLIENT_SECRET=<YOUR-CLIENT-SECRET>
RIOT_API_TOKEN=<YOUR-RIOT-API-TOKEN>

If you are not going to test oauth2 authentication, leave RSO_CLIENT_ID and RSO_CLIENT_SECRET empty.

Add rule for localhost domain (only for oauth2 authentication)

To use oauth2 authentication redirect flows is needed to match your app hostname with the redirect_uri provided when getting credentials for oauth2.

If you are not going to test oauth2 authentication, go to step Golang.

Windows

Open hosts file C:\Windows\System32\Drivers\etc\hosts
Add your hostname to localhost ip

127.0.0.1  local.exampleapp.com

MacOS and Linux

Open hosts file /etc/hosts
Add your hostname to localhost ip

127.0.0.1  local.exampleapp.com

Linux users will need to edit hosts file as superuser (sudo)

Boot Golang server

Version

You must have golang 1.18 version or higher. To check golang version

go version

Install dependencies

Download module dependencies

go mod download

Boot server

Simply run the following command to start your Golang server

go run main.go

Examples

Summoner overview

Use case

For this example we have a use case of retrieving a summoner's league entries. The expected inputs are summoner's name and region.

The data we want can be retrieved at endpoint /lol/league/v4/entries/by-summoner/{encryptedSummonerId} that returns summoner's league entries and expects a summoner encrypted ID.

With our input we can consume endpoint /lol/summoner/v4/summoners/by-name/{summonerName} and obtain summoner's encrypted ID.

Consuming the APP

After booting server make a request GET localhost:3000/summoners/overview?region={summonerRegion}&name={summonerName}

Available regions are:

• BR1
• EUN1
• EUW1
• JP1
• KR
• LA1
• LA2
• NA1
• OC1
• RU
• TR1

Using curl

curl -X GET "localhost:3000/summoners/overview?region={region}&name={summonerName}"

Using browser

Navigate to localhost:3000/summoners/overview?region={region}&name={summonerName}

Example response

{
    "id": "summonerID",
    "name": "SummonerName",
    "profileIconId": 1,
    "summonerLevel": 10,
    "revisionDate": "2022-01-17T18:14:50-03:00",
    "leagueEntries": [
        {
            "leagueId": "leagueID",
            "queueType": "RANKED_SOLO_5x5",
            "tier": "CHALLENGER",
            "rank": "I",
            "leaguePoints": 1071,
            "wins": 194,
            "losses": 164,
            "hotStreak": true,
            "veteran": true,
            "freshBlood": false,
            "inactive": false
        }
    ]
}

My Account

For this example we will authenticate through RSO (Riot SSO) and request account data by using oauth2 access token.

1. Open the example app with the host you defined
2. Follow the Sign In link

You will be redirected to Riot SSO Login Page. Authenticate using your account credentials.

After login you will be redirected to local app. Click My Account. The app will request /riot/account/v1/accounts/me using an access token of your account.

When following My Account you receive a response with the same structure of this example:

{
    "puuid": "Player Universal Unique ID",
    "gameName": "Game Name",
    "tagLine": "Tag Line"
}

The json values are only examples. For puuid you will receive an encrypted string.

Logout

Go to app home (local.exampleapp.com:3000) and click Logout.

You will be redirect to riot SSO logout flow. If you return to the app home page you will see Sign In link.