bfx-facs-auth-google

Example configuration

{
  "a0": {
    "google" : {
      "clientId": "legacy-web-client-id",
      "clientSecret": "legacy-web-client-secret",
      "redirectUris": {
        "sso_auth": "https://web.example.com/auth/callback"
      },
      "mobile": {
        "android": {
          "clientId": "android-prod-client-id",
        },
        "ios": {
          "clientId": "ios-prod-client-id",
        }
      }
    },
    "ADM_USERS" : [
      {
        "email": "admL1@bitfinex.com",
        "password": "example123",
        "level": 1
      },
      {
        "email": "admL2@bitfinex.com",
        "password": "example123",
        "level": 2
      },
      {
        "email": "google@bitfinex.com",
        "password": false,
        "level": 0
      }
    ]
  }
}

Selecting the right client

• Security: Token aud (audience) is the source of truth - clientKey is just a hint
• clientKey (optional) can be sent by frontend/mobile to indicate which client to use (e.g. androidProd)
• The backend validates the Google token's aud field and maps it to a configured client ID
• If clientKey is provided, it must match the token's aud - otherwise request is rejected
• Resolution order: aud match → clientKey → webClient (from root google.clientId)