curl --request POST \
  --url https://sandbox.api.btdx.io/sessions \
  --header 'Content-Type: application/json' \
  --data '
{
  "appId": "ANAPPID",
  "walletId": "OPTIONAL-ONLY-IF-APIKEY-IS-TYPE-WALLET",
  "apiKey": "password1234"
}
'

{
  "_meta": {
    "_primary_document": "sessions",
    "_count": 1
  },
  "sessions": [
    {
      "accessToken": "eyJ0eXAiOiJh....bBDA",
      "refreshToken": "eyJ0eXAiOiJy....uHCQ",
      "accessExpiresAt": "2099-01-01T23:59:59.999Z",
      "refreshExpiresAt": "2099-01-01T23:59:59.999Z"
    }
  ]
}