Retrieve Portfolio by ID

curl --request GET \
  --url https://api.copper.co/platform/portfolios/{portfolioId}

{
  "createdAt": "1617235200000",
  "createdBy": "<string>",
  "extra": {
    "baseCurrency": "<string>",
    "clearLoopDelegationsBlocked": true,
    "clearLoopPortfolioId": "<string>",
    "clearLoopUnDelegationsBlocked": true,
    "clientAccountId": "<string>",
    "customerId": "<string>",
    "exchange": "okex",
    "externalAccountId": "<string>",
    "parentPortfolioId": "<string>",
    "quoteCurrency": "<string>",
    "showWalletBalance": "real",
    "usdWithdrawalLimit": "<string>"
  },
  "isActive": true,
  "organizationId": "1fa95ae7-5f74-4258-a4c6-687b39d7941d",
  "portfolioDescription": "My portfolio description",
  "portfolioId": "<string>",
  "portfolioName": "My portfolio",
  "portfolioType": "custody",
  "status": "active",
  "updatedAt": "1617235200000",
  "updatedBy": "<string>"
}