forSellingAsset method Null safety

OffersRequestBuilder forSellingAsset(
  1. Asset asset
)

Returns all selling buying an asset. See Offers

Implementation

OffersRequestBuilder forSellingAsset(Asset asset) {
  queryParameters.addAll({"selling_asset_type": asset.type});
  if (asset is AssetTypeCreditAlphaNum) {
    AssetTypeCreditAlphaNum creditAlphaNumAsset = asset;
    queryParameters.addAll({"selling_asset_code": creditAlphaNumAsset.code});
    queryParameters.addAll({"selling_asset_issuer": creditAlphaNumAsset.issuerId});
  }
  return this;
}