adapter method
return cached BlockchainAdapter instance.
Implementation
BlockchainAdapter adapter() {
if (_blockfrostAdapter == null) {
final blockfrost = _cachedBlockfrost(
networkId: networkId, authInterceptor: authInterceptor);
_blockfrostAdapter = BlockfrostBlockchainAdapter(
networkId: networkId, blockfrost: blockfrost, projectId: projectId);
}
return _blockfrostAdapter!;
}