NodeRpcClientImpl

class NodeRpcClientImpl(httpClient: HttpClient, nodeUrl: String = "http://localhost:9944", developmentMode: Boolean = true) : NodeRpcClient

Ktor-based implementation of NodeRpcClient for Midnight node JSON-RPC API.

Connection:

Security:

httpClient

HTTP client for making requests (injectable for testing)

nodeUrl

Node RPC endpoint URL (e.g., "http://localhost:9944")

developmentMode

If true, allows HTTP to localhost (INSECURE - testing only)

Constructors

constructor(nodeUrl: String = "http://localhost:9944", developmentMode: Boolean = true)

Convenience constructor for production use (creates default HTTP client).

constructor(httpClient: HttpClient, nodeUrl: String = "http://localhost:9944", developmentMode: Boolean = true)

open override fun close()

Close the client and release resources.

open suspend override fun getFinalizedHead(): String

Get the hash of the latest finalized block.

The node's runtime version (standard Substrate RPC: state_getRuntimeVersion).

open suspend override fun isHealthy(): Boolean

Check if node is healthy and reachable.

Submit transaction and wait for finalization using WebSocket subscription.

open suspend override fun submitTransaction(serializedTxHex: String): String

Submit a serialized transaction to the Midnight node (fire-and-forget).