getNodeInfo.ts•8.02 kB
import { Tool, ToolResult } from '../types/tool.js';
import { LightningService } from '../services/lightningService.js';
const lightningService = new LightningService();
export const getNodeInfoTool: Tool = {
name: 'ldk_node_info',
description: 'Get current node status and connectivity information',
inputSchema: {
type: 'object',
properties: {}
},
execute: async (args: any): Promise<ToolResult> => {
try {
const nodeInfo = await lightningService.getNodeInfo();
const balance = await lightningService.getBalance();
return {
content: [{
type: 'text',
text: JSON.stringify({
success: true,
nodeInfo: {
nodeId: nodeInfo.nodeId,
alias: nodeInfo.alias,
version: nodeInfo.version,
blockHeight: nodeInfo.blockHeight,
syncedToChain: nodeInfo.syncedToChain,
channels: {
total: nodeInfo.numChannels,
usable: nodeInfo.numUsableChannels
},
balance: {
totalSats: Math.floor(balance.totalMsat / 1000),
spendableSats: Math.floor(balance.spendableMsat / 1000)
},
peers: nodeInfo.numPeers
},
swiftExample: `
// Swift code to display node info in your iOS app
import SwiftUI
import LightningDevKit
struct NodeInfoView: View {
@State private var nodeInfo: NodeInfo?
@State private var isLoading = true
@State private var isSyncing = false
var body: some View {
ScrollView {
VStack(spacing: 20) {
// Node Identity Card
VStack(alignment: .leading, spacing: 12) {
HStack {
Image(systemName: "bolt.circle.fill")
.font(.largeTitle)
.foregroundColor(.orange)
VStack(alignment: .leading) {
Text(nodeInfo?.alias ?? "Lightning Node")
.font(.title2)
.fontWeight(.semibold)
Text(nodeInfo?.nodeId.prefix(16) ?? "")
.font(.caption)
.foregroundColor(.secondary)
.monospaced()
}
Spacer()
}
Divider()
// Sync Status
HStack {
Label(
nodeInfo?.syncedToChain == true ? "Synced" : "Syncing...",
systemImage: nodeInfo?.syncedToChain == true ? "checkmark.circle.fill" : "arrow.triangle.2.circlepath"
)
.foregroundColor(nodeInfo?.syncedToChain == true ? .green : .orange)
Spacer()
Text("Block \\(nodeInfo?.blockHeight ?? 0)")
.font(.caption)
.foregroundColor(.secondary)
}
}
.padding()
.background(Color(UIColor.secondarySystemBackground))
.cornerRadius(12)
// Stats Grid
LazyVGrid(columns: [
GridItem(.flexible()),
GridItem(.flexible())
], spacing: 16) {
StatCard(
title: "Channels",
value: "\\(nodeInfo?.numUsableChannels ?? 0)/\\(nodeInfo?.numChannels ?? 0)",
icon: "link",
color: .blue
)
StatCard(
title: "Peers",
value: "\\(nodeInfo?.numPeers ?? 0)",
icon: "person.2",
color: .green
)
StatCard(
title: "Total Balance",
value: "\\(formatSats(nodeInfo?.totalBalanceSats ?? 0))",
icon: "bitcoinsign.circle",
color: .orange
)
StatCard(
title: "Spendable",
value: "\\(formatSats(nodeInfo?.spendableBalanceSats ?? 0))",
icon: "paperplane",
color: .purple
)
}
// Actions
VStack(spacing: 12) {
Button(action: syncToTip) {
Label("Sync to Chain Tip", systemImage: "arrow.clockwise")
.frame(maxWidth: .infinity)
}
.buttonStyle(.bordered)
.disabled(isSyncing)
Button(action: openChannel) {
Label("Open Channel", systemImage: "plus.circle")
.frame(maxWidth: .infinity)
}
.buttonStyle(.borderedProminent)
}
.padding(.top)
}
.padding()
}
.navigationTitle("Node Info")
.navigationBarTitleDisplayMode(.inline)
.refreshable {
await loadNodeInfo()
}
.task {
await loadNodeInfo()
}
.overlay {
if isLoading {
ProgressView("Loading node info...")
.padding()
.background(Color(UIColor.systemBackground))
.cornerRadius(10)
.shadow(radius: 5)
}
}
}
func loadNodeInfo() async {
isLoading = true
defer { isLoading = false }
// Fetch node info from LDK
let ldkManager = LDKManager.shared
nodeInfo = await ldkManager.getNodeInfo()
}
func syncToTip() {
Task {
isSyncing = true
defer { isSyncing = false }
await LDKManager.shared.syncToChainTip()
await loadNodeInfo()
}
}
func openChannel() {
// Navigate to channel opening view
}
func formatSats(_ sats: Int64) -> String {
let formatter = NumberFormatter()
formatter.numberStyle = .decimal
formatter.groupingSeparator = ","
return formatter.string(from: NSNumber(value: sats)) ?? "0"
}
}
struct StatCard: View {
let title: String
let value: String
let icon: String
let color: Color
var body: some View {
VStack(spacing: 8) {
HStack {
Image(systemName: icon)
.foregroundColor(color)
Spacer()
}
VStack(alignment: .leading, spacing: 4) {
Text(value)
.font(.title3)
.fontWeight(.semibold)
Text(title)
.font(.caption)
.foregroundColor(.secondary)
}
.frame(maxWidth: .infinity, alignment: .leading)
}
.padding()
.background(Color(UIColor.secondarySystemBackground))
.cornerRadius(10)
}
}`.trim()
}, null, 2)
}]
};
} catch (error) {
return {
content: [{
type: 'text',
text: JSON.stringify({
success: false,
error: error instanceof Error ? error.message : 'Unknown error'
}, null, 2)
}],
isError: true
};
}
}
};