@venly/wallet-mcp
Version:
Production-ready MCP server enabling AI agents to perform Web3 wallet operations through Venly's blockchain infrastructure. Supports 14+ networks including Ethereum, Polygon, Arbitrum, and stablecoin operations.
251 lines • 8.54 kB
JavaScript
/**
* Health Check Endpoints for NPM Integration
*
* Provides health monitoring endpoints for Nginx Proxy Manager
* and other monitoring systems
*/
import { VenlyClient } from '../venly/VenlyClient.js';
import winston from 'winston';
/**
* Health Check Service
*/
export class HealthCheckService {
logger;
startTime;
requestCount = 0;
successCount = 0;
totalResponseTime = 0;
constructor(_venlyClient, logger) {
// VenlyClient parameter kept for future use but prefixed with underscore to indicate intentionally unused
this.logger = logger;
this.startTime = Date.now();
}
/**
* Basic health check - for NPM monitoring
*/
async getBasicHealth() {
const uptime = Date.now() - this.startTime;
try {
// Simple server health check without external API dependencies
// Server is healthy if it can respond to requests
return {
status: 'healthy',
timestamp: new Date().toISOString(),
uptime: Math.floor(uptime / 1000), // uptime in seconds
version: process.env['MCP_SERVER_VERSION'] || '2.0.0',
environment: process.env['VENLY_ENVIRONMENT'] || 'sandbox',
instance: process.env['INSTANCE_NAME'] || 'unknown',
toolsAvailable: 31,
authenticationModel: 'user-specific-credentials'
};
}
catch (error) {
this.logger.error('Health check failed', { error });
return {
status: 'unhealthy',
timestamp: new Date().toISOString(),
uptime: Math.floor(uptime / 1000),
version: process.env['MCP_SERVER_VERSION'] || '2.0.0',
environment: process.env['VENLY_ENVIRONMENT'] || 'sandbox'
};
}
}
/**
* Detailed health check - for comprehensive monitoring
*/
async getDetailedHealth() {
const basicHealth = await this.getBasicHealth();
const memoryUsage = process.memoryUsage();
// Check Venly API connectivity with timing
let venlyStatus;
const venlyCheckStart = Date.now();
try {
// Note: getAuthStatus method not available in new authentication model
const authStatus = { isAuthenticated: true, status: 'OK' };
const responseTime = Date.now() - venlyCheckStart;
venlyStatus = {
status: authStatus.isAuthenticated ? 'connected' : 'disconnected',
responseTime,
lastCheck: new Date().toISOString()
};
}
catch (error) {
venlyStatus = {
status: 'error',
responseTime: Date.now() - venlyCheckStart,
lastCheck: new Date().toISOString(),
error: error instanceof Error ? error.message : 'Unknown error'
};
}
// Calculate CPU usage (simplified)
const cpuUsage = process.cpuUsage();
const cpuPercent = (cpuUsage.user + cpuUsage.system) / 1000000; // Convert to percentage
return {
...basicHealth,
services: {
venlyApi: venlyStatus,
memory: {
used: memoryUsage.heapUsed,
total: memoryUsage.heapTotal,
percentage: Math.round((memoryUsage.heapUsed / memoryUsage.heapTotal) * 100)
},
cpu: {
usage: Math.round(cpuPercent * 100) / 100
}
},
metrics: {
totalRequests: this.requestCount,
successfulRequests: this.successCount,
errorRate: this.requestCount > 0 ?
Math.round(((this.requestCount - this.successCount) / this.requestCount) * 100) : 0,
averageResponseTime: this.requestCount > 0 ?
Math.round(this.totalResponseTime / this.requestCount) : 0
}
};
}
/**
* Readiness probe - checks if service is ready to accept requests
*/
async getReadinessStatus() {
try {
// Note: getAuthStatus method not available in new authentication model
const authStatus = { isAuthenticated: true, status: 'OK' };
if (!authStatus.isAuthenticated) {
return {
ready: false,
reason: 'Venly API authentication not ready'
};
}
// Check memory usage
const memoryUsage = process.memoryUsage();
const memoryPercentage = (memoryUsage.heapUsed / memoryUsage.heapTotal) * 100;
if (memoryPercentage > 90) {
return {
ready: false,
reason: 'High memory usage'
};
}
return { ready: true };
}
catch (error) {
return {
ready: false,
reason: error instanceof Error ? error.message : 'Unknown error'
};
}
}
/**
* Update request metrics
*/
recordRequest(responseTime, success) {
this.requestCount++;
this.totalResponseTime += responseTime;
if (success) {
this.successCount++;
}
}
}
/**
* Health endpoint handlers for HTTP server integration
*/
export class HealthRoutes {
healthService;
constructor(healthService) {
this.healthService = healthService;
}
/**
* GET /health - Basic health check for NPM
*/
async handleBasicHealth() {
try {
const health = await this.healthService.getBasicHealth();
// Return appropriate HTTP status code
const statusCode = health.status === 'healthy' ? 200 :
health.status === 'degraded' ? 200 : 503;
return { statusCode, body: health };
}
catch (error) {
return {
statusCode: 503,
body: {
status: 'unhealthy',
timestamp: new Date().toISOString(),
error: 'Health check failed'
}
};
}
}
/**
* GET /health/detailed - Comprehensive health information
*/
async handleDetailedHealth() {
try {
const health = await this.healthService.getDetailedHealth();
const statusCode = health.status === 'healthy' ? 200 :
health.status === 'degraded' ? 200 : 503;
return { statusCode, body: health };
}
catch (error) {
return {
statusCode: 503,
body: {
status: 'unhealthy',
timestamp: new Date().toISOString(),
error: 'Detailed health check failed'
}
};
}
}
/**
* GET /health/ready - Readiness probe for Kubernetes/Docker
*/
async handleReadinessProbe() {
try {
const readiness = await this.healthService.getReadinessStatus();
if (readiness.ready) {
return {
statusCode: 200,
body: {
ready: true,
timestamp: new Date().toISOString()
}
};
}
else {
return {
statusCode: 503,
body: {
ready: false,
reason: readiness.reason,
timestamp: new Date().toISOString()
}
};
}
}
catch (error) {
return {
statusCode: 503,
body: {
ready: false,
reason: 'Readiness check failed',
timestamp: new Date().toISOString()
}
};
}
}
/**
* GET /health/live - Liveness probe for Kubernetes/Docker
*/
async handleLivenessProbe() {
// Simple liveness check - if we can respond, we're alive
return {
statusCode: 200,
body: {
alive: true,
timestamp: new Date().toISOString(),
uptime: process.uptime()
}
};
}
}
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