execution-stats.ts•1.93 kB
/**
* Static Execution Statistics Resource Handler
*
* This module provides the MCP resource implementation for execution statistics.
*/
import { N8nApiService } from '../../api/n8n-client.js';
import { formatExecutionStats, formatResourceUri } from '../../utils/resource-formatter.js';
import { McpError, ErrorCode } from '../../errors/index.js';
/**
* Get execution statistics resource data
*
* @param apiService n8n API service
* @returns Formatted execution statistics resource data
*/
export async function getExecutionStatsResource(apiService: N8nApiService): Promise<string> {
try {
// Get executions from the API
const executions = await apiService.getExecutions();
// Format the execution statistics
const stats = formatExecutionStats(executions);
// Add metadata about the resource
const result = {
resourceType: 'execution-stats',
...stats,
_links: {
self: formatResourceUri('execution-stats'),
}
};
return JSON.stringify(result, null, 2);
} catch (error) {
console.error('Error fetching execution statistics resource:', error);
throw new McpError(
ErrorCode.InternalError,
`Failed to retrieve execution statistics: ${error instanceof Error ? error.message : 'Unknown error'}`
);
}
}
/**
* Get execution statistics resource URI
*
* @returns Formatted resource URI
*/
export function getExecutionStatsResourceUri(): string {
return formatResourceUri('execution-stats');
}
/**
* Get execution statistics resource metadata
*
* @returns Resource metadata object
*/
export function getExecutionStatsResourceMetadata(): Record<string, any> {
return {
uri: getExecutionStatsResourceUri(),
name: 'n8n Execution Statistics',
mimeType: 'application/json',
description: 'Summary statistics of workflow executions including success rates, average duration, and trends',
};
}