@nic0xflamel/lunarcrush-mcp-server/bin/src/init-server.js

MCP server for the LunarCrush API (Enterprise)

import fs from 'node:fs';
import { MCPProxy } from './openapi-mcp-server/mcp/proxy.js';
// console.log('[MCP Server Log] init-server.ts module loaded.');
export class ValidationError extends Error {
    constructor(errors) {
        super('OpenAPI validation failed');
        this.errors = errors;
        this.name = 'ValidationError';
    }
}
async function loadOpenApiSpec(specPath, baseUrl) {
    // console.log(`[MCP Server Log] loadOpenApiSpec called with path: ${specPath}, baseUrl: ${baseUrl ?? 'undefined'}`);
    let rawSpec;
    try {
        // console.log(`[MCP Server Log] Attempting to read spec file at: ${specPath}`);
        rawSpec = fs.readFileSync(specPath, 'utf-8');
        // console.log('[MCP Server Log] Spec file read successfully.');
    }
    catch (error) {
        console.error(`[MCP Server Log] Failed to read OpenAPI specification file: ${error.message}`);
        console.error(`[MCP Server Log] Intended spec path was: ${specPath}`);
        process.exit(1);
    }
    // Parse and validate the OpenApi Spec
    try {
        console.log('[MCP Server Log] Parsing JSON spec...');
        const parsed = JSON.parse(rawSpec);
        console.log('[MCP Server Log] JSON parsed successfully.');
        // Override baseUrl if specified.
        if (baseUrl) {
            console.log(`[MCP Server Log] Overriding baseUrl in spec to: ${baseUrl}`);
            if (parsed.servers && parsed.servers[0]) {
                parsed.servers[0].url = baseUrl;
            }
            else {
                console.warn('[MCP Server Log] Cannot override baseUrl: spec.servers[0] is not defined.');
            }
        }
        console.log('[MCP Server Log] Spec loaded and potentially modified.');
        return parsed;
    }
    catch (error) {
        if (error instanceof ValidationError) {
            console.error('[MCP Server Log] OpenAPI Validation Error:', error.errors);
            throw error;
        }
        console.error('[MCP Server Log] Failed to parse OpenAPI spec JSON:', error.message);
        process.exit(1);
    }
}
export async function initProxy(specPath, baseUrl) {
    console.log('[MCP Server Log] initProxy called.');
    console.log('[MCP Server Log] Loading OpenAPI spec...');
    const openApiSpec = await loadOpenApiSpec(specPath, baseUrl);
    console.log('[MCP Server Log] OpenAPI spec loaded, creating MCPProxy instance...');
    const proxy = new MCPProxy('LunarCrush API', openApiSpec);
    console.log('[MCP Server Log] MCPProxy instance created.');
    return proxy;
}
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