Mapbox MCP Server

import { VersionInfo } from './versionUtils.js'; let isPatched = false; let originalFetch: ( input: string | URL | Request, init?: RequestInit ) => Promise<Response>; export function patchGlobalFetch(versionInfo: VersionInfo): { 'User-Agent': string; } { // Initialize originalFetch if not already done if (!originalFetch) { if ( typeof globalThis !== 'undefined' && typeof globalThis.fetch === 'function' ) { originalFetch = globalThis.fetch; } else if ( typeof global !== 'undefined' && typeof global.fetch === 'function' ) { originalFetch = global.fetch; } else if (typeof fetch === 'function') { originalFetch = fetch; } else { throw new Error('No fetch implementation available'); } } // In test environments, update originalFetch to current global.fetch if it was mocked if ( typeof global !== 'undefined' && typeof global.fetch === 'function' && typeof (global.fetch as any).mockResolvedValue === 'function' ) { originalFetch = global.fetch; } const headers = { 'User-Agent': `${versionInfo.name}/${versionInfo.version} (${versionInfo.branch}, ${versionInfo.tag}, ${versionInfo.sha})` }; if (!isPatched) { const patchedFetch = async function ( input: string | URL | Request, init?: RequestInit ): Promise<Response> { const modifiedInit: RequestInit = { ...init, headers: { ...(init?.headers || {}), ...headers } }; return originalFetch(input, modifiedInit); }; // Patch fetch in the same way we detected it during initialization if ( typeof globalThis !== 'undefined' && typeof globalThis.fetch === 'function' ) { (globalThis as any).fetch = patchedFetch; } else if ( typeof global !== 'undefined' && typeof global.fetch === 'function' ) { global.fetch = patchedFetch; } isPatched = true; } return headers; } export function cleanup() { if (isPatched) { global.fetch = originalFetch; isPatched = false; } }