jiti

import { createJiti } from "jiti"; import path from "node:path"; import fs from "node:fs/promises"; // Initialize jiti, specifying the current module's URL for resolution context. // In a CommonJS environment, use `__filename` instead of `import.meta.url`. const jiti = createJiti(import.meta.url, { debug: process.env.NODE_ENV === 'development', // Cache directory to speed up subsequent loads cacheDir: path.join(process.cwd(), '.jiti-cache'), }); // Example of importing a TypeScript file with ESM compatibility // For demonstration, we'll create a dummy TS file first. async function runJitiExample() { const dummyTsPath = path.join(__dirname, 'temp-module.ts'); const dummyTsContent = 'export const message = "Hello from Jiti!"; export default { status: "OK" };'; await fs.writeFile(dummyTsPath, dummyTsContent); try { // Import the module. Jiti handles TypeScript transpilation. // Use a generic type to ensure strong typing for the imported module. const mod = await jiti.import<{ message: string; default: { status: string } }>(dummyTsPath); console.log("Named export 'message':", mod.message); // To directly get the default export (common for default-export-only modules) const modDefault = await jiti.import<{ status: string }>(dummyTsPath, { default: true }); console.log("Default export 'status':", modDefault.status); // Jiti can also resolve paths using ESM resolution logic. const resolvedPath = jiti.esmResolve('./temp-module.ts'); console.log("Resolved path for temp-module.ts:", resolvedPath); } catch (error) { console.error("Error running Jiti example:", error); } finally { // Clean up the temporary file. await fs.unlink(dummyTsPath); } } runJitiExample();