No vídeo o feth é importado com require() mas aqui não está funcionando.
node .\cli.js .\arquivos\texto.md validar
internal/modules/cjs/loader.js:1089
throw new ERR_REQUIRE_ESM(filename, parentPath, packageJsonPath);
^
Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: D:\Projects\Prog\Alura\NodeJs-criandoBiblioteca\node_modules\node-fetch\src\index.js
require() of ES modules is not supported.
require() of D:\Projects\Prog\Alura\NodeJs-criandoBiblioteca\node_modules\node-fetch\src\index.js from D:\Projects\Prog\Alura\NodeJs-criandoBiblioteca\http-validation.js is an ES module file as it is a .js file whose nearest parent package.json contains "type": "module" which defines all .js files in that package scope as ES modules.
Instead rename index.js to end in .cjs, change the requiring code to use import(), or remove "type": "module" from D:\Projects\Prog\Alura\NodeJs-criandoBiblioteca\node_modules\node-fetch\package.json.
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1089:13)
at Module.load (internal/modules/cjs/loader.js:937:32)
at Function.Module._load (internal/modules/cjs/loader.js:778:12)
at Module.require (internal/modules/cjs/loader.js:961:19)
at require (internal/modules/cjs/helpers.js:92:18)
at Object.<anonymous> (D:\Projects\Prog\Alura\NodeJs-criandoBiblioteca\http-validation.js:1:15)
at Module._compile (internal/modules/cjs/loader.js:1072:14)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1101:10)
at Module.load (internal/modules/cjs/loader.js:937:32)
at Function.Module._load (internal/modules/cjs/loader.js:778:12) {
code: 'ERR_REQUIRE_ESM'
}