TypeError: arg.replace is not a function

[Differentunic]

Error:

TypeError: arg.replace is not a function
at escapeArg (/var/www/html/node_modules/execa/lib/command.js:18:17)
at /var/www/html/node_modules/execa/lib/command.js:26:46
at Array.map ()
at getEscapedCommand (/var/www/html/node_modules/execa/lib/command.js:26:35)
at execa (/var/www/html/node_modules/execa/index.js:77:25)
at /var/www/html/index.js:25:22
at Layer.handle [as handle_request] (/var/www/html/node_modules/express/lib/router/layer.js:95:5)
at next (/var/www/html/node_modules/express/lib/router/route.js:137:13)
at Route.dispatch (/var/www/html/node_modules/express/lib/router/route.js:112:3)
at Layer.handle [as handle_request] (/var/www/html/node_modules/express/lib/router/layer.js:95:5)

My code:

const subprocess = execa(youtubedl.raw(URL, {
    noWarnings: true,
    noCallHome: true,
    noCheckCertificate: true,
    preferFreeFormats: true,
    youtubeSkipDashManifest: true
  }));
  subprocess.stdout.pipe(process.stdout);

  (async () => {
    const {stdout} = await subprocess;
    console.log('child output:', stdout);
  })();

[Differentunic]

I'm not sure if I am misunderstanding how execa works.

[ehmicky]

Hi @Differentunic,

The first argument of execa() must be a string (the command/binary) and the second argument must be an optional array of arguments. It appears that youtubedl.raw() returns an array, so this does not match how execa() is meant to be called.

The error message does not make this clear though, so I opened #468 to clarify this.