Checking file's existence by name in a GCS bucket with Node.js

Question

I'd like to know if Google Cloud Storage provides an efficient way of checking if a file with a given name exists in a given bucket with node.js. A method such as bucket.fileExists('someName') would be ideal. I apologize if there's an obvious answer. Any constructive feedback would be greatly appreciated.

Solution

They added the file.exists() method.

const fileExists = _=>{
    return file.exists().then((data)=>{ console.log(data[0]); });
}

fileExists();
//logs a boolean to the console;
//true if the file exists;
//false if the file doesn't exist.