How to determine if object exists AWS S3 Node.JS sdk

Question

I need to check if a file exists using AWS SDK. Here is what I\'m doing:

var params = {
    Bucket: config.get(\'s3bucket\'),
    Key: path
};

s3.getSignedU         


        

Answer 1

The simplest solution without try/catch block.

const exists = await s3
  .headObject({
    Bucket: S3_BUCKET_NAME,
    Key: s3Key,
  })
  .promise()
  .then(
    () => true,
    err => {
      if (err.code === 'NotFound') {
        return false;
      }
      throw err;
    }
  );