Ah, I’ve run into this exact snag before—let’s get you sorted out quickly.

Why You’re Seeing This Error #

Your bucket name thisIsTestBucket190 is violating one of AWS S3’s non-negotiable naming rules: bucket names must be entirely lowercase. The uppercase letters sprinkled throughout your name are directly triggering that InvalidBucketName exception.

Quick Recap of S3 Bucket Naming Rules #

To avoid this (and other) bucket naming headaches down the line, keep these rules top of mind:

• Length must be between 3 and 63 characters
• Only allowed characters: lowercase letters, numbers, hyphens (-), and periods (.)
• Can’t start or end with a hyphen
• No consecutive hyphens
• If you use periods, make sure the name doesn’t resemble a domain (this prevents SSL certificate issues when setting up bucket websites)

Fixing Your Code #

All you need to do is convert your bucket name to all lowercase. Here’s what your corrected code would look like with the AWS SDK for Node.js:

const AWS = require('aws-sdk');
const s3 = new AWS.S3({ region: 'us-east-1' }); // Adjust your region as needed

const createBucketParams = {
  Bucket: 'thisistestbucket190' // Updated to all lowercase
};

s3.createBucket(createBucketParams, (err, data) => {
  if (err) {
    console.error('Error creating bucket:', err);
  } else {
    console.log('Bucket created successfully! Location:', data.Location);
  }
});

Quick Side Note #

If you still hit issues after fixing the name, double-check that your IAM user/role has the s3:CreateBucket permission assigned. But in your case, the uppercase letters in the bucket name are 100% the culprit here.

内容的提问来源于stack exchange，提问作者Nirojan Selvanathan