NoSuchBucketPolicy error when trying to generate Bucket Policy - node.js

Question

I'm trying out AWS S3 for the first time and I wrote the following function to generate a bucket policy.
// Load the AWS SDK for Node.js
var AWS = require('aws-sdk');
// Load configuration
AWS.config = new AWS.Config();
AWS.config.accessKeyId = sails.config.accessKeyId;
AWS.config.secretAccessKey = sails.config.secretAccessKey;
AWS.config.region = sails.config.region
// Create S3 object
var s3 = new AWS.S3();
// Defining the required parameters
var params = {
Bucket: "bucket-name-here"
};
s3.getBucketPolicy(params, function(error, date) {
if(error) {
// An error occurred
console.log("Error\n" + error);
return res.json({
message: "Error",
'error': error
});
} else {
// Successful
console.log("Data\n" + date);
return res.json({
message: "Successful",
'data': date
});
}
});
But the response is always NoSuchBucketPolicy: The bucket policy does not exist
I tried uploading a test file into the bucket, listing all buckets and it both worked as expected. What is wrong with the code?

Answer 1

Your code doesn't "generate" a bucket policy... it tries to fetch the existing policy of a bucket. Buckets don't have a policy until you create one, so this error would be normal in that case.
Error Code: NoSuchBucketPolicy
Description: specified bucket does not have a bucket policy.
HTTP Status Code: 404 Not Found
http://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html