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s3_setbucketpolicy.js

s3_setbucketpolicy.js demonstrates how to set/replace an Amazon S3 bucket policy.

// Copyright 2010-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. // Licensed under the Apache-2.0 License on an "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND. // ABOUT THIS NODE.JS SAMPLE: This sample is part of the SDK for JavaScript Developer Guide topic at // https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/s3-example-bucket-policies.html // Load the AWS SDK for Node.js var AWS = require('aws-sdk'); // Set the region AWS.config.update({region: 'REGION'}); // Create S3 service object s3 = new AWS.S3({apiVersion: '2006-03-01'}); var readOnlyAnonUserPolicy = { Version: "2012-10-17", Statement: [ { Sid: "AddPerm", Effect: "Allow", Principal: "*", Action: [ "s3:GetObject" ], Resource: [ "" ] } ] }; // create selected bucket resource string for bucket policy var bucketResource = "arn:aws:s3:::" + process.argv[2] + "/*"; readOnlyAnonUserPolicy.Statement[0]. Resource[0] = bucketResource; // convert policy JSON into string and assign into params var bucketPolicyParams = {Bucket: process.argv[2], Policy: JSON.stringify(readOnlyAnonUserPolicy)}; // set the new policy on the selected bucket s3.putBucketPolicy(bucketPolicyParams, function(err, data) { if (err) { // display error message console.log("Error", err); } else { console.log("Success", data); } });

Sample Details

Service: s3

Last tested: 2018-06-02

Author: daviddeyo

Type: full-example

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