node-aws-sign

Simple module to calculate Authorization header for Amazon AWS REST requests.

Simple it is:

const AwsSign = require('aws-sign');
const signer = new AwsSign({
    accessKeyId: 'AKIAIOSFODNN7EXAMPLE',
    secretAccessKey: 'wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY'
});
 
const opts = {
    method: 'PUT',
    host: 'johnsmith.s3.amazonaws.com',
    path: '/photos/puppy.jpg',
    headers: { ... },
    ... // Other request options, ignored by AwsSign.
};
signer.sign(opts);
https.request(opts, ...);

The following keys are mandatory:

• method
• host
• path

Others are optional. A date header (headers.date) will be added for you if it is not already set.

Non-goals

Node.js has no legacy ;-) so there is no need to support some legacy features of Amazon API for older software. I.e. there is no support for path-style bucket access.

x-amz-date substitution is not supported because Node's http module has no problems setting Date header.

Multiple x-amz- keys are not supported. I.e. the following part of the example won't work:

X-Amz-Meta-ReviewedBy: joe@johnsmith.net
X-Amz-Meta-ReviewedBy: jane@johnsmith.net

Use a single header instead:

X-Amz-Meta-ReviewedBy: joe@johnsmith.net,jane@johnsmith.net

Testing

mocha test/

Installation

npm install aws-sign

Versions and changelog

1.x and forward are ES6 based.

I have failed to maintain a proper versioning of this package for all old versions 0.x. The 0.2.1 was an ES6 based version published in 0.x by mistake. It has been deprecated.

Author

Egor Egorov, me@egorfine.com.

License

MIT.