AWS Version 4 signature generator
npm install aws4-signatureAWS Version 4 signature generator
``javascript
var aws4_sign = require("aws4-signature");
var signature = aws4_sign(
"wJalrXUtnFEMI/K7MDENG+bPxRfiCYEXAMPLEKEY",
"2011-09-09T12:00:00.000Z",
"us-east-1",
"iam",
"AWS4-HMAC-SHA256\n20110909T233600Z\n20110909/us-east-1/iam/aws4_request\n3511de7e95d28ecd39e9513b642aee07e54f4941150d8df8bf94b328ef7e55e2"
);
// Outputs "ced6826de92d2bdeed8f846f0bf508e8559e98e4b0199114b84c54174deb456c"
console.log(signature);
`
aws4-signature has a single function that returns a hexadecimal encoded signature
`
function aws4_sign(
secret, // Your AWS secret key
date, // The date of the request in any format that "new Date()" can parse
region, // The region that is receiving the request
service, // The service that is receiving the request
string_to_sign // The string to sign
)