DocumentDB RestAPI AuthHeader

DocDBAuthHeaderWithNode.js

var crypto = require("crypto");
var moment = require("moment");

let masterKey = "<your documentDB read&write key>";
let dateInRfc7231Format = moment().format("ddd, DD MMM YYYY HH:mm:ss");
let dateWithTimeZone = dateInRfc7231Format + " GMT";
console.debug(dateWithTimeZone);
// list all databases
//let result = getAuthorizationTokenUsingMasterKey("GET", "", "dbs", dateWithTimeZone, masterKey);

// list all collections within a db
//let result = getAuthorizationTokenUsingMasterKey("GET", "dbs/demodb", "colls", dateWithTimeZone, masterKey);

// create new collection
//let result = getAuthorizationTokenUsingMasterKey("POST", "dbs/demodb", "colls", dateWithTimeZone, masterKey);

// list all documents
//let result = getAuthorizationTokenUsingMasterKey("GET", "dbs/demodb/colls/student", "docs", dateWithTimeZone, masterKey);

let result = getAuthorizationTokenUsingMasterKey("POST", "dbs/demodb/colls/student", "docs", dateWithTimeZone, masterKey);


console.debug(result);

function getAuthorizationTokenUsingMasterKey(verb, resourceId, resourceType, date, masterKey) {  
    var key = new Buffer(masterKey, "base64");  

    var text = (verb || "").toLowerCase() + "\n" +   
               (resourceType || "").toLowerCase() + "\n" +   
               (resourceId || "") + "\n" +   
               (date || "").toLowerCase() + "\n" +   
               "" + "\n";

    var body = new Buffer(text, "utf8");  
    var signature = crypto.createHmac("sha256", key).update(body).digest("base64");
    var MasterToken = "master";  
    var TokenVersion = "1.0";  

    return encodeURIComponent("type=" + MasterToken + "&ver=" + TokenVersion + "&sig=" + signature);  
}

Hey, please pull changes from my fork of this gist, it's really important to make the date in UTC, otherwise it will differ from the server time and you'll not be authorized :)

Can I 👍 the feedback from @ljaniszewski ? It was an easy enough fix but would be great if this worked directly for folks who's clocks aren't set to UTC by default. :-)