An Express Keepie Client

Keepie is a protocol for services to share secrets securely and this is a client to make it a little easier for the express framework.

The point of keepie is that you make a call to a secret keeper, specifying a url for it to return the secret to if it authorizes you.

The secret keeper only returns secrets to a url that it has been told to authorize.

So if you want to use a secret you have to request it... and then wait for it to arrive on another url that you're hosting.

So the general form for keepie client is this:

const keepieClient = require("keepie-client");
const app = express();

const keepie = keepieClient.clientMiddleware();

app.post("/receive-secret", keepie.receiver);

app.get("/", keepie.auth({
            receiptPath: "/receive-secret",
            secretKeeperUrl: "http://secretkeeper/keepie-request"
        }), (req, res) => {
            const {service, secret} = req.keepieAuth;
            res.send("<p>authorized!</p>");
});

So:

• you have to create the middleware
• you must setup a route for every receipt url that you want to receive a secret on
• you can use the keepieMiddleware.auth middleware to request and wait for the keepie auth
• when the auth arrives the request gets the service and the secret

This is a conveniant way to deal with programming against Keepie.