Digi-ID express plugin
npm install express-digiid bash
npm install express-digiid
`
Usage
` javascript
//initialize express
const api = express();
//initialize body parser
const bodyParser = require("body-parser");
api.use(bodyParser.urlencoded({ extended: false }));
api.use(bodyParser.json());
//initialize express-digiid
const expressDigiId=require('express-digiid');
const callback_url="https://mydomain.com/digiid/callback"; //leave as undefined if should check every POST command
api.use(expressDigiId.express(callback_url));
//handle login request to a specific callback url
app.post('/subdomain/:subdomain',(req,res,next)=>{
if (req.digiid===false) {
/*
* if callback_url is defined this will never happen an error will be returned to the wallet automatically
* if callback_url is undefined then all post commands are processed you need to check if this particular page
* should have been accessed with a valid digiid or not. if a valid Digi-Id is expected execute
*/
return res.status(500).json({error: "Digi-Id Invalid Signature"});
} else {
/*
* req.digiid will be in the format
* {
* hash: hex string containing the pubkeyhash of the Digi-Id address. For databases this is ideal value to store since it is a 20 byte binary value,
* sig: hex signature for the Digi-Id request. Can be safely ignored most of the time,
* address:string address value. should generally be ignored in favour of hash,
* uri: string containing the uri encoded in the Digi-Id QR code. params is usually more useful,
* params: object containing all the parameters that where in the uri. "x" is the most useful parameter since it is the nonce
* paramOrder: array of params in order they where included
* };
* you can do any aditional checks you like here. If successful you should let the wallet know by executing
*/
return res.status(200).json({
address: req.digiid.address,
nonce: req.digiid.params.x
});
}
});
``