To connect AWS with an outside application, Cognito is going to be a good solution. It will let you generate an OpenID token using the AWS Node SDK and your secret keys in your backend, that you can then use with the AWS JavaScript SDK and WebIdentityCredentials in your client.
Note that I'm unfamiliar with your specific plugin/tool, but this much will at least get you the OpenID and in my work it does let me connect using WebIdentityCredentials, which I imagine is what they are using.
- Configure Cognito on AWS
Setup on Cognito is fairly easy - it is more or less a walkthrough. It does involve configuring IAM rules on AWS, though. How to set this up is pretty project specific, so I think I need to point you to the official resources. They recently made some nice updates, but I am admittedly not up to speed on all the changes.
Through the configuration, you will want to setup a 'developer authenticated identity', take note of the 'identity pool id', and the IAM role ARN setup by Cognito.
- Setup a Node Server that can handle incoming routes
There are a lot of materials out there on how to accomplish this, but you want to be sure to include and configure the AWS SDK. I also recommend using body-parser as it will make reading in your POST requests easier.
var app = express();
var bodyParser = require('body-parser');
var AWS = require('aws-sdk');
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
- Create POST Function to talk with Cognito
Once you have your server setup, you then reach out to Cognito using getOpenIdTokenForDeveloperIdentity. In my setup, I use authenticated users because I expect them to come back and want to be able to continue the associations, so that is why I send in a UserID in req.body.UserIDFromAngularApp.
This is my function using express.router().
.post(function(req, res) {
if(req.body.UserIDFromAngularApp) {
var cognitoidentity = new AWS.CognitoIdentity();
var params = {
IdentityPoolId: 'your_cognito_identity_pool_id',
Logins: {
'your_developer_authenticated_identity_name': req.body.UserIDFromAngularApp
}
};
cognitoidentity.getOpenIdTokenForDeveloperIdentity(params, function(err, data) {
if (err) { console.log(err, err.stack); res.json({failure: 'Connection failure'}); }
else {
console.log(data); // so you can see your result server side
res.json(data); // send it back
}
});
}
else { res.json({failure: 'Connection failure'}); }
});
If all goes well, that will return an OpenID Token back to you. You can then return that back to your Angular application.
- POST from Angular, Collect from Promise
At the very least you need to post to your new node server and then collect the OpenID token out of the promise. Using this pattern, that will be found in data.Token.
It sounds like from there you may just need to pass that token on to your plugin/tool.
In case you need to handle authentication further, I have included code to handle the WebIdentityCredentials.
angular.module('yourApp').factory('AWSmaker', ['$http', function($http) {
return {
reachCognito: function(authData) {
$http.post('http://localhost:8888/simpleapi/aws', {
'UserIDFromAngularApp': authData.uid,
})
.success(function(data, status, headers, config) {
if(!data.failure) {
var params = {
RoleArn: your_role_arn_setup_by_cognito,
WebIdentityToken: data.Token
};
AWS.config.credentials = new AWS.WebIdentityCredentials(params, function(err) {
console.log(err, err.stack);
});
}
});
}
}]);
This should get you on your way. Let me know if I can help further.
