API

Building with an Open Bank API Part 2

Building with an Open Bank API Part 2

This is a continuation of Part 1 here. In part 1, I wrote a wrapper to call Citibank’s API. In this part of the tutorial, I call the RESTful wrapper services that I wrote in part 1 to give users an interface to see their accounts and transfer funds to external accounts. A big news in

Building with an Open Bank API Part 1

Building with an Open Bank API Part 1

Banks have been exposing some of their most closely guarded functionalities as RESTful API services for developers to integrate with. In Singapore, it started with OCBC slightly more than a year ago, followed by Citibank. OCBC started with simple RESTful services to list ATM locations and products. Just 2 months ago, it launched a suite of

OAuth2 on a Virtual Server

OAuth2 on a Virtual Server

Can a $5-a-month virtual server run an OAuth2 Server? My virtual server has been my testbed for many IoT projects that make Web API calls to the web services that I have developed. None of these were as secure as I want them to be because I have never gone around implementing an OAuth2 server.