Build Stuff 2018

Master data is critical information for operational and analytical decision-making within a large financial organization. In the case of SEB, Master Data includes customer, products and business arrangements information which is shared internally across our company’s systems yet externally to regulators. As part of transforming our Master Data domain we are re-designing the service interface towards our consumers. One of most popular approaches is to use REST web services for API. But what if we could have a more flexible solution when it comes to the clients’ ability to pick the data they are interested in by not having to build several consumer specific end-points? GraphQL - a very interesting REST alternative - allows the consumer of the API to specify what data it needs and limits the over-fetching or under-serving you can get with REST. During the presentation, we will explain the concepts architects and developers need to understand and talk about challenges you may face when adopting GraphQL. Furthermore, we will provide a demonstration of how REST and GraphQL coexist in our solution. Or maybe we intend to replace REST with GraphQL? Let's discuss!