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Data wants to be free and so much of what we do in the wide and wonderful world of microservices is all about connecting data. It's difficult. There's a tension between how we build well-encapsulated microservices and how we connect their data to our clients. Until now. Facebook open sourced GraphQL in 2015 (also the same year that "Avengers: Age of Ultron," a movie about a psychotic supercomputer that wanted to take over the world came out. No coincidence, surely...). GraphQL is an alternative to the REST constraint on HTTP. It provides an easy way to model queries (reads, like an HTTP GET), subscriptions (longer-lived, asynchronous notifications sent to the client), and mutations (updates).
Join Spring Developer Advocate Josh Long, and we'll look at how to build data gateways for every clients' needs with Spring GraphQL.