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OPEN TALK: Client-Serverless Is the 4th Generation Application Model


Brecht De Rooms
Fauna, Senior Developer Advocate


Brecht De Rooms is a senior developer advocate at Fauna. He is a programmer who has worked extensively in IT as a full-stack developer and researcher in both the startup and IT consultancy worlds. It is his mission to shed light on emerging and powerful technologies that make it easier for developers to build apps and services that will captivate users.



After a long evolution, the browser has become a programmable client that lives in a globally connected world of APIs. This combination of a ubiquitous client with a sea of serverless APIs and the emergence of APIs with advanced security features have enabled the new, client-serverless application model. In such a model, we slowly move away from three-tier applications. In three-tier applications, APIs were typically guarded by the backend. In client-serverless, clients are rapidly taking on a more central role, where clients become responsible for gathering their data services directly from the data source. Needless to say, this reduces complexity, but also brings an entirely different security model which SaaS providers will need to prepare for.