Hello, today Eugene and me did a talk about about modular APIs for IO at ApacheCon. This talk introduces some common patterns that we have found while creating IO connectors and also presents recent ideas like dynamic destinations, sequential writes among others using FileIO as a use case.
In case you guys want to take a look, here is a copy of the slides, we will probably add this to the IO authoring documentation too. https://s.apache.org/beam-modular-io-talk
