3.6. Application Services Microservices¶
Application Services are the means to extract, process/transform and send event/reading data from EdgeX to an endpoint or process of your choice.
Application Services are based on the idea of a “Functions Pipeline”. A functions pipeline is a collection of functions that process messages (in this case EdgeX event/reading messages) in the order that you’ve specified. The first function in a pipeline is a trigger. A trigger begins the functions pipeline execution. A trigger is something like a message landing in a watched message queue.
An SDK is provided (the Applicaiton Functions SDK) to help build Application Services by assembling triggers, pre-existing functions and custom functions of your making into a pipeline.
Note Application Services will replace Export Services in a future EdgeX release.