Per-Magnus Holtmo: Using gRPC to fight Mordor

There are several options to set up communication between a set of microservices. This presentation will show a very hands-on approach to how to use gRPC with C++. We will define the interface and go over the required steps to set up clients and servers using both synchronous and asynchronous functions. Common pitfalls will be discussed, as well as how to avoid them.
The event was recorded at StockholmCpp 0x2D
www.meetup.com...
The event was kindly hosted by Prevas AB, www.prevas.se/
More info about C++ user groups in Sweden at swedencpp.se

[@erkintek]

I cant understand why boost asio post is used!

[@QuavePL]

as async task executor

[@Roibarkan]

To elaborate on @QuavePL’s answer - I believe the idea is that all the public functions in AsyncService should return as quickly as possible and have their work done asynchronously (for example in another thread, and in this case on the main thread) and call ‘Finish()’ when they are done (when they populated the response object, ideally). This quick return “ensures” that the gRPC thread isn’t blocked.

[@pmholtmo6585]

Correct answers above. We need to handle the request in a separate thread for asynchronous handling and return the call from the gRPC thread directly. I just picked boost asio as an example since it is pretty easy to work with.