why use post method as "get" in GraphQL ?

[mydearxym]

1. as mentioned in Absinthe doc

Due to varying limits on the maximum size of URLs, we recommend using one of the POST options below instead, putting the query into the body of the request.

2. phoenix 1.5+ requires plug > 1.10, which treat all the GET parameter values as strings, it will break the workflow, see can't get integer parameters after upgrade to 1.10.0 version elixir-plug/plug#1006