Absinthe GET or POST in query

Hi, I’ve implemented a GraphQL API based on the book “Craft GraphQL API in Elixir with Absinthe”, it works well both queries and mutations.

However when I make queries, they only work with the POST method, with the GET method, it doesnt work.

In the router I have these lines:

  pipeline :api do
    plug :accepts, ["json"]

  pipeline :graphql do
    plug ProjectWeb.Context

Could it be that the json, only acepts POST methods and not GET?