julia> using Pkg; Pkg.add("GraphQLClient")

using GraphQLClient
client = Client("https://countries.trevorblades.com")

global_graphql_client(Client("https://countries.trevorblades.com"))

response = query(client, "countries")

response = query("countries")

query_args = Dict("filter" => Dict("code" => Dict("eq" => "AU")))
response = query("countries"; query_args=query_args, output_fields="name");
response.data["countries"]
# 1-element Vector{Any}:
#  Dict{String, Any}("name" => "Australia")

query_string = gql"""
    query(
      $eq: String
    ){
    countries(
        filter:{
            code:{
                eq:$eq
            }
        }
    ){
        name
    }
}
"""
variables = Dict("eq" => "AU")
response = GraphQLClient.execute(query_string, variables=variables)

using StructTypes
struct CountryName
    name::String
end
StructTypes.StructType(::Type{CountryName}) = StructTypes.OrderedStruct()
response = query("countries", Vector{CountryName}, query_args=query_args, output_fields="name")
response.data["countries"][1]
# CountryName("Australia")

Country = GraphQLClient.introspect_object("Country")
response = query("countries", Vector{Country}, query_args=query_args, output_fields="name")
response.data["countries"][1]
# Country
#   name : Australia

response = mutate(client, "mutation_name", Dict("new_id" => 1))
response = mutate("mutation_name", Dict("new_id" => 1)) # Use global client

open_subscription(
    client,
    "subscription_name",
    sub_args=("id" => 1),
    output_fields="val"
) do response
    val = response.data["subscription_name"]["val"]
    stop_sub = val == 2
    return stop_sub # If this is true, the subscription ends
end