GraphQL parsing fails on 'subscription' field

[thomas9911]

We ran into an issue, while using a field called 'subscription' in our GraphQL query. I thought this was related that 'subscription' is a keyword in GraphQL, but if I use other keywords they will just work.

For example: Works:

iex> :graphql.parse("{id query mutation fragment}")
{:ok, _}

iex> :graphql.parse("{id query mutation subscription}")
{:error,
 {:parser_error,
  {1, :graphql_parser, ['syntax error before: ', 'subscription']}}}

Version: 0.15.0 Elixir version: 1.10.4 Erlang version: 22.3