6fd9a286d7
Rails 5.2 crashes in the `db:create` task because it tries to run the `after_initialize` block before the database is created. The easiest way to solve it is to move the code out of the initializer and calculate the API type definitions on demand. Note results are still cached using a class instance variable (not to be confused with a class variable), and so once definitions are obtained, they will remain constant until the application is restarted, even in the development environment.
58 lines
1.5 KiB
Ruby
58 lines
1.5 KiB
Ruby
class GraphqlController < ApplicationController
|
|
include FeatureFlags
|
|
|
|
feature_flag :graphql_api
|
|
|
|
skip_before_action :verify_authenticity_token
|
|
skip_authorization_check
|
|
|
|
class QueryStringError < StandardError
|
|
end
|
|
|
|
def query
|
|
begin
|
|
if query_string.nil? then raise GraphqlController::QueryStringError end
|
|
|
|
response = consul_schema.execute query_string, variables: query_variables
|
|
render json: response, status: :ok
|
|
rescue GraphqlController::QueryStringError
|
|
render json: { message: "Query string not present" }, status: :bad_request
|
|
rescue JSON::ParserError
|
|
render json: { message: "Error parsing JSON" }, status: :bad_request
|
|
rescue GraphQL::ParseError
|
|
render json: { message: "Query string is not valid JSON" }, status: :bad_request
|
|
rescue
|
|
unless Rails.env.production? then raise end
|
|
end
|
|
end
|
|
|
|
private
|
|
|
|
def consul_schema
|
|
api_types = GraphQL::ApiTypesCreator.create
|
|
query_type = GraphQL::QueryTypeCreator.create(api_types)
|
|
|
|
GraphQL::Schema.define do
|
|
query query_type
|
|
max_depth 8
|
|
max_complexity 2500
|
|
end
|
|
end
|
|
|
|
def query_string
|
|
if request.headers["CONTENT_TYPE"] == "application/graphql"
|
|
request.body.string # request.body.class => StringIO
|
|
else
|
|
params[:query]
|
|
end
|
|
end
|
|
|
|
def query_variables
|
|
if params[:variables].blank? || params[:variables] == "null"
|
|
{}
|
|
else
|
|
JSON.parse(params[:variables])
|
|
end
|
|
end
|
|
end
|