Created
February 22, 2024 15:17
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| require "bundler/inline" | |
| gemfile do | |
| gem "graphql", "1.12.17" | |
| # gem "graphql", "1.12.18" | |
| end | |
| class MySchema < GraphQL::Schema | |
| class Model < GraphQL::Schema::Object | |
| field :name, String, null: false | |
| end | |
| class Make < GraphQL::Schema::Object | |
| field :models, Model.connection_type, null: false | |
| end | |
| class MakeResolver < GraphQL::Schema::Resolver | |
| def resolve(name: nil) | |
| { | |
| models: [{ name: "Cool car" }] | |
| } | |
| end | |
| end | |
| class Query < GraphQL::Schema::Object | |
| field :make, Make, null: true, resolver: MakeResolver do # rubocop:disable GraphQL/DefaultNullTrue | |
| argument :name, String, required: true # rubocop:disable GraphQL/DefaultRequiredTrue | |
| end | |
| def make(name:) | |
| { | |
| models: [{ name: "Cool car" }] | |
| } | |
| end | |
| end | |
| query(Query) | |
| end | |
| puts GraphQL::VERSION | |
| query_str = "query GetModels($name: String) { | |
| make(name: $name) { | |
| models { | |
| edges { | |
| node { | |
| name | |
| } | |
| } | |
| } | |
| } | |
| }" | |
| pp MySchema.execute(query_str).to_h | |
| # 1.12.17 | |
| # {"errors"=> | |
| # [{"message"=> | |
| # "Nullability mismatch on variable $name and argument name (String / String!)", | |
| # "locations"=>[{"line"=>2, "column"=>8}], | |
| # "path"=>["query GetModels", "make", "name"], | |
| # "extensions"=> | |
| # {"code"=>"variableMismatch", | |
| # "variableName"=>"name", | |
| # "typeName"=>"String", | |
| # "argumentName"=>"name", | |
| # "errorMessage"=>"Nullability mismatch"}}]} |
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