Add graphql end point

app/controllers/api/v2/base_controller.rb

@@ -0,0 +1,20 @@
+class API::V2::BaseController < ApplicationController
+  protect_from_forgery with: :null_session
+
+  private
+
+  def context
+    {
+      administrateur_id: current_administrateur&.id,
+      token: authorization_bearer_token
+    }
+  end
+
+  def authorization_bearer_token
+    received_token = nil
+    authenticate_with_http_token do |token, _options|
+      received_token = token
+    end
+    received_token
+  end
+end

app/controllers/api/v2/graphql_controller.rb

@@ -0,0 +1,45 @@
+class API::V2::GraphqlController < API::V2::BaseController
+  def execute
+    variables = ensure_hash(params[:variables])
+
+    result = Api::V2::Schema.execute(params[:query],
+      variables: variables,
+      context: context,
+      operation_name: params[:operationName])
+
+    render json: result
+  rescue => e
+    if Rails.env.development?
+      handle_error_in_development e
+    else
+      raise e
+    end
+  end
+
+  private
+
+  # Handle form data, JSON body, or a blank value
+  def ensure_hash(ambiguous_param)
+    case ambiguous_param
+    when String
+      if ambiguous_param.present?
+        ensure_hash(JSON.parse(ambiguous_param))
+      else
+        {}
+      end
+    when Hash, ActionController::Parameters
+      ambiguous_param
+    when nil
+      {}
+    else
+      raise ArgumentError, "Unexpected parameter: #{ambiguous_param}"
+    end
+  end
+
+  def handle_error_in_development(e)
+    logger.error e.message
+    logger.error e.backtrace.join("\n")
+
+    render json: { error: { message: e.message, backtrace: e.backtrace }, data: {} }, status: 500
+  end
+end

config/routes.rb

@@ -225,6 +225,10 @@ Rails.application.routes.draw do
         resources :dossiers, only: [:index, :show]
       end
     end
+
+    namespace :v2 do
+      post :graphql, to: "graphql#execute"
+    end
   end
 
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