Class: Jets::Cfn::TemplateBuilders::ControllerBuilder

Inherits:
BaseChildBuilder show all
Defined in:
lib/jets/cfn/template_builders/controller_builder.rb

Instance Method Summary collapse

Methods inherited from BaseChildBuilder

#add_class_iam_policy, #add_common_parameters, #add_function, #add_functions, #add_iam_policy, #initialize, #template_path

Methods included from Interface

#add_output, #add_parameter, #add_resource, #build, #post_process_template, #template, #text, #write

Constructor Details

This class inherits a constructor from Jets::Cfn::TemplateBuilders::BaseChildBuilder

Instance Method Details

#add_api_gateway_parameters ⇒ Object 



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# File 'lib/jets/cfn/template_builders/controller_builder.rb', line 11

def add_api_gateway_parameters
  return if Jets::Router.routes.empty?

  add_parameter("RestApi", Description: "RestApi")
  scoped_routes.each do |route|
    map = Jets::Cfn::TemplateMappers::GatewayResourceMapper.new(route.path)
    add_parameter(map.logical_id, Description: map.desc)
  end
end

#add_cors(map) ⇒ Object 



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# File 'lib/jets/cfn/template_builders/controller_builder.rb', line 48

def add_cors(map)
  # TODO: provide a way to allow specify CORs domains
  return unless Jets.config.cors

  add_resource(map.cors_logical_id, "AWS::ApiGateway::Method",
    AuthorizationType: "NONE",
    HttpMethod: "OPTIONS",
    MethodResponses: [
      {
        StatusCode: "200",
        ResponseParameters: {
          "method.response.header.Access-Control-AllowOrigin" => true,
          "method.response.header.Access-Control-AllowHeaders" => true,
          "method.response.header.Access-Control-AllowMethods" => true,
          "method.response.header.Access-Control-AllowCredentials" => true
        },
        ResponseModels: {}
      }
    ],
    RequestParameters: {},
    Integration: {
      Type: "MOCK",
      RequestTemplates: {
        "application/json" => "{statusCode:200}"
      },
      IntegrationResponses: [
        {
          StatusCode: "200",
          ResponseParameters: {
            "method.response.header.Access-Control-AllowOrigin" => "'*'",
            "method.response.header.Access-Control-AllowHeaders" => "'Content-Type,X-Amz-Date,Authorization,X-Api-Key,X-Amz-Security-Token,X-Amz-User-Agent'",
            "method.response.header.Access-Control-AllowMethods" => "'OPTIONS,GET'",
            "method.response.header.Access-Control-AllowCredentials" => "'false'"
          },
          ResponseTemplates: {"application/json" => ""}
        }
      ]
    },
    ResourceId: "!Ref #{map.gateway_resource_logical_id}",
    RestApiId: "!Ref RestApi",
  )
end

#add_permission(map) ⇒ Object 



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# File 'lib/jets/cfn/template_builders/controller_builder.rb', line 91

def add_permission(map)
  add_resource(map.permission_logical_id, "AWS::Lambda::Permission",
    FunctionName: "!GetAtt #{map.lambda_function_logical_id}.Arn",
    Action: "lambda:InvokeFunction",
    Principal: "apigateway.amazonaws.com",
    SourceArn: "!Sub arn:aws:execute-api:${AWS::Region}:${AWS::AccountId}:${RestApi}/*/*"
  )
end

#add_route(route, map) ⇒ Object 



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# File 'lib/jets/cfn/template_builders/controller_builder.rb', line 30

def add_route(route, map)
  # AWS::ApiGateway::Method
  # Example map.logical_id: ApiGatewayMethodPostsControllerIndex
  add_resource(map.logical_id, "AWS::ApiGateway::Method",
    HttpMethod: route.method,
    RequestParameters: {},
    ResourceId: "!Ref #{map.gateway_resource_logical_id}",
    RestApiId: "!Ref RestApi",
    AuthorizationType: "NONE",
    Integration: {
      IntegrationHttpMethod: "POST",
      Type: "AWS_PROXY",
      Uri: "!Sub arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${#{map.lambda_function_logical_id}.Arn}/invocations"
    },
    MethodResponses:[]
  )
end

#add_routes ⇒ Object 



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# File 'lib/jets/cfn/template_builders/controller_builder.rb', line 21

def add_routes
  scoped_routes.each_with_index do |route, i|
    map = Jets::Cfn::TemplateMappers::GatewayMethodMapper.new(route)
    add_route(route, map)
    add_cors(map)
    add_permission(map)
  end
end

#compose ⇒ Object

compose is an interface method for Interface module



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# File 'lib/jets/cfn/template_builders/controller_builder.rb', line 4

def compose
  add_common_parameters
  add_api_gateway_parameters
  add_functions
  add_routes
end

#scoped_routes ⇒ Object

routes scoped to this controller template.



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# File 'lib/jets/cfn/template_builders/controller_builder.rb', line 101

def scoped_routes
  @routes ||= Jets::Router.routes.select do |route|
    route.controller_name == @app_klass.to_s
  end
end