Class: Jets::Resource::ApiGateway::RestApi::Routes::Change::Base
- Inherits:
-
Object
- Object
- Jets::Resource::ApiGateway::RestApi::Routes::Change::Base
show all
- Extended by:
- Memoist
- Includes:
- AwsServices
- Defined in:
- lib/jets/resource/api_gateway/rest_api/routes/change/base.rb
Class Method Summary
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Instance Method Summary
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#apigateway, #aws_lambda, #aws_options, #cfn, #dynamodb, #logs, #s3, #s3_resource, #sns, #sqs, #sts
#lookup, #stack_exists?, #stack_in_progress?
included
Class Method Details
.changed? ⇒ Boolean
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# File 'lib/jets/resource/api_gateway/rest_api/routes/change/base.rb', line 6
def self.changed?
new.changed?
end
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Instance Method Details
#controller_action_from_api(function_arn) ⇒ Object
TODO: If this hits the Lambda Rate limit, then list_functions also contains the Lambda function description. So we can paginate through list_functions results and store description from there if needed. Dont think this will be needed though because controller_action_from_string gets called most of the time. Also, user might be able to request their Lambda limit to be increased.
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# File 'lib/jets/resource/api_gateway/rest_api/routes/change/base.rb', line 95
def controller_action_from_api(function_arn)
desc = lambda_function_description(function_arn)
controller, action = desc.split('#')
controller = controller.underscore.sub(/_controller$/,'')
[controller, action]
end
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#controller_action_from_string(function_arn) ⇒ Object
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# File 'lib/jets/resource/api_gateway/rest_api/routes/change/base.rb', line 102
def controller_action_from_string(function_arn)
controller_action = function_arn.sub("#{Jets.project_namespace}-", '')
md = controller_action.match(/(.*)_controller-(.*)/)
controller = md[1]
controller = controller.gsub('-','/')
action = md[2]
[controller, action]
end
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#deployed_routes ⇒ Object
Build up deployed routes from the existing CloudFormation resources.
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# File 'lib/jets/resource/api_gateway/rest_api/routes/change/base.rb', line 11
def deployed_routes
routes = []
resources, position = [], true
while position
position = nil if position == true resp = apigateway.get_resources(
rest_api_id: rest_api_id,
position: position,
limit: 500, )
resources += resp.items
position = resp.position
end
resources.each do |resource|
resource_methods = resource.resource_methods
next if resource_methods.nil?
resource_methods.each do |http_verb, resource_method|
next if http_verb == "OPTIONS"
path = recreate_path(resource.path)
method = http_verb.downcase.to_sym
to = to(resource.id, http_verb)
route = Jets::Router::Route.new(path: path, method: method, to: to)
routes << route
end
end
routes
end
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#get_controller_action(function_arn) ⇒ Object
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# File 'lib/jets/resource/api_gateway/rest_api/routes/change/base.rb', line 82
def get_controller_action(function_arn)
if function_arn.include?('_controller-')
controller_action_from_string(function_arn)
else
controller_action_from_api(function_arn)
end
end
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#lambda_function_description(function_arn) ⇒ Object
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# File 'lib/jets/resource/api_gateway/rest_api/routes/change/base.rb', line 111
def lambda_function_description(function_arn)
resp = aws_lambda.get_function(function_name: function_arn)
resp.configuration.description end
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#method_uri(resource_id, http_method) ⇒ Object
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# File 'lib/jets/resource/api_gateway/rest_api/routes/change/base.rb', line 60
def method_uri(resource_id, http_method)
resp = apigateway.get_method(
rest_api_id: rest_api_id,
resource_id: resource_id,
http_method: http_method
)
resp.method_integration.uri
end
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#new_routes ⇒ Object
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# File 'lib/jets/resource/api_gateway/rest_api/routes/change/base.rb', line 131
def new_routes
Jets::Router.routes
end
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#recreate_path(path) ⇒ Object
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# File 'lib/jets/resource/api_gateway/rest_api/routes/change/base.rb', line 49
def recreate_path(path)
path = path.gsub(%r{^/},'')
path = path.gsub(/{([^}]*)\+}/, '*\1')
path.gsub(/{([^}]*)}/, ':\1')
end
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#recreate_to(method_uri) ⇒ Object
Parses method uri and recreates a Route to argument. So:
"arn:aws:apigateway:us-west-2:lambda:path/2015-03-31/functions/arn:aws:lambda:us-west-2:112233445566:function:demo-test-posts_controller-new/invocations"
Returns:
posts
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# File 'lib/jets/resource/api_gateway/rest_api/routes/change/base.rb', line 75
def recreate_to(method_uri)
md = method_uri.match(/function:(.*)\//)
function_arn = md[1] controller, action = get_controller_action(function_arn)
"#{controller}##{action}" end
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#rest_api_id ⇒ Object
Duplicated in rest_api/change_detection.rb, base_path/role.rb, rest_api/routes.rb
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# File 'lib/jets/resource/api_gateway/rest_api/routes/change/base.rb', line 117
def rest_api_id
stack_name = Jets::Naming.parent_stack_name
return "RestApi" unless stack_exists?(stack_name)
stack = cfn.describe_stacks(stack_name: stack_name).stacks.first
api_gateway_stack_arn = lookup(stack[:outputs], "ApiGateway")
stack = cfn.describe_stacks(stack_name: api_gateway_stack_arn).stacks.first
lookup(stack[:outputs], "RestApi") end
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#to(resource_id, http_method) ⇒ Object
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# File 'lib/jets/resource/api_gateway/rest_api/routes/change/base.rb', line 55
def to(resource_id, http_method)
uri = method_uri(resource_id, http_method)
recreate_to(uri) unless uri.nil?
end
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