terraform/modules/aws_api_gateway_method_for_lambda_function

Rakefile

@@ -88,7 +88,7 @@ namespace :test do
   desc 'Lint.'
   task :lint do
     sh 'bundle exec rubocop'
-    sh 'flake8 aws_lambda'
+    Dir.chdir('aws_lambda') { sh 'flake8' }
     Dir.chdir 'terraform' do
       sh 'terraform validate'
       Dir['modules/*/'].each { |dir| sh "terraform validate #{dir}" }

aws_lambda/requirements.txt

@@ -0,0 +1,7 @@
+configparser==3.5.0
+enum34==1.1.6
+flake8==3.0.3
+mccabe==0.5.2
+pep8==1.7.0
+pycodestyle==2.0.0
+pyflakes==1.2.3

terraform/apigateway_research.tf

@@ -4,7 +4,6 @@ resource "aws_api_gateway_rest_api" "research" {
 }
 
 resource "aws_api_gateway_deployment" "research_staging" {
-  depends_on = ["aws_api_gateway_integration.research_heartbeat_ok_get"]
   rest_api_id = "${aws_api_gateway_rest_api.research.id}"
   stage_description = "staging"
   stage_name = "staging"
@@ -14,7 +13,6 @@ resource "aws_api_gateway_deployment" "research_staging" {
 }
 
 resource "aws_api_gateway_deployment" "research_prod" {
-  depends_on = ["aws_api_gateway_integration.research_heartbeat_ok_get"]
   rest_api_id = "${aws_api_gateway_rest_api.research.id}"
   stage_description = "production"
   stage_name = "prod"
@@ -51,255 +49,77 @@ resource "aws_api_gateway_resource" "research_random_id" {
   rest_api_id = "${aws_api_gateway_rest_api.research.id}"
 }
 
-# {{{ GET /heartbeat/ok
-
-resource "aws_api_gateway_method" "research_heartbeat_ok_get" {
-  authorization = "NONE"
+# GET /heartbeat/ok
+module "aws_api_gateway_method_research_heartbeat_ok_get" {
+  source = "./modules/aws_api_gateway_method_for_lambda_function"
+  aws_region = "${var.aws_region}"
+  aws_account_id = "${var.aws_account_id}"
+  error_status_codes = "500"
+  function_name = "${module.aws_lambda_function_for_apigateway_heartbeat_ok.function_name}"
   http_method = "GET"
-  resource_id = "${aws_api_gateway_resource.research_heartbeat_ok.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-}
-
-resource "aws_api_gateway_integration" "research_heartbeat_ok_get" {
-  http_method = "${aws_api_gateway_method.research_heartbeat_ok_get.http_method}"
-  integration_http_method = "POST"
-  request_templates = {
-    "application/json" = <<EOF
-{
-  "stage": "$stageVariables.stage"
-}
+  integration_response_parameters_in_json = <<EOF
+{ "method.response.header.Content-Type": "'text/plain'" }
 EOF
-  }
-  resource_id = "${aws_api_gateway_resource.research_heartbeat_ok.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  type = "AWS"
-  uri = "arn:aws:apigateway:${var.aws_region}:lambda:path/2015-03-31/functions/arn:aws:lambda:${var.aws_region}:${var.aws_account_id}:function:${module.aws_lambda_function_for_apigateway_heartbeat_ok.function_name}:$${stageVariables.stage}/invocations"
-}
-
-resource "aws_api_gateway_method_response" "research_heartbeat_ok_get_200" {
-  http_method = "${aws_api_gateway_method.research_heartbeat_ok_get.http_method}"
-  resource_id = "${aws_api_gateway_resource.research_heartbeat_ok.id}"
-  response_parameters_in_json = <<EOF
-{
-  "method.response.header.Content-Type": true
-}
+  integration_response_templates = "$input.path('$')"
+  method_response_parameters_in_json = <<EOF
+{ "method.response.header.Content-Type": true }
 EOF
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  status_code = "200"
-}
-
-resource "aws_api_gateway_integration_response" "research_heartbeat_ok_get_200" {
-  depends_on = ["aws_api_gateway_integration.research_heartbeat_ok_get"]
-  http_method = "${aws_api_gateway_method.research_heartbeat_ok_get.http_method}"
   resource_id = "${aws_api_gateway_resource.research_heartbeat_ok.id}"
-  response_parameters_in_json = <<EOF
-{
-  "method.response.header.Content-Type": "'text/plain'"
-}
-EOF
-  response_templates = {
-    "application/json" = "$input.path('$')"
-  }
   rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  status_code = "${aws_api_gateway_method_response.research_heartbeat_ok_get_200.status_code}"
 }
 
-# }}} GET /heartbeat/ok
-
-# {{{ GET /random/{id}
-
-resource "aws_api_gateway_method" "research_random_id_get" {
-  authorization = "NONE"
+# GET /random/{id}
+module "aws_api_gateway_method_research_random_id_get" {
+  source = "./modules/aws_api_gateway_method_for_lambda_function"
+  aws_region = "${var.aws_region}"
+  aws_account_id = "${var.aws_account_id}"
+  error_status_codes = "400,500"
+  function_name = "${module.aws_lambda_function_for_apigateway_get_random.function_name}"
   http_method = "GET"
-  request_parameters_in_json = <<EOF
-{
-  "method.request.path.id": true,
-  "method.request.querystring.dummy1": true,
-  "method.request.querystring.dummy2": true
-}
-EOF
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-}
-
-resource "aws_api_gateway_integration" "research_random_id_get" {
-  http_method = "${aws_api_gateway_method.research_random_id_get.http_method}"
-  integration_http_method = "POST"
-  request_parameters_in_json = <<EOF
+  integration_request_parameters_in_json = <<EOF
 {
   "integration.request.path.id": "method.request.path.id",
   "integration.request.querystring.dummy1": "method.request.querystring.dummy1",
   "integration.request.querystring.dummy2": "method.request.querystring.dummy2"
 }
 EOF
-  request_templates = {
-    "application/json" = <<EOF
+  integration_request_templates = <<EOF
 {
   "dummy1": "$input.params('dummy1')",
   "dummy2": "$input.params('dummy2')",
   "id": "$input.params('id')",
   "stage": "$stageVariables.stage"
 }
 EOF
-  }
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  type = "AWS"
-  uri = "arn:aws:apigateway:${var.aws_region}:lambda:path/2015-03-31/functions/arn:aws:lambda:${var.aws_region}:${var.aws_account_id}:function:${module.aws_lambda_function_for_apigateway_get_random.function_name}:$${stageVariables.stage}/invocations"
-}
-
-resource "aws_api_gateway_method_response" "research_random_id_get_200" {
-  http_method = "${aws_api_gateway_method.research_random_id_get.http_method}"
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  status_code = "200"
-}
-
-resource "aws_api_gateway_method_response" "research_random_id_get_400" {
-  http_method = "${aws_api_gateway_method.research_random_id_get.http_method}"
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  status_code = "400"
-}
-
-resource "aws_api_gateway_method_response" "research_random_id_get_500" {
-  http_method = "${aws_api_gateway_method.research_random_id_get.http_method}"
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  status_code = "500"
-}
-
-resource "aws_api_gateway_integration_response" "research_random_id_get_200" {
-  depends_on = ["aws_api_gateway_integration.research_random_id_get"]
-  http_method = "${aws_api_gateway_method.research_random_id_get.http_method}"
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  status_code = "${aws_api_gateway_method_response.research_random_id_get_200.status_code}"
-}
-
-resource "aws_api_gateway_integration_response" "research_random_id_get_400" {
-  depends_on = ["aws_api_gateway_integration.research_random_id_get"]
-  http_method = "${aws_api_gateway_method.research_random_id_get.http_method}"
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  response_templates = {
-    "application/json" = <<EOF
+  method_request_parameters_in_json = <<EOF
 {
-  "error": "$input.path('$.errorMessage').substring(5)"
+  "method.request.path.id": true,
+  "method.request.querystring.dummy1": true,
+  "method.request.querystring.dummy2": true
 }
 EOF
-  }
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  selection_pattern = "400: .+"
-  status_code = "${aws_api_gateway_method_response.research_random_id_get_400.status_code}"
-}
-
-resource "aws_api_gateway_integration_response" "research_random_id_get_500" {
-  depends_on = ["aws_api_gateway_integration.research_random_id_get"]
-  http_method = "${aws_api_gateway_method.research_random_id_get.http_method}"
   resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  response_templates = {
-    "application/json" = <<EOF
-{
-  "error": "$input.path('$.errorMessage').substring(5)"
-}
-EOF
-  }
   rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  selection_pattern = "500: .+"
-  status_code = "${aws_api_gateway_method_response.research_random_id_get_500.status_code}"
 }
 
-# }}} GET /random/{id}
-
-# {{{ PUT /random/{id}
-
-resource "aws_api_gateway_method" "research_random_id_put" {
-  authorization = "NONE"
+# PUT /random/{id}
+module "aws_api_gateway_method_research_random_id_put" {
+  source = "./modules/aws_api_gateway_method_for_lambda_function"
+  aws_region = "${var.aws_region}"
+  aws_account_id = "${var.aws_account_id}"
+  error_status_codes = "400,500"
+  function_name = "${module.aws_lambda_function_for_apigateway_put_random.function_name}"
   http_method = "PUT"
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-}
-
-resource "aws_api_gateway_integration" "research_random_id_put" {
-  http_method = "${aws_api_gateway_method.research_random_id_put.http_method}"
-  integration_http_method = "POST"
-  request_templates = {
-    "application/json" = <<EOF
+  integration_request_templates = <<EOF
 {
   "dummy1": "$input.path('$.dummy1')",
   "dummy2": "$input.path('$.dummy2')",
   "id": "$input.params('id')",
   "stage": "$stageVariables.stage"
 }
 EOF
-  }
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  type = "AWS"
-  uri = "arn:aws:apigateway:${var.aws_region}:lambda:path/2015-03-31/functions/arn:aws:lambda:${var.aws_region}:${var.aws_account_id}:function:${module.aws_lambda_function_for_apigateway_put_random.function_name}:$${stageVariables.stage}/invocations"
-}
-
-resource "aws_api_gateway_method_response" "research_random_id_put_200" {
-  http_method = "${aws_api_gateway_method.research_random_id_put.http_method}"
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  status_code = "200"
-}
-
-resource "aws_api_gateway_method_response" "research_random_id_put_400" {
-  http_method = "${aws_api_gateway_method.research_random_id_put.http_method}"
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  status_code = "400"
-}
-
-resource "aws_api_gateway_method_response" "research_random_id_put_500" {
-  http_method = "${aws_api_gateway_method.research_random_id_put.http_method}"
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  status_code = "500"
-}
-
-resource "aws_api_gateway_integration_response" "research_random_id_put_200" {
-  depends_on = ["aws_api_gateway_integration.research_random_id_put"]
-  http_method = "${aws_api_gateway_method.research_random_id_put.http_method}"
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  status_code = "${aws_api_gateway_method_response.research_random_id_put_200.status_code}"
-}
-
-resource "aws_api_gateway_integration_response" "research_random_id_put_400" {
-  depends_on = ["aws_api_gateway_integration.research_random_id_put"]
-  http_method = "${aws_api_gateway_method.research_random_id_put.http_method}"
-  resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  response_templates = {
-    "application/json" = <<EOF
-{
-  "error": "$input.path('$.errorMessage').substring(5)"
-}
-EOF
-  }
-  rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  selection_pattern = "400: .+"
-  status_code = "${aws_api_gateway_method_response.research_random_id_put_400.status_code}"
-}
-
-resource "aws_api_gateway_integration_response" "research_random_id_put_500" {
-  depends_on = ["aws_api_gateway_integration.research_random_id_put"]
-  http_method = "${aws_api_gateway_method.research_random_id_put.http_method}"
   resource_id = "${aws_api_gateway_resource.research_random_id.id}"
-  response_templates = {
-    "application/json" = <<EOF
-{
-  "error": "$input.path('$.errorMessage').substring(5)"
-}
-EOF
-  }
   rest_api_id = "${aws_api_gateway_rest_api.research.id}"
-  selection_pattern = "500: .+"
-  status_code = "${aws_api_gateway_method_response.research_random_id_put_500.status_code}"
 }
 
-# }}} PUT /random/{id}
-
 # vim: set fdm=marker:

terraform/modules/aws_api_gateway_method_for_lambda_function/main.tf

@@ -0,0 +1,69 @@
+resource "aws_api_gateway_method" "method" {
+  authorization = "${var.authorization}"
+  http_method = "${var.http_method}"
+  request_parameters_in_json = "${var.method_request_parameters_in_json}"
+  resource_id = "${var.resource_id}"
+  rest_api_id = "${var.rest_api_id}"
+}
+
+resource "aws_api_gateway_integration" "integration" {
+  depends_on = ["aws_api_gateway_method.method"]
+  http_method = "${var.http_method}"
+  integration_http_method = "POST"
+  request_parameters_in_json = "${var.integration_request_parameters_in_json}"
+  request_templates = {
+    "application/json" = "${var.integration_request_templates}"
+  }
+  resource_id = "${var.resource_id}"
+  rest_api_id = "${var.rest_api_id}"
+  type = "AWS"
+  uri = "arn:aws:apigateway:${var.aws_region}:lambda:path/2015-03-31/functions/arn:aws:lambda:${var.aws_region}:${var.aws_account_id}:function:${var.function_name}:$${stageVariables.stage}/invocations"
+}
+
+resource "aws_api_gateway_method_response" "method_response_200" {
+  depends_on = ["aws_api_gateway_method.method"]
+  http_method = "${var.http_method}"
+  resource_id = "${var.resource_id}"
+  response_parameters_in_json = "${var.method_response_parameters_in_json}"
+  rest_api_id = "${var.rest_api_id}"
+  status_code = "200"
+}
+
+resource "aws_api_gateway_integration_response" "integration_response_200" {
+  depends_on = [
+    "aws_api_gateway_integration.integration",
+    "aws_api_gateway_method_response.method_response_200"
+  ]
+  http_method = "${var.http_method}"
+  resource_id = "${var.resource_id}"
+  response_parameters_in_json = "${var.integration_response_parameters_in_json}"
+  response_templates = {
+    "application/json" = "${var.integration_response_templates}"
+  }
+  rest_api_id = "${var.rest_api_id}"
+  status_code = "200"
+}
+
+resource "aws_api_gateway_method_response" "method_response_error" {
+  count = "${length(split(",", var.error_status_codes))}"
+  depends_on = ["aws_api_gateway_method.method"]
+  http_method = "${var.http_method}"
+  resource_id = "${var.resource_id}"
+  rest_api_id = "${var.rest_api_id}"
+  status_code = "${element(split(",", var.error_status_codes), count.index)}"
+}
+
+resource "aws_api_gateway_integration_response" "integration_response_error" {
+  count = "${length(split(",", var.error_status_codes))}"
+  depends_on = ["aws_api_gateway_integration.integration"]
+  http_method = "${var.http_method}"
+  resource_id = "${var.resource_id}"
+  response_templates = {
+    "application/json" = <<EOF
+{ "error": "$input.path('$.errorMessage').substring(5)" }
+EOF
+  }
+  rest_api_id = "${var.rest_api_id}"
+  selection_pattern = "${element(split(",", var.error_status_codes), count.index)}: .+"
+  status_code = "${element(split(",", var.error_status_codes), count.index)}"
+}