Reference frontend in the API gateway

api_gw.frontend.tf

@@ -0,0 +1,30 @@
+resource "aws_api_gateway_resource" "transponder-tracker-frontend" {
+  parent_id   = aws_api_gateway_rest_api.transponder-tracker.root_resource_id
+  path_part   = "/"
+  rest_api_id = aws_api_gateway_rest_api.transponder-tracker.id
+}
+
+resource "aws_api_gateway_method" "transponder-tracker-frontend" {
+  authorization = "NONE"
+  http_method   = "GET"
+  resource_id   = aws_api_gateway_resource.transponder-tracker-frontend.id
+  rest_api_id   = aws_api_gateway_rest_api.transponder-tracker.id
+}
+
+resource "aws_api_gateway_integration" "transponder-tracker-frontend" {
+  http_method = aws_api_gateway_method.transponder-tracker-frontend.http_method
+  resource_id = aws_api_gateway_resource.transponder-tracker-frontend.id
+  rest_api_id = aws_api_gateway_rest_api.transponder-tracker.id
+  type        = "AWS_PROXY"
+  uri         = module.frontend-lambda.invoke_arn
+}
+
+resource "aws_lambda_permission" "apigw_lambda_frontend" {
+  statement_id  = "AllowExecutionFromAPIGateway"
+  action        = "lambda:InvokeFunction"
+  function_name = module.frontend-lambda.function_name
+  principal     = "apigateway.amazonaws.com"
+
+  # More: http://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-control-access-using-iam-policies-to-invoke-api.html
+  source_arn = "arn:aws:execute-api:${data.aws_region.current.name}:${data.aws_caller_identity.current.id}:${aws_api_gateway_rest_api.transponder-tracker.id}/*/${aws_api_gateway_method.transponder-tracker-frontend.http_method}${aws_api_gateway_resource.transponder-tracker-frontend.path}"
+}