feat: plug in api gateway

Author: chrispsheehan

infra/modules/aws/api/main.tf

@@ -7,4 +7,42 @@ module "lambda_api" {
 
   lambda_name    = "api"
   lambda_version = var.lambda_version
-}
+}
+
+resource "aws_apigatewayv2_api" "http_api" {
+  name          = "${module.lambda_api.name}-http"
+  protocol_type = "HTTP"
+}
+
+resource "aws_apigatewayv2_integration" "lambda_proxy" {
+  api_id                 = aws_apigatewayv2_api.http_api.id
+  integration_type       = "AWS_PROXY"
+  integration_uri        = module.lambda_api.arn
+  payload_format_version = "2.0"
+}
+
+resource "aws_apigatewayv2_route" "root" {
+  api_id    = aws_apigatewayv2_api.http_api.id
+  route_key = "ANY /"
+  target    = "integrations/${aws_apigatewayv2_integration.lambda_proxy.id}"
+}
+
+resource "aws_apigatewayv2_route" "proxy" {
+  api_id    = aws_apigatewayv2_api.http_api.id
+  route_key = "ANY /{proxy+}"
+  target    = "integrations/${aws_apigatewayv2_integration.lambda_proxy.id}"
+}
+
+resource "aws_apigatewayv2_stage" "default" {
+  api_id      = aws_apigatewayv2_api.http_api.id
+  name        = "$default"
+  auto_deploy = true
+}
+
+resource "aws_lambda_permission" "allow_invoke" {
+  statement_id  = "AllowAPIGatewayInvoke"
+  action        = "lambda:InvokeFunction"
+  function_name = module.lambda_api.arn
+  principal     = "apigateway.amazonaws.com"
+  source_arn    = "${aws_apigatewayv2_api.http_api.execution_arn}/*/*" # all routes/stages
+}

infra/modules/aws/api/outputs.tf

@@ -0,0 +1,3 @@
+output "invoke_url" {
+  value = aws_apigatewayv2_api.http_api.api_endpoint
+}

infra/modules/aws/lambda/outputs.tf

@@ -0,0 +1,7 @@
+output "name" {
+  value = aws_lambda_function.lambda.function_name
+}
+
+output "arn" {
+  value = aws_lambda_function.lambda.arn
+}