add health check

main.odin

@@ -128,6 +128,16 @@ parse_access_key_from_auth :: proc(auth_header: string) -> (access_key: string,
 
 // DynamoDB request handler - called for each HTTP request with request-scoped arena allocator
 handle_dynamodb_request :: proc(ctx_raw: rawptr, request: ^HTTP_Request, request_alloc: mem.Allocator) -> HTTP_Response {
+	// fast health check no auth and no body
+	if request.path == "/health" {
+		response := response_init(request_alloc) // HEAD requests dont need a body
+		// GET fallback
+		if request.method != .HEAD {
+			response_set_body(&response, transmute([]byte)string("1")) // GET needs a body :(
+		}
+		return response
+	}
+
 	// Snag the engine from the ctx wrapper
 	ctx := cast(^Handler_Context)ctx_raw
 	engine := ctx.engine