Hello,
You can deploy different services/versions and communicate internally when using App Engine Flex, as Flex instances are similar to GCE instances you can configure Firewall rules and add a network tag on a VPC network to control access to your services. Please look at this document <https://cloud.google.com/appengine/docs/flexible/python/reference/app-yaml#network_settings>for a reference on how to configure your app.yaml file to specify a network tag. This will work for Flex to Flex services. For App Engine Standard, you can send targeted HTTP requests to communicate with another service. Please take a look at our documentation <https://cloud.google.com/appengine/docs/standard/python/communicating-between-services> about this specifically for App Engine Standard which may list other alternatives. App Engine services can also communicate using Cloud Pub/Sub, which provides reliable asynchronous many-to-many messaging between processes. On Thursday, March 25, 2021 at 11:48:15 AM UTC-4 robbe...@gmail.com wrote: > Hi. > > It is possible to deploy an API built in two different languages (Node.js > and Python here) as one service? > > If not, how fast is it to communicate between two services compared to it > with external server? > > According to the previous post and documentation below, I think it should > be deployed as two separate services and communicate each other through an > HTTP invocation. > > However, I'd like to know some solutions to the issue if exists, as it is > important for my app to response to client immediately. > > Thank you. > > > Previous post: Multiple languages in the same application > https://groups.google.com/g/google-appengine/c/wZZAgKN8BwU > > Google Documentation (especially "App Engine Services as microservices" > section): > > https://cloud.google.com/appengine/docs/standard/python/microservices-on-app-engine > > > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/6399c1e4-26a1-4440-bed3-4e02438b2583n%40googlegroups.com.
