How to solve IP canonicalization on Google App Engine Services? - google-app-engine

I am using Google App engine with Koa.js frameowork, I want to determine what is the ip address that I can use to access my service so that I can implement a redirect in my application.
I am doing this because seositecheckup gives me an error / warning about this and now I am curious what is the IP address for my service
Thanks

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How can I give my Flask App in GCP access to an external Network?

I have a Flask app that is hosted in the Google App Engine. It wants to establish a TCP connection to a server on my local network to send data to the app. Unfortunately, my app can't connect to the server just like that because the IP address of the server is not public.
Unfortunately, I can't find a solution here. Can anyone give me a hint what I need to be able to connect to my network?
On the one hand it would be easier to make the IP address publicly available, but I really want to avoid that.
I would be glad about any help.
You need to create a VPN between your Google Cloud VPC and your private server. Then add a serverless VPC connector to App Engine to route private traffic through it.

How to use a proxy/ Tunnelling VM to communicate between a user and APP Engine?

Usecase- An Angular and node js application is hosted on google app engine standard environment and it has been secured using an IP whitelist. How to use a static IP compute engine such that any user who has access to that compute engine only can open the APP engine link?
Problem- The IP of the user is dynamic and changes frequently throughout the day and hence it becomes an overhead to whitelist the new IP for every change in the IP.
Ask- How to use a compute engine such that it acts as a proxy to forward any request coming to http://[compute-engine-public-ip]:80 to xxxx.appspot.com?
Note- Google APP engine IAP is not to be used because emails are not required.

How to setup a STATIC IP ADDRESS while using Google App Engine

I have an application running on Google Cloud's App Engine(flexible environment).
An external API that deals with finances requires us to have a static external IP address so that we may interact. I know App Engine doesn't have an external IP address feature.
I'm also aware that using Google Cloud's Compute Engine, a VM instance with a static IP can be set up.
Is there anyone that has run into this situation and figured out an efficient solution?
As the FAQ for Google App Engine says, App engine does not support static IP.
The only workaround is to use a VM with an static ip to be as a proxy. There is a discussion here.

Setup Google Compute Engine to only be accessible from a Google App Engine application?

Google Compute Engine instances can be secured behind a firewall that allows you to open the instance by ports and/or IP addresses.
Google App Engine doesn't use a single IP address.
I have a Compute Engine server running Nginx that I would like to completely lock down so the only way to access it is through an application on Google App Engine, is this possible?
If not, is there a simple way to send a POST request with a string of characters to Nginx, that if not present, the Nginx server would send people to a 404?
Use HTTP authentication as per the question Dan has linked to. There is no viable network/IP/firewall mechanism to restrict access.
The HTTP authentication works just fine!

Best practise for developing Google App Engine OAuth2 Java API application on local machine

I'm trying to debug a Google App Engine project locally and that application uses Google's OAuth2 API access (Google Drive access). I mapped a sub-domain to 127.0.0.1 in my hosts file and ensured that sub-domain didn't return a 404 publicly (Google does a basic test to see if there's anything there at the redirect location) and the redirect correct executes the servlet on my local machine.
The problem is that I seem to have an anonymous quota now and quickly exceeded my limit for the day. Is there a way to link me to my account with this setup to get the non-anonymous quota?
Need to enable Drive API in addition to Drive SDK in Google APIs Console

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