This is a quick and dirty PHP web application that acces google cloud datastore

Let us see how you can, step by step, set up your environment and run this app as a demo

1. Create a GCE VM in your desired region

• Use Ubuntu 14.04
• 1 vCPU and 3.75 GB of memory will suffice. I used 16 GB of persistent Stanbdard Disk as I was dealing with large datasets, you can go less if you just restrict yourself to the bestbuy dataset that this demo uses
• You will need access to Cloud Datastore API, so turn on "Allow full access to all Cloud APIs" right now, will save some time later (See number 2 in the pre-reqsuisite list here: https://cloud.google.com/datastore/docs/datastore-api-tutorial)
• Allow HTTP and HTTPS traffic
• use SSH key if you have one

2. Create a project on GCP cloud console

• Download service account cradentials JSON file for your project from https://console.developers.google.com, and save it somewhere on the VM you created
• Create an App Engine instance and deploy it - does not matter what's in it, you need this app enabled to access Datastore API-s. (See number 3 in the pre-reqsuisite list here: https://cloud.google.com/datastore/docs/datastore-api-tutorial)

3. If you have completed the above steps successfully, you should be all set to start tinkering with the VM you just now created