Connecting to Google Cloud MongoDB server from Android Application

[Quass1m via StackOverflow]

I am making an amatour project in which I want to connect to Google Cloud MongoDB from an android application.

The thing I have been reading about is that it is not a good practice to connect directly to this database as it exposes it to security threats. The correct solutions given were all centered around creating a REST API (PHP, JSON, Java API) or using MEAN Stack. Something else mentioned was that I can just use Java Mongo Driver to do the job and this seems like the most convenient approach.

I have 0 experience in this matter so I really don't know where to start. Could anyone suggest the best solution in this situation?

P.S. my info source:

Should I access mongodb directly?

https://programmers.stackexchange.com/questions/256498/how-to-connect-android-app-to-mongodb-deployed-on-google-cloud

https://mongodb.github.io/mongo-java-driver/

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