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I've created some very simple Azure functions. They read and write data from Couchbase (which is running in Azure on a VM).

I'm concerned about the connection(s) that I make to Couchbase in an Azure Function. I create a Cluster object each time. This is an expensive operation, and I would typically only do it once in a normal web app. But in the Azure Function, I'm newing it up every time.

There are a lot of expensive to instantiate objects like this beyond just Couchbase. Is there way to create a singleton, or some sort of shared object that Azure Functions can reuse between calls?

• You can see a description of what I'm doing here: https://blog.couchbase.com/azure-functions-couchbase-server/
• The full source code here: https://github.com/couchbaselabs/blog-source-code/tree/master/Groves/074AzureFunctions/src/CouchbaseWithAzureFunctions

I saw react + express project code here, start project just using this codes.

• rm -rf build public/bundle.js
• ./node_modules/.bin/babel server --out-dir build
• ./node_modules/.bin/webpack --progress
• node ./build/main.js"

But I can't find how to read/execute webpack.config.js command. Who read this code? and how it works?