Question

Shall I use digital ocean functions opposing to a server?

I have a simple nodejs server that all it does is receive requests to add/modify/delete data from a mongodb database (hosted by mongodb) and returns a response.

Can I rely on functions for something such simple yet important? Will the functions be able to handle any traffic scalably? ex (10k input outputs/second?)

If yes, where can I get started to learn how to convert my app into functions with NodeJS?


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Hi there,

Indeed this sounds like a good use-case for a serverless function. The main thing that I would recommend considering is the current limitations here:

Functions have the following limits:

  • The maximum execution duration is 30 seconds each for initialization and function execution.

  • The maximum size of input parameters is 1 MB.

  • The maximum size of result responses is 1 MB.

  • The maximum size of artifacts is 48 MB.

  • Memory is limited from 128 MB – 1 GB, defaulting to 256 MB.

If you fit withing those limits, then you should give it a try!

Regarding the getting started guides, I would recommend starting with the following guide:

https://docs.digitalocean.com/products/functions/how-to/create-functions/

Then after that, here are some sample NodeJS functions that you could also take a look at to get you up to speed:

https://github.com/digitalocean/sample-functions-nodejs-helloworld

https://github.com/digitalocean/sample-functions-nodejs-qrcode

Hope that this helps!

Best,

Bobby