[graphememes]

You could do this with a free serverless function on aws, why would I pay for it

[viraptor]

To save time you'd otherwise spend writing and testing the serverless function. This applies to literally every SaaS.

[graphememes]

This isn't particularly a hard thing to do, and the testing framework is pretty much baked into AWS. There are libraries to do this already.

You do you though.