Azure Functions Tips & Tricks (Learned the hard way)

• Always set WEBSITE_RUN_FROM_PACKAGE to 1 (in Application Settings / Environment Variables). Without this, the function app constantly fails and takes forever to deploy (~30min vs ~3min).
  • Azure recommends this, but it isn't obvious unless you happen upon those docs.
• When using Node, all functions must be in the root in order to run locally. This means no monorepos or any form of organization when using Functions.
• In order to run locally when using queue-triggered functions, you must have a local storage emulator running. The simplest method is to install azurite globally npm i -g azurite, then just simply run azurite.
  • You can also install the VSCode function by the same name, which is also pretty simple to use.
• If you get odd eslint or prettier behavior when using the Azure extensions to generate code, try changing the line endings from CRLF to LF.