Fireshaker is a CLI tool that automatically optimizes & deploys your Firebase Functions.
Usually, the more Firebase Functions you have in one project the more dependencies you add. Even the Functions that are not using these dependencies have them installed in their node_modules. This slows both cold and warm starts of your functions.
Almost always more than half of the modules can be removed. Thus the functions can start proportionally faster.
- TypeScript
When you deploy Firebase Functions the whole functions folder gets uploaded and all the dependencies in the package.json are installed even when they are not used in the function that you have deployed.
We solve that by isolating Firebase Functions that are statically exported from the index.ts then prunning their source code and dependencies. The whole process looks like this:
- Build the project using the
npm buildscript from functionspackage.json - Extract the exported Firebase Functions triggers
- For every Firebase Function that will be deployed we create a temporary copy of the functions folder and do all the following steps:
- Delete all exports except for the exported Firebase Function that will be deployed
- Delete all unreachable source files
- Delete all unused dependencies and devDependencies
- Build the project again
- Delete the Typescript source files
- Deploy the Firebase Function to the current project
Fireshaker currently supports only Firebase Functions. General Google Cloud Functions aren't supported right now but it's on the roadmap.
This will install Fireshaker as a CLI. Requires at least Node.js 10.
npm i -g fireshaker
Navigate to the root of your project (where is your firebase.json file) and deploy your functions the same way as you would with the Firebase CLI. Fireshaker respects your Firebase configuration.
Your Firebase functions need to be statically exported from your root index.ts file.
fireshaker deploy func1 func2 func3
fireshaker deploy