This Prebuilt Deployment example demonstrates how to output Vercel Serverless Functions using the Build Output API.
https://build-output-api-serverless-functions.vercel.sh
In this case, the contents of the Serverless Function are located in the
.vercel/output/functions/index.func directory.
This means that the Serverless Function will be accessible at the /index (or /) path of the Deployment.
The .vc-config.json file specifies "runtime": "nodejs14.x"
which informs Vercel that the endpoint should be created as a Serverless Function, using Node.js version 14.
The "handler": "index.js" field indicates that the index.js
source code file will be the starting point of execution when the Serverless Function is invoked.
Additional files may placed within the index.func file as well which will be included in the runtime environment
of the Serverless Function. In this case, there is also a node_modules directory
that contains dependencies that the example Serverless Function needs in order to operate.
A second Serverless Function is also included at the path
.vercel/output/functions/another.func. In this case, it is represented by using
a symbolic link that points to the index.func directory. Because it is a
symlink, Vercel will optimize this by only creating one backing Serverless
Function which is served at both URL paths.
Run the Vercel CLI from the project root with:
vercel deploy --prebuilt