Preview Deployments
Convex preview deployments allow your team to test out backend changes before pushing them to production.
In combination with Vercel Preview Deployments or Netlify Deploy Previews, you can preview both frontend and backend changes together.
Convex preview deployments require a Convex Professional Plan.
Convex preview deployments are currently a beta feature. If you have feedback or feature requests, let us know on Discord!
Setup
Follow the Vercel or Netlify hosting guide for setting up frontend and backend previews together, as well as details on how Convex preview deployments work.
See npx convex deploy --help for all available options for
npx convex deploy.
Limits
Convex preview deployments are automatically cleaned up 14 days after creation, or when a new preview deployment with the same name is created. They can also be manually deleted from the Convex dashboard.
When a Convex preview deployment is deleted, the Vercel/Netlify preview link will open and show UI, but will be unable to run any Convex functions since it is pointing at a Convex deployment that no longer exists. In these cases, re-deploying in Vercel/Netlify should produce a link pointing at a new Convex deployment.
Convex allows a single deployment at a time for a given name (Git branch). When pushing updates to an existing branch, the deployment will be deleted, resulting in a preview link unable to run Convex functions, before it is replaced by a new Convex deployment.
Initial data can be set up on a Convex preview deployment by running a function. There are currently no other ways to set up data on a Convex preview deployment -- viewing changes against a copy of production data or importing data from a different Convex deployment is not supported.
Note that if the function call fails, the deploy command will fail, but the
new preview deployment will have already been provisioned. Best course of action
is to fix the issue in the function and redeploy.
Support for preview deployments is a beta feature, so let us know on Discord if you have feedback!