I'm trying to implement the new data proxy connection string for my nextJs project and when I push to Vercel I get the error:

Error validating datasource `db`: the URL must start with the protocol

postgresql://

or

postgres://

To use a URL with protocol

prisma://

the Data Proxy must be enabled via

prisma generate --data-proxy

.

But as per the docs, I have added the line "PRISMA_GENERATE_DATAPROXY=true" into my .env.production, yet somehow it just seems ignored?

Hey @Ivan Lukianchuk 👋 Try adding

PRISMA_CLIENT_ENGINE_TYPE=dataproxy

into your

.env

file.

On the latest version, you either set

PRISMA_CLIENT_ENGINE_TYPE=dataproxy

in env variables or while generating prisma client with command

npx prisma generate

you can pass

--data-proxy

flag. So the command would be

npx prisma generate --data-proxy

.