`InteractiveTransaction`: Middleware param `runInTransaction` set to `false`

Bug description

When using interactiveTransaction preview feature alongside with a middleware you won’t get the runInTransaction parameter set to true.

Despite the above issue I would want the ability to have access to the transactionPrismaClient or an afterCommit hook in params. That way I can run logic only after the transaction is committed. Sequelize equivalent of this would be: https://sequelize.org/master/manual/transactions.html#the--code-aftercommit--code--hook

How to reproduce

// schema.prisma
generator client {
  provider        = "prisma-client-js"
  previewFeatures = ["interactiveTransactions"]
}

datasource db {
  provider = "postgresql"
  url      = env("DATABASE_URL")
}

model Car {
  model String
}

// middleware.ts
export const middleware = (prisma: PrismaClient) => {
  prisma.$use(async (params, next) => {
 	console.log('params', params) // params.runInTransaction = false -> should be true
  })
}

// prisma.ts
import { middleware } from './middleware'

const prisma = new PrismaClient()
middleware(prisma)

export { prisma }

// main.js
import { prisma } from './prisma.ts'

const main = async () => {
	await prisma.$transaction(async (tPrisma) => {
		return tPrisma.car.create({ data: { model: 'abc' } })
	})
}

Expected behavior

No response

Prisma information

in How to reproduce I wrote an example

Environment & setup

• OS: Ubuntu
• Database: PostgreSQL
• Node.js version: Node v14

Prisma Version

prisma               : 2.29.1
@prisma/client       : 2.29.1
Current platform     : debian-openssl-1.1.x
Query Engine         : query-engine 1be4cd60b89afa04b192acb1ef47758a39810f3a (at node_modules/@prisma/engines/query-engine-debian-openssl-1.1.x)
Migration Engine     : migration-engine-cli 1be4cd60b89afa04b192acb1ef47758a39810f3a (at node_modules/@prisma/engines/migration-engine-debian-openssl-1.1.x)
Introspection Engine : introspection-core 1be4cd60b89afa04b192acb1ef47758a39810f3a (at node_modules/@prisma/engines/introspection-engine-debian-openssl-1.1.x)
Format Binary        : prisma-fmt 1be4cd60b89afa04b192acb1ef47758a39810f3a (at node_modules/@prisma/engines/prisma-fmt-debian-openssl-1.1.x)
Default Engines Hash : 1be4cd60b89afa04b192acb1ef47758a39810f3a
Studio               : 0.419.0
Preview Features     : interactiveTransactions

[kevinmamaqi]

Thanks @millsp and @janpio

It is fixed indeed. I must have missed a step, or had another error as now it is working as expected.

[millsp]

Hey @kevinmamaqi we have an example reproduction for this https://github.com/prisma/prisma/blob/93cecb2a4cbd0db3127cafc5880d4708407c7b12/packages/client/src/__tests__/integration/happy/interactive-transactions-sqlite/test.ts/#L400-L419