Programmatic control

Inject the TransactionHost for imperative control without the decorator:

import { PrismaAdapter, TransactionHost } from '@nestjs-transactions/prisma';

constructor(private readonly txHost: TransactionHost<PrismaAdapter>) {}

await this.txHost.withTransaction(async () => {
  /* ... */
});
this.txHost.isTransactionActive();
this.txHost.tx; // the current transaction client

For a named connection, inject with @InjectTransactionHost('analytics').

Injecting the raw transaction client

Alternatively, inject the raw active-transaction client directly with @InjectTransaction(). This requires enableTransactionProxy: true in forRoot(); outside a transaction it falls back to the base client:

import { InjectTransaction, Transaction, PrismaAdapter } from '@nestjs-transactions/prisma';

// forRoot({ ..., enableTransactionProxy: true })

constructor(@InjectTransaction() private readonly tx: Transaction<PrismaAdapter>) {}

@Transactional()
async create(email: string) {
  await this.tx.user.create({ data: { email } });
}