BA
Better Auth•3w ago
Larb

Is there a way to pass a transaction (tx) into Better Auth APIs?

I’d like to create a custom signup flow without relying on the built-in beforeSignUp or afterSignUp hooks. I want to build a separate API endpoint so that I can fully customize the request and response structure. My goal is to perform some custom database operations (for example, creating basic data) before calling the Better Auth signup logic — and wrap everything inside a single transaction for consistency. 
 typescript
return prisma.$transaction(async (tx) => {
  // custom pre-signup logic
  await tx.userBase.create({ ... });

  // ideally, I want to call Better Auth signup using this transaction
  await auth.api.signUpEmail(...);
});
 typescript
return prisma.$transaction(async (tx) => {
  // custom pre-signup logic
  await tx.userBase.create({ ... });

  // ideally, I want to call Better Auth signup using this transaction
  await auth.api.signUpEmail(...);
});
Is there any way to pass the Prisma transaction (tx) into Better Auth APIs, so that if any step fails (either my pre-signup logic or Better Auth’s internal user creation), the whole process rolls back? I’ve read through the documentation, but I couldn’t find any examples or explanations about how transactions are handled internally — https://www.better-auth.com/docs/guides/create-a-db-adapter#transaction
Create a Database Adapter | Better Auth
Learn how to create a custom database adapter for Better-Auth
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