Question 1

Bun vs GORM: which is better for Go?

Accepted Answer

Bun is better if you prioritize SQL transparency and need multi-database support with type safety, while GORM offers a more abstracted, active-record style with a larger ecosystem. Choose Bun for complex queries and control, GORM for rapid development with less SQL.

Question 2

How to handle transactions in Bun ORM?

Accepted Answer

Use Bun's built-in transaction support via db.RunInTx or similar methods, which allow you to wrap operations in a transaction block. This ensures atomicity and rollback on errors, similar to standard database/sql but with Bun's query builder.

Question 3

Does Bun support raw SQL queries?

Accepted Answer

Yes, Bun fully supports raw SQL queries through methods like db.Query or db.Exec, allowing you to bypass the query builder when needed. This maintains flexibility while still benefiting from Bun's scanning and type safety features.

Question 4

Can I use Bun with GraphQL in Go?

Accepted Answer

Yes, Bun can be integrated with GraphQL in Go by using it as the data layer to fetch and mutate data. Its flexible scanning and relationship loading make it suitable for resolving GraphQL queries efficiently, though you'll need to handle mapping manually.

Question 5

Bun ORM performance benchmarks vs raw SQL

Accepted Answer

Bun adds minimal overhead over database/sql, so performance is close to raw SQL for most use cases. However, in highly performance-critical scenarios, raw SQL might be slightly faster due to reduced abstraction layers, as noted in community discussions.

Question 6

How to set up OpenTelemetry with Bun?

Accepted Answer

Bun has built-in OpenTelemetry support via the bunotel package; add it as a query hook to automatically trace queries. This provides distributed tracing for monitoring performance and debugging in production environments, as shown in the README examples.

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