Question 1

How to handle database migrations with LiteDB.FSharp?

Accepted Answer

LiteDB.FSharp does not provide built-in migration tools; since LiteDB is schema-less, you need to manage schema changes manually in your F# code or use LiteDB's native document update features, which can be error-prone for complex evolutions.

Question 2

Can LiteDB.FSharp be used with ASP.NET Core in F#?

Accepted Answer

Yes, it integrates well by setting up the LiteDatabase instance with FSharpBsonMapper in the startup configuration, similar to other .NET services, making it suitable for lightweight web applications with local data storage.

Question 3

What are the limitations of LiteDB.FSharp with inheritance?

Accepted Answer

Inheritance requires global registration of types and mutable fields, and the library uses field name matching for deserialization, which can break if inherited types have different field names, as warned in the README examples.

Question 4

How to query nested discriminated unions in LiteDB.FSharp?

Accepted Answer

Use the `Query.Where` method with `Bson.deserializeField` to deserialize and pattern-match nested DUs, as shown in the Shape example with Composite types, though this adds runtime complexity.

Question 5

LiteDB.FSharp vs Entity Framework Core for F# – which is better?

Accepted Answer

LiteDB.FSharp is best for embedded, NoSQL scenarios with strong F# type safety, while Entity Framework Core suits relational databases with ORM features; choose based on data model (NoSQL vs. SQL) and scalability needs.

Question 6

How to set up auto-increment IDs in LiteDB.FSharp?

Accepted Answer

Apply the `CLIMutableAttribute` to your record type and initialize the `Id` field to 0; LiteDB.FSharp will handle auto-incrementing, as demonstrated in the album example, but this requires mutable records.

LiteDB.FSharp

What is LiteDB.FSharp?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions