RxDBCollectionConfig

type RxDBCollectionConfig<T, TSchema> = Omit<BaseCollectionConfig<T, string, TSchema>, "onInsert" | "onUpdate" | "onDelete" | "getKey"> & object;

Defined in: rxdb.ts:50

Configuration interface for RxDB collection options

Type Declaration

rxCollection

rxCollection: RxCollection<T, unknown, unknown, unknown>;

The RxCollection from a RxDB Database instance.

syncBatchSize?

optional syncBatchSize: number;

The maximum number of documents to read from the RxDB collection in a single batch during the initial sync between RxDB and the in-memory TanStack DB collection.

Remarks

• Defaults to 1000 if not specified.
• Larger values reduce the number of round trips to the storage engine but increase memory usage per batch.
• Smaller values may lower memory usage and allow earlier streaming of initial results, at the cost of more query calls.

Adjust this depending on your expected collection size and performance characteristics of the chosen RxDB storage adapter.

Type Parameters

T

T extends object = Record<string, unknown>

The explicit type of items in the collection (highest priority). Use the document type of your RxCollection here.

TSchema

TSchema extends StandardSchemaV1 = never

The schema type for validation and type inference (second priority)

Remarks

Type resolution follows a priority order:

1. If you provide an explicit type via generic parameter, it will be used
2. If no explicit type is provided but a schema is, the schema's output type will be inferred

You should provide EITHER an explicit type OR a schema, but not both, as they would conflict. Notice that primary keys in RxDB must always be a string.