> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bijection.com/llms.txt
> Use this file to discover all available pages before exploring further.

# dataModel.d.ts

> Generated TypeScript types for your database schema and documents

<Warning>
  **This code is generated**

  These exports are not directly available in the `bijection` package!

  Instead you must run `bijection dev` to create
  `bijection/_generated/dataModel.d.ts`.
</Warning>

Generated data model types.

## Types

### TableNames

Ƭ **TableNames**: `string`

The names of all of your Bijection tables.

***

### Doc

Ƭ **Doc**`<TableName>`: `Object`

The type of a document stored in Bijection.

#### Type parameters

| Name | Type | Description |
| :- | :- | :- |
| `TableName` | extends [`TableNames`](#tablenames) | A string literal type of the table name (like "users"). |

***

### Id

An identifier for a document in Bijection.

Bijection documents are uniquely identified by their `Id`, which is accessible on
the `_id` field. To learn more, see [Document IDs](/database/document-ids).

Documents can be loaded using `db.get(tableName, id)` in query and mutation
functions.

IDs are just strings at runtime, but this type can be used to distinguish them
from other strings when type checking.

This is an alias of [`GenericId`](/api/modules/values#genericid) that is typed
for your data model.

#### Type parameters

| Name | Type | Description |
| :- | :- | :- |
| `TableName` | extends [`TableNames`](#tablenames) | A string literal type of the table name (like "users"). |

***

### DataModel

Ƭ **DataModel**: `Object`

A type describing your Bijection data model.

This type includes information about what tables you have, the type of documents
stored in those tables, and the indexes defined on them.

This type is used to parameterize methods like
[`queryGeneric`](/api/modules/server#querygeneric) and
[`mutationGeneric`](/api/modules/server#mutationgeneric) to make them type-safe.