# Object Ids

Every object is uniquely identifiable, by a standardized UUIDv7.

This datatype works across MSSQL, PostgreSQL, SQLite, and Typescript/JavaScript (as string).

#### In Service and Storage

In API, services, and backend storage, an object's ID is created as an UUIDv7.

And, it is handled and stored as a GUID.

#### Id Over The Wire

Over the wire, an object id can be passed in Guid form.

But a more useful way is to return it in a form, similar to a MoRef.

This is a two-term string of type and Id:

<objecttype>:<objectid>

The type is a shorthand type, recognizable by a UI.

And, the objectid is a condensed version of the object's Id (its UUIDv7 Id).  
This objectid is encoded with the NanoId library, which creates condensed Base64 versions of UUID.

#### Benefits

Here are the benefits of the design choice, above.

- Resources/Object are identified by UUIDv7.
- A UUIDv7 is time sortable.
- It is an acceptable key type for PostgreSQL, MSSQL, SQLite, and JS libraries.
- Client UIs can mint object Ids, that are acceptable by the backend.