---
title: "ExtensionSession"
description: "the extension's sign-in: the person, the tenant, the token's expiry, the transport in use and the contract hash the server reports"
section: concepts
address: /concepts/extensionsession
contract: 0476e35e6e275db5
---

# ExtensionSession

the extension's sign-in: the person, the tenant, the token's expiry, the transport in use and the contract hash the server reports

[figure: ExtensionSession is a value at none scope. The drawing shows its fields and the objects that they point at.]

| property | value |
|---|---|
| kind | value |
| scope | none |
| key | none |
| store | none |
| family | sources |



## Fields


| field | type | required | note |
|---|---|---|---|
| `person` | `id` | yes |  |
| `tenant` | `id` | yes |  |
| `expires` | `time` | yes |  |
| `transport` | `one of loopback \| gateway` | yes |  |
| `contract_hash` | `hash` | yes |  |



## Routes that use it
No route takes or returns ExtensionSession directly. The record holds it, and the objects that point at it reach it.