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

# Refreshes existing user session

> Refreshes an existing session, thus extending the expiration time of the existing session token.

## OpenAPI

````json POST /v1/sys/session/refresh
{
  "openapi": "3.0.4",
  "info": {
    "title": "Confidential Computing Manager",
    "description": "Fortanix Confidential Computing Manager Backend. These are APIs using which the frontend and other clients (compute node agents) interact with Fortanix Confidential Computing Manager functionalities, which include compute node and app enrollment, attestation and signing, and Certificate Authority.",
    "termsOfService": "https://www.fortanix.com/legal/terms/",
    "contact": {
      "name": "Fortanix Support",
      "url": "https://support.fortanix.com/hc/en-us/categories/360003107511-Confidential-Computing-Manager",
      "email": "support@fortanix.com"
    },
    "license": {
      "name": "Apache 2.0",
      "url": "http://www.apache.org/licenses/LICENSE-2.0.html"
    },
    "version": "2.0.0"
  },
  "servers": [
    {
      "url": "https://ccm.fortanix.com"
    }
  ],
  "paths": {
    "/v1/sys/session/refresh": {
      "post": {
        "tags": [
          "Auth"
        ],
        "summary": "Refreshes existing user session.",
        "description": "Refreshes an existing session, thus extending the expiration time of the existing session token.",
        "operationId": "refresh",
        "responses": {
          "200": {
            "description": "Refreshed Session Info.",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/RefreshResponse"
                }
              }
            }
          }
        },
        "security": [
          {
            "bearerToken": []
          }
        ],
        "x-auth-resource": "NoAuth"
      }
    }
  },
  "components": {
    "schemas": {
      "RefreshResponse": {
        "required": [
          "session_info"
        ],
        "type": "object",
        "properties": {
          "session_info": {
            "$ref": "#/components/schemas/SessionInfo"
          }
        }
      },
      "SessionInfo": {
        "required": [
          "subject_id",
          "session_expires_at",
          "session_token_expires_at"
        ],
        "type": "object",
        "properties": {
          "subject_id": {
            "type": "string",
            "format": "uuid"
          },
          "session_expires_at": {
            "type": "integer",
            "description": "Timestamp of when session will expire.",
            "format": "int64"
          },
          "session_token_expires_at": {
            "type": "integer",
            "description": "Timestamp of when session token will expire.",
            "format": "int64"
          },
          "selected_account_id": {
            "type": "string",
            "description": "The selected account ID, if one is selected.",
            "format": "uuid"
          }
        }
      }
    },
    "securitySchemes": {
      "bearerToken": {
        "type": "apiKey",
        "description": "A JWT bearer token to be passed once authenticated.",
        "name": "Authentication",
        "in": "header"
      }
    }
  }
}
````