GetSnapshot - Function Compute - Alibaba Cloud Documentation Center

Operation description

Retrieves user MicroSandbox snapshot information for a specified function.
Returns snapshot details only when the snapshot belongs to the current function, its status is Available, and it has not expired.
Treats the snapshot as invisible and returns a 404 SnapshotNotFound error if the snapshot does not exist, has expired, is being created, is being deleted, is an internal snapshot, or does not belong to the current function.

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

fc:GetSnapshot

get

*All Resource

*

None

Request syntax

GET /2023-03-30/functions/{functionName}/snapshots/{snapshotId} HTTP/1.1

Path Parameters

Parameter	Type	Required	Description	Example
functionName	string	Yes	The function name.	myFunction
snapshotId	string	Yes	The snapshot ID.	8e7d6c5b-4a3f-4c1a-9b8e-1f2a3b4c5d6e

Request parameters

Parameter

Type

Required

Description

Example

No parameters required.

Response elements

Element	Type	Description	Example
	Snapshot	The snapshot resource information.

Examples

Success response

JSON format

{
  "snapshotId": "550e8400-e29b-41d4-a716-446655440000",
  "status": "Available",
  "createdTime": "2026-07-30T10:00:00Z",
  "expiredTime": "2026-08-29T10:00:00Z",
  "description": "Snapshot for production environment",
  "sourceSessionId": "custom-test-session-id",
  "functionName": "my-function",
  "qualifier": "production",
  "resolvedVersion": "1",
  "imageRepository": "registry-vpc.cn-hangzhou.aliyuncs.com/example/function",
  "imageDigest": "sha256:0123456789abcdef",
  "osType": "linux",
  "memoryMB": 3072,
  "cpu": 2,
  "diskSizeMB": 10240,
  "artifactMemUsedSizeInB": 1073741824,
  "artifactDiskUsedSizeInB": 2147483648,
  "startCommand": "/code/start.sh",
  "readyCommand": "/code/ready.sh",
  "envs": {
    "key": ""
  }
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.