PUT /2021-07-20/functions/{FunctionName}/runtime-management-config

Sets the runtime management configuration for a function's version. For more information, see Runtime updates.

Servers

Path parameters

Name Type Required Description
FunctionName String Yes

The name of the Lambda function.

Name formats

  • Function namemy-function.

  • Function ARNarn:aws:lambda:us-west-2:123456789012:function:my-function.

  • Partial ARN123456789012:function:my-function.

The length constraint applies only to the full ARN. If you specify only the function name, it is limited to 64 characters in length.

Request headers

Name Type Required Description
X-Amz-Content-Sha256 String No
X-Amz-Credential String No
Content-Type String Yes The media type of the request body.

Default value: "application/json"

X-Amz-Date String No
X-Amz-Algorithm String No
X-Amz-SignedHeaders String No
X-Amz-Security-Token String No
X-Amz-Signature String No

Query parameters

Name Type Required Description
Qualifier String No

Specify a version of the function. This can be $LATEST or a published version number. If no value is specified, the configuration for the $LATEST version is returned.

Request body fields

Name Type Required Description
RuntimeVersionArn String No

The ARN of the runtime version you want the function to use.

This is only required if you're using the Manual runtime update mode.

UpdateRuntimeOn String Yes

Specify the runtime update mode.

  • Auto (default) - Automatically update to the most recent and secure runtime version using a Two-phase runtime version rollout. This is the best choice for most customers to ensure they always benefit from runtime updates.

  • Function update - Lambda updates the runtime of your function to the most recent and secure runtime version when you update your function. This approach synchronizes runtime updates with function deployments, giving you control over when runtime updates are applied and allowing you to detect and mitigate rare runtime update incompatibilities early. When using this setting, you need to regularly update your functions to keep their runtime up-to-date.

  • Manual - You specify a runtime version in your function configuration. The function will use this runtime version indefinitely. In the rare case where a new runtime version is incompatible with an existing function, this allows you to roll back your function to an earlier runtime version. For more information, see Roll back a runtime version.

Possible values:

  • "FunctionUpdate"
  • "Manual"
  • "Auto"

How to start integrating

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  3. Click Test request to test run your request to the API and see the API's response.