The following list of request parameters only lists interface request parameters and some public parameters, For a complete list of public parameters see public request parameters.

Parameter name	Required	Allow NULL	Type	Description
Action	Yes	No	String	Public parameter, The value of this interface: DescribeLaunchTemplatesInfo
Version	Yes	No	String	Public parameter, The value of this interface: 2017-03-12
Region	No	No	String	Public parameter,Regional information A list of supported geographies is available through the DescribeRegions interface
LaunchTemplateIds	No	No	Array of String	Launch template ID, one or more launch template IDs. If it is not specified, all templates of the user will be displayed by default. Example: ["lt-k8wrok8e"]
Filters	No	No	Array of Filter	Filter by [LaunchTemplateName]. Example:View
Offset	No	No	Int64	Offset, 0 by default. Example: 0
Limit	No	No	Int64	Number of returns, 20 by default, and the maximum value is 100. Example: 20

3. Output Parameters

Parameter name	Type	Description
TotalCount	Int64	Number of eligible instance templates. Note: This field may return null, indicating that no valid values can be obtained. Example: 50
LaunchTemplateSet	Array of LaunchTemplatesInfo	List of detailed information of instances. Note: This field may return null, indicating that no valid values can be obtained. Example:View
LaunchTemplateInfoSet	Array of LaunchTemplatesInfo	List of detailed information of instances. Note: This field may return null, indicating that no valid values can be obtained. Example:View
RequestId	String	Unique request id, Each request will return. The RequestId of the request needs to be provided when locating the problem.

4. Error Code

The following lists only the error codes related to the interface business logic, For other error codes, see public ErrorCode.

Error Code	Description
InvalidFilter	Invalid filter.
InvalidParameterValue.LaunchTemplateIdMalformed	The format of the instance launch template ID is incorrect.
InvalidParameterValue.LaunchTemplateIdNotExisted	The instance launch template ID does not exist.
InvalidParameterValue.LaunchTemplateIdVerNotExisted	The combination of the instance launch template and version ID does not exist.
InvalidParameterValue.LaunchTemplateNotFound	The instance launch template was not found.
InvalidParameterValue.LaunchTemplateVersion	Version number of invalid instance launch template.
InvalidParameterValue.InvalidLaunchTemplateName	The format of the instance launch template name is incorrect.
InvalidParameter	Invalid parameter. The parameter does not meet the requirements, is not supported, or the like.