# Assertion
<a name="API_Assertion"></a>

Represents a resilience assertion for a service.

## Contents
<a name="API_Assertion_Contents"></a>

 ** assertionId **   <a name="ngresiliencehub-Type-Assertion-assertionId"></a>
The unique identifier of the assertion.  
Type: String  
Length Constraints: Fixed length of 36.  
Pattern: `[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}`   
Required: Yes

 ** serviceArn **   <a name="ngresiliencehub-Type-Assertion-serviceArn"></a>
ARN identifier.  
Type: String  
Length Constraints: Minimum length of 31.  
Pattern: `arn:(aws|aws-cn|aws-iso|aws-iso-[a-z]{1}|aws-us-gov):[A-Za-z0-9][A-Za-z0-9_/.-]{0,62}:([a-z]{2}-((iso[a-z]{0,1}-)|(gov-)){0,1}[a-z]+-[0-9]):[0-9]{12}:[A-Za-z0-9/][A-Za-z0-9:_/+.-]{0,1023}`   
Required: Yes

 ** source **   <a name="ngresiliencehub-Type-Assertion-source"></a>
The source of the assertion, indicating whether it was AI-generated or created by a user.  
Type: String  
Valid Values: `AI_GENERATED | USER`   
Required: Yes

 ** text **   <a name="ngresiliencehub-Type-Assertion-text"></a>
The text content of the assertion.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 1000.  
Required: Yes

 ** createdAt **   <a name="ngresiliencehub-Type-Assertion-createdAt"></a>
The timestamp when the assertion was created.  
Type: Timestamp  
Required: No

 ** updatedAt **   <a name="ngresiliencehub-Type-Assertion-updatedAt"></a>
The timestamp when the assertion was last updated.  
Type: Timestamp  
Required: No

## See Also
<a name="API_Assertion_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/resiliencehubv2-2026-02-17/Assertion) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/resiliencehubv2-2026-02-17/Assertion) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/resiliencehubv2-2026-02-17/Assertion)