OpenSearch — Amazon OpenSearch Service

AWS docs: https://docs.aws.amazon.com/opensearch-service/latest/APIReference/

Amazon OpenSearch Service uses the REST JSON protocol, served under the /2021-01-01/ API version prefix that every OpenSearch binding carries. AWS SDKs and aws opensearch … work unmodified.

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Notes

• Routes are AWS’s own bindings. The domain surface is under /2021-01-01/opensearch/ (e.g. POST /2021-01-01/opensearch/domain), while ListDomainNames and the tag operations sit directly under /2021-01-01/.
• Domains are per-region, as on AWS: the same domain name in two regions is two domains.
• Operations that are not emulated return a JSON 501 Not Implemented error response.
• Domain records are stored, but no OpenSearch cluster is provisioned, so DomainStatus.Endpoint names a host that serves nothing.

Summary

Category	✅ Supported
Domains	5
Tags	3

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Endpoints

Domains

Operation	Status	Notes	AWS Docs
CreateDomain	✅ Supported	creates a domain, immediately active; inline TagList applied at creation; a repeat name in the same region is rejected	docs
DescribeDomain	✅ Supported	returns the stored domain; only the members an inert domain can populate honestly	docs
DescribeDomains	✅ Supported	batch describe; a name that matches nothing is omitted from the list	docs
ListDomainNames	✅ Supported	lists the region’s domains; the engineType filter is honoured, derived from each domain’s EngineVersion	docs
DeleteDomain	✅ Supported	deletes a domain and the tags attached to it	docs

Tags

Operation	Status	Notes	AWS Docs
AddTags	✅ Supported	adds tags to a resource, addressed by ARN in the body	docs
ListTags	✅ Supported	lists tags for a resource, addressed by the arn query parameter	docs
RemoveTags	✅ Supported	removes the named tag keys from a resource	docs