Annotation API in elasticsearch in kibana for transactions

Elastic Stack Kibana
, ,
1

Need help on Annotation API on transactions in Elasticsearch. I have tried to create for one of my .Net service below is the code I run in kibana dev tools:

POST /api/apm/service/1ACT/annotation
{
-H 'Content-Type: application/json' \
-H 'kbn-xsrf: true' \
-H 'Authorization: Basic ${API_KEY}' \ 
-d '{
      "@timestamp": "2024-05-10 12:00:00", 
      "service": {
        "version": "1.2" 
      },
      "message": "Deployment of 1.2" 
    }'
}

Error:
Error code 400,
Bad request.

I have tried without braces after post and by adding kbn:/api/APM/service/annotation. Still no use.
Please help out how to resolve this issue
2

Here, we trying to annotate as per deployment date. But what ever I tried it's still has bad request error. Could some one help here ? What's the wrong I am giving in post syntax ?

3

Can someone help here ?