How to use Botium HTTP(S)/JSON Connectors

Hi I am new to Botium tool, I tried connection an API based chatbot application with botium referring this doc - Botium Connectors — Botium documentation

I am getting 200 response but I am unable to build a conversation with a convo file, is it possible and how do I do it ?

my botium.json file, is this correct in first place ? -

{
“botium”: {
“Capabilities”: {
“PROJECTNAME”: “Chatbot with POST API”,
“CONTAINERMODE”: “simplerest”,
“REST_METHOD”: “POST”,
“REST_URL”: “XXXX”,
“REST_HEADERS_TEMPLATE”: {
“Authorization”: “Bearer XXX”,
“Content-Type”: “application/json”
},
“REST_BODY_TEMPLATE”: {
“messages”: [

        {"role": "user", "content": "{{msg.messageText}}"}
        
    },
    "SIMPLEREST_RESPONSE_JSONPATH": "$.response"
  }
}

}