{
    "uid": "[Your User ID]",
    "key": "[Your API key]",
    "chatbody": [
        {
            "usr": "What is capital of Pakistan?",
            "bot": "The capital of Pakistan is Islamabad."
        },
        {
            "usr": "What is capital of France?",
            "bot": "The capital of France is Paris."
        },
        {
            "usr": "What have i asked you earlier?",
            "bot": null     // last bot parameter must be null (as JSON null)
        }
    ]
}

{
  'Content-Type': 'application/json'
}

{
    "success": true,
    "message": "Success!",
    "response": "You asked about the capital of Pakistan earlier."
}