main.swift

func botReply(channelType: String, channelId: String, botId: String, completion: @escaping () -> Void) {
    let apiKey = "[insert_your_api_key_here]"
    let jwt = "[insert_your_jwt_here]"
    
    let response = [
        "I am a bot",
        "Beep boop",
        "Having trouble?",
        "I can help"
    ].randomElement() ?? ""
    
    let url = URL(string: "https://chat-us-east-1.stream-io-api.com/channels/\(channelType)/\(channelId)/message?api_key=\(apiKey)")!
    var request = URLRequest(url: url)
    request.allHTTPHeaderFields = ["Authorization": jwt, "stream-auth-type": "jwt"]
    
    request.httpMethod = "POST"
    request.httpBody =
    """
        {
          "message" : {
              "text" : "\(response)",
              "silent" : false,
              "user_id": "\(botId)"
          }
        }
    """.data(using: .utf8)
    
    let task = URLSession.shared.dataTask(with: request) { _,_,_ in
        completion()
    }
    
    task.resume()
}