def post(url, parameters = {})
      response = connection.post do |req|
        req.url "#{api_endpoint}#{url}"
        req.headers['Content-Type'] = 'application/json'
        req.body = parameters.to_json
      end
      on_complete(response)
      response
    end
def post(url, parameters = {})
      response = connection.post do |req|
        req.url "#{api_endpoint}#{url}"
        req.headers['Content-Type'] = 'application/json'
        req.body = parameters.to_json
      end
      on_complete(response)
      response
    end
Make a HTTP POST request

 @param url [String] The path, relative to {#api_endpoint}
 @param parameters [Hash] Query params for request
 @return [Faraday::Response]