How to pass parameters returned by a function to a dialog-cloud customer service system(CCS)-阿里云帮助中心

Reference the returned result of a function in the dialog flow. You can use the \${ parameter name} method to reference the specific parameter description:

Parameter Name	Parameter type	Parameter description	Writable
environment	json	See the following environment description	Read-only
lastOutputForFunction	String	Output of the previous function	Read-only
slotSummary	json	Filling value of each slot	Read-only
global	String	Global variables, defined when designing the dialogue flow, can be directly referenced or assigned during function execution.	Yes
outputForResponse	json	The function returns the result	Yes
outputForFunction	String	The output value of the current function, which can be referenced by other functions through lastOutputForFunction	Yes
routeVariable	String	The branch logic routing variable of the function node. This parameter is required when the branch logic is determined.	Yes

Description of the environment parameter

Parameters	Type	Description
SENDER_ID	STRING	Sender ID.
SENDER_NICK	STRING	Sender alias.
IS_ADMIN	STRING	Specifies whether it is an administrator of the enterprise.
SENDER_STAFF_ID	STRING	If the sender is an employee of the enterprise corresponding to the enterprise robot, the job ID of the sender in the enterprise is returned.
MEMBER_TYPE	STRING	The type of a member.
TOKEN	STRING	The token of the session.
FROM	STRING	Session sources: im_h5,group_chat,single_chat,console_im_test
FROM_SITE	STRING	FROM=group_chat,FROM_SITE is the group number

Parameter reference example: Take global variables as an example. This example illustrates how to assign values to global variables and reference them in subsequent nodes, where the variables referenced in eventObj.global ["transedOrderId"] are global variables created in the dialog. The global variable creation method, "Example writer 4", at the beginning of the function, obtains all slot nodes in the graph through slots=eventObj.slotSummary. In the next step, if the "select order intent. order_id" has a value, this value is assigned to a group of global variables, which can be referenced by nodes that need to be used later. Sample code:

NodeJS

module.exports.handler = function(event, context, callback) { 
  var eventResult = "";
  try {

      var eventObj = JSON.parse(event.toString());

      /**
      * code block
      **/
      var slots = eventObj.slotSummary;
      var slotValue=slots ["Select Order Intent. order_id"]| |'';
      console.info(null, "slotValue:" + slotValue);
      if (slotValue && slotValue !==''){
        eventObj.global["transedOrderId"] = slotValue;
      } else {
        eventObj.global["transedOrderId"] = eventObj.environment["orderId"];
      }
      console.log(eventObj.global["transedOrderId"]);

      eventResult = JSON.stringify(eventObj);
      callback(null, eventResult);
  } catch (e) {
      console.error(null, e);
      callback(null, e);
  }
};

Python

# -*- coding: utf-8 -*-
import logging
import json


def handler(event, context):
    logger = logging.getLogger()
    logger.info(event)
    eventObj = json.loads(event)

    slots = eventObj["slotSummary"]
    logger.info(slots)
    slotValue = slots["Select Order Intent. orderId"]

    if  slotValue is not None:
        eventObj["global"]["transedOrderId"] = slotValue;
    else:
        eventObj["global"]["transedOrderId"] = eventObj["environment"]["orderId"];

    return eventObj

JAVA

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;

import com.aliyun.fc.runtime.Context;
import com.aliyun.fc.runtime.PojoRequestHandler;

/**
 * Created by weili on 2018/8/2.
 *
 * @author weili
 * @date 2018/08/02
 */
public class FunctionHandler implements PojoRequestHandler<JSONObject, JSONObject> {
    @Override
    public JSONObject handleRequest(JSONObject eventObj, Context context) {

        /**
         *  eventObj structure definition
         *
         *  read-only variables
         *  "environment": "Object",
         *  "lastOutputForFunction": "String",
         *  "slotSummary": "Object",
         *
         *  read/write variables
         *  "global": "Object",
         *  "overrideResponse": "Object",
         *  "functionOutput": "String",
         *  "routeVariable": "String"
         */

        JSONObject slots = eventObj.getJSONObject("slotSummary");
        String slotValue=slots.getString ("Select order intent.order_id");
        if (null != slotValue && !"".equals(slotValue)) {
            eventObj.getJSONObject("global").get("transedOrderId") = slotValue;
        } else {
            eventObj.getJSONObject("global").get("transedOrderId") = eventObj.getJSONObject("environment").getString("orderId");
        }

        return eventObj;
    }
}