这里是 Twilio 开发者宣传员。
由于Collect 函数的当前 JSON bin 不允许“取消”或“重置”，因此没有简单的方法来执行此操作，但这里有一个与动态 @987654323 一起使用的潜在解决方法@（您使用 Twilio Function 在 Node.js 中编写它，而不是在 Autopilot 控制台的 JSON bin 中编写它。
下面我们有：
1. 我们需要的收集问题集（为了涵盖来自单个函数的许多收集，我们需要额外的东西，比如从数据库中提取/动态传递它们）
2.我们可以使用静态单词检查的用例的代理关键字，例如。指示用户随时键入“代理”以定向到人类。
//code courtesy of Evangelos Resvanis, Senior Solutions Engineer at Twilio
const questions = [
{
"question": "You want to book appointment?",
"name": "book"
},
{
"question": "When do you need the appointment for?",
"name": "appointment_date"
},
{
"question": "And what time?",
"name": "appointment_time"
}
];
const agent_keywords = ["agent", "i want to speak to agent", "let me talk to someone"];
var stringSimilarity = require('string-similarity');
const COLLECT_TASK = "collect_task";
/*************************** Main Function ********************/
/*
This function generates the collect questions in steps. Each step we enter the function again and check the user input. We keep a counter to exit when
the collect questions are exhausted.
Two main use cases examined (any use case can be built)
- We want to break the collect on specific user input/keywords e.g. "agent". We use string comparison (Use Case 1)
- We want to send the user input to the Queries API to see if they provided fields. We use the API to avoid the Collect validate, as we can't break the Collect
from there (Use Case 2)
Uncomment/comment each use case to examine the results.
*/
exports.handler = function(context, event, callback) {
let count;
//If event.count is set, then we are at least in the first answer from the collect list
if(event.count) {
count = parseInt(event.count);
//Use case 1
/*var matches = stringSimilarity.findBestMatch(event.CurrentInput, agent_keywords);
if (matches.bestMatch.rating > 0.5){
callback(null, {"actions": [{"say": "Sure, handing over to one of our agents now..."}]});
}
else buildCollect(count);*/
//Use case 2
getFieldsOrNextTask(event.CurrentInput, count);
}
else {count = 1;buildCollect(count, null);}
/*
Send the user input to Queries endpoint
- If there are fields and confidence is high, assume user input is ok, remember the value and continue to next question (improvement: check the exact type of field found)
- If there are no fields, check the results of the task and confidence, assuming the user wants to break the collect. Choose the target task based on rules you test, excluding the collect task
*/
async function getFieldsOrNextTask(input, count){
const client = require('twilio')(context.ACCOUNT_SID, context.AUTH_TOKEN);
let fields_result = await client.autopilot.assistants(context.AUTOPILOT_SID).queries.create({language: 'en-US', query: input, tasks: COLLECT_TASK});
if(fields_result.results.task_confidence < 0.4 || !fields_result.results.fields.length){
let all_tasks_string = "";
let tasks = await client.autopilot.assistants(context.AUTOPILOT_SID).tasks.list();
for(let i = 0; i < tasks.length; i++){
if (tasks[i].uniqueName === COLLECT_TASK)continue;
let name = tasks[i].uniqueName;
let unique_name = i === tasks.length-1 ? name : name + ",";
all_tasks_string += unique_name;
}
console.log("All tasks without the Collect task: " + all_tasks_string);
let task_result = await client.autopilot.assistants(context.AUTOPILOT_SID).queries.create({language: 'en-US', query: event.CurrentInput, tasks: all_tasks_string});
let task_confidence = task_result.results.task_confidence;
let chosen_task = parseFloat(task_confidence) < 0.4 && !task_result.results.next_best_task ? "fallback": task_result.results.task;
console.log("Chosen new task to break Collect is: " + chosen_task);
callback(null, {"actions": [{"redirect": "task://" + chosen_task}]});
}
else{
console.log("seemed a valid field of the Collect task, remember it and move to next question");
buildCollect(count, event.CurrentInput);
}
}
function buildCollect(count, userInputToRemember){
console.log("Current count: " + count);
if(count > questions.length){
callback(null, {"actions": [{"say": "Thank you, that is the end of our questions, moving to the next part of the flow"}]});
}
else{
//Create the current collect object and increase the count in on_complete for the next iteration
let name = "collect_" + count;
let on_complete = {
"redirect": "https://" + context.DOMAIN_NAME + "/dynamic-collect?count=" + (count+1)
};
let collect_object = {};
collect_object.name = name;
collect_object.questions = [];
collect_object.questions[0] = questions[count-1];
collect_object.on_complete = on_complete;
console.log("Current Collect object: " + JSON.stringify(collect_object));
if(userInputToRemember){
let remember_var = questions[count-1].name;
console.log(remember_var);
callback(null, {"actions": [{"remember": {remember_var: userInputToRemember}},{"collect": collect_object}]});
}
else{
callback(null, {"actions": [{"collect": collect_object}]});
}
}
}
};
让我知道这是否有帮助！