Node.js Dialogflow webhook意向响应中的OpenSearch调用不返回数据
我正在开发一个应用程序,从Dialogflow聊天中检索图书馆目录中的数据。我没有收到任何错误,我有一个帐单帐户附加到服务。意图代码如下:Node.js Dialogflow webhook意向响应中的OpenSearch调用不返回数据,node.js,google-cloud-functions,dialogflow-es,opensearch,Node.js,Google Cloud Functions,Dialogflow Es,Opensearch,我正在开发一个应用程序,从Dialogflow聊天中检索图书馆目录中的数据。我没有收到任何错误,我有一个帐单帐户附加到服务。意图代码如下: const {WebhookClient} = require('dialogflow-fulfillment'); const function = require('firebase-functions'); const agent = new WebhookClient({ request: request, response: response })
const {WebhookClient} = require('dialogflow-fulfillment');
const function = require('firebase-functions');
const agent = new WebhookClient({ request: request, response: response });
const catalogSearch = require("rss-to-json");
exports.libraryChat = functions.https.onRequest(request, response) => {
function catalog_search(agent) {
var itemSubject = agent.parameters["item-subject"] ? "+" + agent.parameters["item-subject"] : "";
var itemTitle = agent.parameters["item-title"] ? "+" + agent.parameters["item-title"] : "";
var chatResponse = "";
var itemList = new Array();
if (agent.parameters["author-name"]) {
var authorName = agent.parameters["author-name"]["name"] ? "+" + agent.parameters["author-name"]["name"] + " " + agent.parameters["author-name"]["last-name"] : "+" + agent.parameters["author-name"]["last-name"];
}
var searchString = "";
if (itemSubject.length > 0) { searchString = searchString + itemSubject; }
if (itemTitle.length > 0 ) { searchString = searchString + itemTitle; }
if (authorName.length > 0) { searchString = searchString + authorName; }
var url = "https://gapines.org/opac/extras/opensearch/1.1/-/rss2-full?searchTerms=site(GCHR-CCO)" + searchString + "&searchClass=keyword";
console.log(url);
catalogSearch.load(url, (err, jsonResponse) => {
if (!err) {
itemList = jsonResponse.items;
chatResponse = "The first ten items returned for your search are: ";
}
else {
chatResponse = "I'm sorry! I've encountered an error while retrieving that data!";
}
});
itemList.forEach( (title, index) => {
chatResponse = chatResponse + (index + 1).toString() + title.title;
});
agent.add(chatResponse);
}
let intentMap = new Map();
intentMap.set("Catalog Search", catalog_search);
}
来自intent的JSON响应是:
{
"responseId": "958f0d66-13ba-4bf5-bed8-83480da4c37e",
"queryResult": {
"queryText": "Do you have any books about goats?",
"parameters": {
"item-subject": "goats",
"item-title": "",
"author-name": ""
},
"allRequiredParamsPresent": true,
"fulfillmentMessages": [
{
"text": {
"text": [
""
]
}
}
],
"intent": {
"name": "projects/library-chatbot/agent/intents/a5f8ad9b-ff73-49f7-a8c0-351da3bf4802",
"displayName": "Catalog Search"
},
"intentDetectionConfidence": 1,
"diagnosticInfo": {
"webhook_latency_ms": 3591
},
"languageCode": "en"
},
"webhookStatus": {
"message": "Webhook execution successful"
}
}
我已经通过一个单独的函数验证了Opensearch调用是否有效并生成了一个标题列表,但是当通过Dialogflow intent访问时,不会返回任何内容。我认为这可能是由于免费帐户的限制,但在添加计费信息和升级后,错误仍然存在
或者,更确切地说,是没有产生响应的错误。这里有我遗漏的东西吗?你的第三行:
const agent = new WebhookClient({ request: request, response: response });
正在尝试实例化新代理,但该范围中未定义请求和响应。尝试将该行移到您的libraryChat函数体中。问题:DialogFlow代理在处理Opensearch结果之前返回响应 解决方案:首先,路由聊天意图,而不使用内置的
.handleRequest
方法来调用Opensearch,返回承诺
function chooseHandler(agent) {
var intentRoute = "";
switch (agent.intent) {
case "Default Welcome Intent":
intentRoute = "welcome";
break;
case "Default Fallback Intent":
intentRoute = "fallback";
break;
case "Catalog Search":
intentRoute = "catalog";
break;
}
return new Promise ((resolve, reject) => {
if (intentRoute.length > 0) {
resolve(intentRoute);
}
else {
reject(Error("Route Not Found"));
}
});
}
function assignResponse(intentRoute, agent) {
switch (intentRoute) {
case "welcome":
agent.handleRequest(welcome);
break;
case "fallback":
agent.handleRequest(fallback);
break;
case "catalog":
catalog_response();
break;
default:
Error("Intent not found");
}
}
function catalog_search(agent) {
var itemSubject = agent.parameters["item-subject"] ? "+" + agent.parameters["item-subject"] : "";
var itemTitle = agent.parameters["item-title"] ? "+" + agent.parameters["item-title"] : "";
var itemType = agent.parameters["item-type"] ? "+" + agent.parameters["item-type"] : "";
var authorName = "";
if (agent.parameters["author-name"]) {
authorName = agent.parameters["author-name"]["name"] ? "+" + agent.parameters["author-name"]["name"] + " " + agent.parameters["author-name"]["last-name"] : "+" + agent.parameters["author-name"]["last-name"];
}
var searchString = "";
if (itemSubject.length > 0) { searchString += itemSubject; }
if (itemTitle.length > 0 ) { searchString += itemTitle; }
if (authorName.length > 0) { searchString += authorName; }
if (itemType.length > 0) { searchString += itemType; }
var url = "https://gapines.org/opac/extras/opensearch/1.1/-/rss2-full?searchTerms=site(GCHR-CCO)" + encodeURIComponent(searchString) + "&searchClass=keyword";
console.log(url);
console.log(encodeURIComponent(searchString));
var itemList = [];
var chatResponse = "this was untouched";
return new Promise((resolve, reject) => {
catalogSearch.load(url, (err, rss) => {
if (err) {
reject(Error("url failed!"));
}
else {
itemList = rss;
if (itemList.items.length > 0) {
if (itemList.items.length === 1) {
chatResponse = "The only item found for that search is ";
}
else if (itemList.items.length < 10) {
chatResponse = "The first few items in your search are ";
}
else {
chatResponse = "The first ten items in your search are ";
}
itemList.items.forEach( (item, index) => {
chatResponse = chatResponse + item.title.replace(/\//g, "").trim();
if (index + 1 < itemList.items.length) {
chatResponse += ", ";
} else {
chatResponse += ".";
}
});
}
else {
chatResponse = "We're sorry, there are no items matching that search at our library!";
}
console.log(rss);
resolve(chatResponse);
}
});
});
}
接下来,从OpenSearchAPI检索数据,并返回承诺
function chooseHandler(agent) {
var intentRoute = "";
switch (agent.intent) {
case "Default Welcome Intent":
intentRoute = "welcome";
break;
case "Default Fallback Intent":
intentRoute = "fallback";
break;
case "Catalog Search":
intentRoute = "catalog";
break;
}
return new Promise ((resolve, reject) => {
if (intentRoute.length > 0) {
resolve(intentRoute);
}
else {
reject(Error("Route Not Found"));
}
});
}
function assignResponse(intentRoute, agent) {
switch (intentRoute) {
case "welcome":
agent.handleRequest(welcome);
break;
case "fallback":
agent.handleRequest(fallback);
break;
case "catalog":
catalog_response();
break;
default:
Error("Intent not found");
}
}
function catalog_search(agent) {
var itemSubject = agent.parameters["item-subject"] ? "+" + agent.parameters["item-subject"] : "";
var itemTitle = agent.parameters["item-title"] ? "+" + agent.parameters["item-title"] : "";
var itemType = agent.parameters["item-type"] ? "+" + agent.parameters["item-type"] : "";
var authorName = "";
if (agent.parameters["author-name"]) {
authorName = agent.parameters["author-name"]["name"] ? "+" + agent.parameters["author-name"]["name"] + " " + agent.parameters["author-name"]["last-name"] : "+" + agent.parameters["author-name"]["last-name"];
}
var searchString = "";
if (itemSubject.length > 0) { searchString += itemSubject; }
if (itemTitle.length > 0 ) { searchString += itemTitle; }
if (authorName.length > 0) { searchString += authorName; }
if (itemType.length > 0) { searchString += itemType; }
var url = "https://gapines.org/opac/extras/opensearch/1.1/-/rss2-full?searchTerms=site(GCHR-CCO)" + encodeURIComponent(searchString) + "&searchClass=keyword";
console.log(url);
console.log(encodeURIComponent(searchString));
var itemList = [];
var chatResponse = "this was untouched";
return new Promise((resolve, reject) => {
catalogSearch.load(url, (err, rss) => {
if (err) {
reject(Error("url failed!"));
}
else {
itemList = rss;
if (itemList.items.length > 0) {
if (itemList.items.length === 1) {
chatResponse = "The only item found for that search is ";
}
else if (itemList.items.length < 10) {
chatResponse = "The first few items in your search are ";
}
else {
chatResponse = "The first ten items in your search are ";
}
itemList.items.forEach( (item, index) => {
chatResponse = chatResponse + item.title.replace(/\//g, "").trim();
if (index + 1 < itemList.items.length) {
chatResponse += ", ";
} else {
chatResponse += ".";
}
});
}
else {
chatResponse = "We're sorry, there are no items matching that search at our library!";
}
console.log(rss);
resolve(chatResponse);
}
});
});
}
这一改变有助于从代理获取消息,但我仍然没有看到任何错误,Opensearch调用也没有填充任何数据。