对话流实现webhook调用失败
我对dialogflow fulfillment是个新手，我正在尝试根据用户问题从新闻API检索新闻。我遵循了新闻API提供的文档，但我无法从搜索结果中捕获任何响应，当我在控制台中运行该函数时，它不是错误。我更改了代码，现在看起来它正在到达newsapi端点，但它没有获取任何结果。我正在利用https://newsapi.org/docs/client-libraries/node-js请求搜索关于该主题的所有内容。当我诊断函数时，它显示“Webhook调用失败。错误:不可用。”
'use strict';
const functions = require('firebase-functions');
const {WebhookClient} = require('dialogflow-fulfillment');
const {Card, Suggestion} = require('dialogflow-fulfillment');
const http = require('http');
const host = 'newsapi.org';
const NewsAPI = require('newsapi');
const newsapi = new NewsAPI('63756dc5caca424fb3d0343406295021');
process.env.DEBUG = 'dialogflow:debug';
exports.dialogflowFirebaseFulfillment = functions.https.onRequest((req, res) =>
{
// Get the city
let search = req.body.queryResult.parameters['search'];// search is a required param
// Call the weather API
callNewsApi(search).then((response) => {
res.json({ 'fulfillmentText': response }); // Return the results of the news API to Dialogflow
}).catch((xx) => {
console.error(xx);
res.json({ 'fulfillmentText': `I don't know the news but I hope it's good!` });
});
});
function callNewsApi(search)
{
console.log(search);
newsapi.v2.everything
(
{
q: 'search',
langauge: 'en',
sortBy: 'relevancy',
source: 'cbc-news',
domains: 'cbc.ca',
from: '2019-12-31',
to: '2020-12-12',
page: 2
}
).then (response => {console.log(response);
{
let articles = response['data']['articles'][0];
// Create response
let responce = `Current news in the $search with following title is ${articles['titile']} which says that
${articles['description']}`;
// Resolve the promise with the output text
console.log(output);
}
});
}这里还有原始的API响应
{
"responseId": "a871b8d2-16f2-4873-a5d1-b907a07adb9a-b4ef8d5f",
"queryResult": {
"queryText": "what is the latest news about toronto",
"parameters": {
"search": [
"toronto"
]
},
"allRequiredParamsPresent": true,
"fulfillmentMessages": [
{
"text": {
"text": [
""
]
}
}
],
"intent": {
"name": "projects/misty-ktsarh/agent/intents/b52c5774-e5b7-494a-8f4c-f783ebae558b",
"displayName": "misty.news"
},
"intentDetectionConfidence": 1,
"diagnosticInfo": {
"webhook_latency_ms": 543
},
"languageCode": "en"
},
"webhookStatus": {
"code": 14,
"message": "Webhook call failed. Error: UNAVAILABLE."
},
"outputAudio": "UklGRlQqAABXQVZFZm10IBAAAAABAAEAwF0AAIC7AAACABAAZGF0YTAqAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA... (The content is truncated. Click `COPY` for the original JSON.)",
"outputAudioConfig": {
"audioEncoding": "OUTPUT_AUDIO_ENCODING_LINEAR_16",
"synthesizeSpeechConfig": {
"speakingRate": 1,
"voice": {}
}
}
} 下面是履行请求：
{
"responseId": "a871b8d2-16f2-4873-a5d1-b907a07adb9a-b4ef8d5f",
"queryResult": {
"queryText": "what is the latest news about toronto",
"parameters": {
"search": [
"toronto"
]
},
"allRequiredParamsPresent": true,
"fulfillmentMessages": [
{
"text": {
"text": [
""
]
}
}
],
"intent": {
"name": "projects/misty-ktsarh/agent/intents/b52c5774-e5b7-494a-8f4c-f783ebae558b",
"displayName": "misty.news"
},
"intentDetectionConfidence": 1,
"diagnosticInfo": {
"webhook_latency_ms": 543
},
"languageCode": "en"
},
"webhookStatus": {
"code": 14,
"message": "Webhook call failed. Error: UNAVAILABLE."
},
"outputAudio": "UklGRlQqAABXQVZFZm10IBAAAAABAAEAwF0AAIC7AAACABAAZGF0YTAqAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA... (The content is truncated. Click `COPY` for the original JSON.)",
"outputAudioConfig": {
"audioEncoding": "OUTPUT_AUDIO_ENCODING_LINEAR_16",
"synthesizeSpeechConfig": {
"speakingRate": 1,
"voice": {}
}
}
}这里还有来自firebase控制台的屏幕截图。
有没有人能给我指点一下，我这里遗漏了什么？
回答 2
Stack Overflow用户
发布于 2020-01-05 04:50:28
关键是错误消息中的前三行：
Function failed on loading user code. Error message: Code in file index.js can't be loaded.
Did you list all required modules in the package.json dependencies?
Detailed stack trace: Error: Cannot find module 'newsapi'这说明无法加载newsapi模块，最有可能的原因是您没有在package.json文件中将其作为依赖项列出。
如果您使用的是Dialogflow内联编辑器，则需要选择package.json选项卡并在dependencies部分中添加一行。
更新
目前还不清楚你何时何地收到了“不可用”的错误，但如果你使用Dialogflow的内联编辑器，一个可能的原因是它使用的是Firebase "Spark“定价方案，该方案对Google网络以外的网络呼叫有限制。
你可以使用upgrade to the Blaze plan，这确实需要一张信用卡在文件上，但确实包括了Spark计划的免费级别，所以你不应该在少量使用期间产生任何费用。这将允许网络调用。
基于TypeError: Cannot read property '0' of undefined的更新
这表示某个属性(或某个属性的索引)正在尝试引用未定义的内容。
还不清楚这到底是哪一行，但这些行都是可疑的：
let response = JSON.parse(body);
let source = response['data']['source'][0];
let id = response['data']['id'][0];
let name = response['data']['name'][0];
let author = response['author'][0];
let title = response['title'][0];
let description = response['description'][0];因为它们都引用一个属性。我会检查返回的内容并将其存储在response中。例如，会不会在发回的内容中没有"data“或"author”字段？
查看https://newsapi.org/docs/endpoints/everything，这些看起来都不是字段，但有一个返回的articles属性，其中包含一组文章。您可能希望将其编入索引，并获得所需的属性。
更新
它看起来就像这样，尽管您使用下面这一行将参数加载到变量中
// Get the city and date from the request
let search = req.body.queryResult.parameters['search'];// city is a required param实际上，您并没有在任何地方使用search变量。相反，您似乎使用下面这一行将文字字符串"search“传递给了您的函数
callNewsApi('search').then((output) => {我猜它会搜索“搜索”这个词。
您指出"it to to the catch call“，这表明调用过程中出现了错误。您没有在catch部分中显示任何日志记录，记录抛出的异常可能很有用，这样您就可以知道为什么它会转到catch部分。就像这样
}).catch((xx) => {
console.error(xx);
res.json({ 'fulfillmentText': `I don't know the news but I hope it's good!` });
});是正常的，但由于看起来您正在将其记录在.on('error')部分中，因此显示该错误可能是有用的。
Stack Overflow用户
发布于 2020-04-10 06:42:58
意图的名称和我用来进行调用的变量在大小写方面有所不同，我想调用是区分大小写的，请注意这一点
https://stackoverflow.com/questions/59582045
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