如何在Express中使用dialogflow-fulfillment nodejs

Question

我想在Express中使用dialogflow实现库

这是我的代码：

import * as express from 'express';
import * as bodyParser from 'body-parser';
import * as dialogflowController from './controllers/dialogflow';

const app: express.Application = express();
app.use(bodyParser.json());
app.post('/echo', dialogflowController.doActions);
const http = require('http');
const httpServer = http.createServer(app);
httpServer.listen(80, function () { // ascolta sulla porta 80 per comando: ngrok http 80
  console.log('HTTP Started!');
});



// dialogflowController controller unit

import { Request, Response, NextFunction } from 'express';
const { WebhookClient, Card, Suggestion } = require('dialogflow-fulfillment');


export let doActions = (req: Request, res: Response, next: NextFunction) => {
  console.log('here it works');
  const agent = new WebhookClient({ req, res });
  console.log('crashes to the previous line');
};

这就是错误

Error: Request can NOT be empty.
[Node]     at new WebhookClient (D:\Progetti\node_modules\dialogflow-fulfillment\src\dialogflow-fulfillment.js:58:13)
[Node]     at exports.doActions (D:\Progetti\dist\controllers\dialogflow.js:14:19)
[Node]     at Layer.handle [as handle_request] (D:\Progetti\node_modules\express\lib\router\layer.js:95:5)

你能帮帮我吗?如何在Express中使用dialogflow-fulfillment nodejs库？

Answer 1

WebhookClient构造函数接受一个带有字段request和response的option对象。你给它们取名为req和res。

给定doActions()所需的参数，构造函数行应如下所示

const agent = new WebhookClient({
  request: req,
  response: res
});