Dialogflow 通过 NodeJS 传递参数

Question

如何通过 NodeJS 请求传递参数？例如，我想传递我的代码和对话框流中的名称，并自动回复包含我传递的参数的响应，如“Hi $name”。

我的实际请求：

const request = {
  session: sessionPath,
  queryInput: {
    text: {
      text: query,
      languageCode: languageCode,
    },
  },
};

EDIT 4 [index.js]，这是答案后新的正确代码

const projectId    = 'your-project-id';
const sessionId    = 'session-id';

const query        = 'your-query';
const languageCode = 'your-language';

const j = require("./structjson.js");   //download It from the answer 


const dialogflow    = require('dialogflow');
const sessionClient = new dialogflow.SessionsClient({keyFilename: './THIS-IS-RIGHT.json'});

// Define session path
const sessionPath = sessionClient.sessionPath(projectId, sessionId);


async function request() {
    const contextClient = new dialogflow.ContextsClient({ keyFilename: './your-path-to-file.json' });

    const contextData = {
        name: contextClient.contextPath(projectId, sessionId, 'your-context'),
        parameters: j.jsonToStructProto({ name: 'John' }),
        lifespanCount: 1
    };//An example for the name

    const context = await contextClient.createContext({
        parent: sessionPath,
        context: contextData
    });

    const request = {
        session: sessionPath,
        queryInput: {
            text: {
                text: query,
                languageCode
            }
        },
        queryParams: {
            contexts: context // You may want to add the other contexts here
        }
    };

    const result = await sessionClient.detectIntent(request);
    console.log(result);
}

request();

Answer 1

您可以在发送event 而不是text 时传递参数。

您需要将 javascript 对象转换为 proto 结构。有一个包pb-util 将处理编码/解码

const { struct } = require('pb-util');  

const request = {
    session: sessionPath,
    queryInput: {
        event: {
            name: eventName,
            parameters: struct.encode({ name: 'John' }),
            languageCode
        }
    }
};

之后，您需要根据您的意图使用以下语法创建一个参数。 #eventName.name

---

另一种方法是创建一个上下文，使用dialogflow.ContextsClient & client.createContext() 并将参数添加到上下文中，然后使用queryInput 请求发送该上下文。

async function request() {
    const contextClient = new dialogflow.ContextsClient({ keyFilename: '..' });
    const sessionClient = new dialogflow.SessionsClient({ keyFilename: '..' });

    const contextData = {
        name: contextClient.contextPath('[PROJECT]', '[SESSION]', '[YOUR-CONTEXT]'),
        parameters: struct.encode({ name: 'John' }),
        lifespanCount: 1
    };

    const context = await contextClient.createContext({ 
        parent: sessionPath, 
        context: contextData 
    });

    const request = {
        session: sessionPath,
        queryInput: {
            text: {
                text: query,
                languageCode
            }
        },
        queryParams: {
            contexts: context // You may want to add the other contexts here
        }
    };

    const result = await sessionClient.detectIntent(request);
    console.log(result);
}

现在您需要创建一个参数，其值为：#your-context.name