如果最终用户没有回复，如何在一定时间后关闭TextPrompt [英] How to close TextPrompt after a certain time if the enduser doesn't reply

问题描述

在Microsoft chatbot SDK v4中，我想知道如何以编程方式关闭任何类型的提示，TextPrompt，ConfirmPrompt ...等"提示，如果用户未回复，则在一段时间后结束对话框.

In Microsoft chatbot SDK v4 I want to know how to programmatically close the Prompt "any type of it TextPrompt, ConfirmPrompt ... etc" and end the dialog after period of time if the user didn't reply.

我已经尝试使用settimeout并使用sc.endDialog，但是它不起作用并给了我

I already tried to use settimeout and use sc.endDialog but it doesn't work and gave me

private promptForNameStep = async (step: WaterfallStepContext<UserProfile>) => {

setTimeout(async () => {
   console.log('I am here!');
   await step.endDialog();
}, 5000);

        const userProfile = await this.userProfileAccessor.get(step.context);

        if (userProfile.name === undefined) {
            // prompt for name, if missing
            return await step.prompt(NAME_PROMPT, i18n.__('salutation.your_name'));
        }
        return await step.next();
    }

(node:21084) UnhandledPromiseRejectionWarning: TypeError: Cannot perform 'get' on a proxy that has been revoked
    at UserState.load (/Users/macbook/Workspace/bot/chatbot/templates/Enterprise-Template/src/typescript/enterprise-bot/node_modules/botbuilder-core/src/botState.ts:84:48)
    at BotStatePropertyAccessor.get (/Users/macbook/Workspace/bot/chatbot/templates/Enterprise-Template/src/typescript/enterprise-bot/node_modules/botbuilder-core/src/botStatePropertyAccessor.ts:97:43)
    at SkillDialog.getStateFromAccessor (/Users/macbook/Workspace/bot/chatbot/templates/Enterprise-Template/src/typescript/enterprise-bot/src/dialogs/skill/skillDialog.ts:164:68)
    at SkillDialog.executeStep (/Users/macbook/Workspace/bot/chatbot/templates/Enterprise-Template/src/typescript/enterprise-bot/src/dialogs/skill/skillDialog.ts:91:47)
    at Array.stepsMethods.push (/Users/macbook/Workspace/bot/chatbot/templates/Enterprise-Template/src/typescript/enterprise-bot/src/dialogs/skill/skillDialog.ts:149:29)
    at WaterfallDialog.onStep (/Users/macbook/Workspace/bot/chatbot/templates/Enterprise-Template/src/typescript/enterprise-bot/node_modules/botbuilder-dialogs/src/waterfallDialog.ts:198:44)
    at WaterfallDialog.runStep (/Users/macbook/Workspace/bot/chatbot/templates/Enterprise-Template/src/typescript/enterprise-bot/node_modules/botbuilder-dialogs/src/waterfallDialog.ts:225:31)
    at WaterfallDialog.resumeDialog (/Users/macbook/Workspace/bot/chatbot/templates/Enterprise-Template/src/typescript/enterprise-bot/node_modules/botbuilder-dialogs/src/waterfallDialog.ts:166:27)
    at WaterfallStepContext.endDialog (/Users/macbook/Workspace/bot/chatbot/templates/Enterprise-Template/src/typescript/enterprise-bot/node_modules/botbuilder-dialogs/src/dialogContext.ts:269:33)
    at <anonymous>
(node:21084) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 4)
(node:21084) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

我希望对话框关闭，但出现上述错误.

I expect that the dialog closed but I got the above error.

推荐答案

使用超时来结束对话不是一个好习惯，因为当您进行横向扩展时，消息可能会路由到机器人的不同实例，并且超时不会被正确取消.更好的方法是将用户上次向机器人发送消息给机器人的时间保存下来，并在用户下次响应之前向机器人发送消息给机器人，检查时间差.看看下面的代码片段.

Using a timeout to end the conversation is not a good practice because when you scale out messages may be routed to different instances of the bot and the timeout won't be canceled correctly. A better approach is to save the last time the user messaged the bot in userState and check the time difference the next time the user messages the bot before responding. Take a look at the code snippets below.

const TIMEOUT = 5000;

...

 // Prompts
  async promptForName(step) {
    this.profileAccessor.set(step.context, { lastMessage: new Date() });    
    return await step.prompt(NAME_PROMPT, "What is your name?");
  }

  async captureName(step) {
    const profile = await this.profileAccessor.get(step.context);
    if (new Date().getTime() - new Date(profile.lastMessage).getTime() < TIMEOUT) {
      profile.name = step.result;
      profile.lastMessage = new Date();
      this.profileAccessor.set(step.context, profile);

      await this.userState.saveChanges(step.context);

      return await step.next();
    } else {
      await step.context.sendActivity("Sorry, you took too long to respond");
      return await step.endDialog();
    }
  }

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