从表单流中获取数据并将其输入到 api 调用中答案

【问题标题】：Getting data from Form Flow and inputting it into an api call从表单流中获取数据并将其输入到 api 调用中
【发布时间】：2018-05-03 19:46:11
【问题描述】：

我一直无法从使用表单流创建的表单中获取变量值。我想要用户提供这四个过滤器，以便我可以将它们插入到我的 API 调用中并返回一个 JSON 对象。

在此代码中，过滤器是在 URL 中手动指定的，仅用于说明目的。

当我运行此代码时，API 调用首先执行，然后表单出现在 Bot-framework Emulator 上。

[LuisIntent("ProductSearch")]
public async Task ProductSearch(IDialogContext context, LuisResult result)
{
    if (result.TryFindEntity("SearchKeyword", out EntityRecommendation SearchKeywordEntity))
    {
        await context.PostAsync($"Searching for '{SearchKeywordEntity.Entity}'...");

        Enquiry enqform = new Enquiry();
        FormDialog<Enquiry> Enquiryform = new FormDialog<Enquiry>(enqform, Enquiry.BuildEnquiryForm, FormOptions.PromptInStart);
        context.Call(Enquiryform, EnquiryFormSubmitted);

        ApiCall api = new ApiCall();
        string json = ApiCall.GET($"http://127.0.0.1:5000/search?search_keyword=water&av_filter=Asia&in_filter=Chemicals&aa_filter=Home Care&pg_filter=Polymers");
        await context.PostAsync(json);
    }
}

这里是 Enquiry.cs

using Microsoft.Bot.Builder.FormFlow;
using System;

namespace BASF_Bot_Application2.Dialogs
{
    [Serializable]
    public class Enquiry
    {
        [Prompt("Would you like to apply some filters to get more specific results? {||}")]
        public bool ApplyFilters { get; set; }

        [Prompt("Where do yo want the product? {||}")]
        public Availability AvailabilityRequired { get; set; }
        public enum Availability
        {
            Global, Africa, Asia, Australia, Europe, North_America, South_America
        }

        [Prompt("What industry would you prefer? {||}")]
        public Industries IndustriesRequired { get; set; }
        public enum Industries
        {
            Agriculture, Automotive & Transportation, Chemicals, Construction, Electronics & Electrics, Energy & Resources, Furniture & Wood, Home Care and I&I Cleaning, Nutrition, Packaging & Print, Paint & Coatings Industry, Personal Care & Hygiene, Plastics & Rubber, Pulp & Paper, Textile, Leather & Footwear
        }

        [Prompt("Where is the Area of Application? {||}")]
        public Areas_of_Application Areas_of_ApplicationRequired { get; set; }
        public enum Areas_of_Application
        {
            Ag Chem Additives, Cleaning and caring, Construction, Electronics, Food and Beverage, Formulation Technologies, Health, Home and Garden, Home Care, Industrial and Institutional Cleaning, Information technology, Manufacturing, Measuring and control technol., Packaging, Paper and Printing
        }

        public static IForm<Enquiry> BuildEnquiryForm()
        {
            return new FormBuilder<Enquiry>()
                .Field("ApplyFilters")
                .Field("AvailabilityRequired")
                .Field("Industries")
                .Field("Areas_of_Application")
                .Build();
        }
    }
}

【问题讨论】：

标签： c# botframework azure-language-understanding formflow

【解决方案1】：

一旦用户完成/填写表单，EnquiryFormSubmitted 就会被触发，因此您将在此处获取用户输入的值，并且您应该在此处进行 API 调用。

private async Task EnquiryFormSubmitted(IDialogContext context, IAwaitable<Enquiry> result)
    {            
        var enquiry = await result;
        //All the user entered details are available in the enquiry object.
        ApiCall api = new ApiCall();
        string parameters = $"search_keyword=water&av_filter={enquiry.Availability}&in_filter={enquiry.Industries}&aa_filter={enquiry.Areas_of_Application}&pg_filter=Polymers";
        string json = ApiCall.GET($"http://127.0.0.1:5000/search?" + parameters);
        await context.PostAsync(json);
        //Whatever more logic is required
    }

【讨论】：