使用Slack的API对话框从FireBase Cloud函数打开

目标

可宽延事件订阅事件正在命中我的FireBase端点,然后,FireBase Cloud函数正在使用 dialog_open 终结点打开一个对话框,其中包含来自FireBase的一些值。

问题

当firebase cloud函数命中slack的 对话开放 端点,我在控制台日志中得到错误。

我得到 body: { ok: false, error: 'trigger_expired' }

然而,firebase中的日志显示往返时间不到500毫秒。但是,我没有看到将从第一个请求记录到触发器ID的触发器ID(请参见下面的代码)。

4:57:12.443 PM | info | helloWorld | body: { ok: false, error: 'trigger_expired' } 
4:57:04.163 PM | outlined_flag | helloWorld | Function execution took 254 ms, finished with status code: 200
4:57:03.910 PM | outlined_flag | helloWorld | Function execution started

当我在新部署之后第二次、第三次或第四次触发松弛事件时,我会 body: { ok: false, error: 'invalid_trigger' }

5:31:29.757 PM helloWorld body: { ok: false, error: 'invalid_trigger' }
5:31:28.744 PM helloWorld Function execution took 9 ms, finished with status code: 200
5:31:28.740 PM helloWorld json.trigger_id: "405615464868.7467239747.e706f2732257c541c445ad3938a29fd3"
5:31:28.735 PM helloWorld Function execution started

这也发生得足够快(9毫秒),但触发错误不同,这次我 做 见 json.trigger_id 来自可宽延事件订阅事件。

最后,我尝试了json.stringify:

trigger_id: JSON.stringify(json.trigger_id),

现在日志和错误是不同的:

5:33:24.512 PM | info | helloWorld | body: { ok: false, error: 'internal_error' }
5:33:23.565 PM | outlined_flag | helloWorld | Function execution took 13 ms, finished with status code: 200
5:33:23.559 PM | info | helloWorld | json.trigger_id: "406895248231.7467239747.7490e460213b3d65a44eef9f2e30c168"
5:33:23.553 PM | outlined_flag | helloWorld | Function execution started

问题

我一定在做蠢事。我的有什么问题吗 trigger_id ?

代码

FireBase Cloud功能如下:

import * as rp from "request-promise";
import * as functions from "firebase-functions";

export const helloWorld = functions.https.onRequest((request, response) => {
  return new Promise((_resolve, _reject) => {
    let json = JSON.parse(request.body.payload);
    console.log("json.trigger_id:", json.trigger_id);

    const options = {
      method: "POST",
      uri: "https://slack.com/api/dialog.open",
      body: {
        trigger_id: json.trigger_id,
        dialog: {
          callback_id: json.callback_id,
          title: "Request a Ride",
          submit_label: "Request",
          elements: [
            { type: "text", label: "Pickup Location", name: "loc_origin" },
            { type: "text", label: "Dropoff Location", name: "loc_destination" }
          ]
        }
      },
      json: true,
      headers: {
        "Content-type": "application/json; charset=utf-8",
        Authorization:
          "Bearer xoxp-secret"
      }
    };

    rp(options)
      .then(function(body) {
        console.log("body:", body);
      })
      .catch(function(err) {
        console.log("err:", err);
      });
    return response.status(200).json({ message: "Hello from Firebase" });
  }).catch(err => response.status(500).send(err));
});