目标
一个 Slack Event-Subscription 事件正在访问我的 Firebase 端点,然后,一个 Firebase 云函数正在使用该dialog_open
端点在 Slack 中打开一个对话框,其中包含一些来自 Firebase 的值。
问题
当 Firebase Cloud 功能命中 Slack 的 dialog_open
端点时,我在控制台日志中收到错误消息。
我正进入(状态body: { ok: false, error: 'trigger_expired' }
但是,Firebase 中的日志显示往返时间少于 500 毫秒。但是,我没有看到将在第一个请求中记录到 trigger_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
当我在新部署后第二次、第三次或第四次触发 Slack 事件时,我得到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(9ms),但触发错误不同,这次我确实看到了json.trigger_id
来自 Slack Event-Subscription 事件。
最后一件事,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
我一定是在做蠢事。有人猜我有什么问题trigger_id
吗?
代码
这是 Firebase 云功能:
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));
});