Slack 下一代平台 - “reaction_icode9”事件​​引发

文章Slack 下一代平台 - “reaction_icode9”事件触发器，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！

当你开始一个新项目时，你可以运行slack create命令。在本教程中，您将从头开始构建一个应用程序。所以从列表中选择“空白项目”：

$ slack create? Select a template to build from:  Hello World  A simple workflow that sends a greeting  Scaffolded project  A solid foundational project that uses a Slack datastore> Blank project  A, well.. blank project  To see all available samples, visit github.com/slack-samples.

生成项目后，让我们检查slack run命令是否正常运行。此命令将新应用程序的“开发”版本安装到连接的 Slack 工作区中。现在您的应用程序的机器人用户位于工作区中，并且您的应用程序具有用于 API 调用的机器人令牌。

$ cd distracted-bison-253$ slack run? Choose a workspace  seratch  T03E94MJU   App is not installed to this workspaceUpdating dev app install for workspace "Acme Corp"⚠️  Outgoing domains   No allowed outgoing domains are configured   If your function makes network requests, you will need to allow the outgoing domains   Learn more about upcoming changes to outgoing domains: ://api.slack.com/future/changelog✨  seratch of Acme CorpConnected, awaiting events

如果您看到Connected, awaiting events日志消息，则应用已成功连接到 Slack。您可以按“Ctrl + C”来终止本地应用程序进程。

让我们从定义一个简单的演示工作流及其链接触发器开始。一如既往，将源代码保存为workflow_and_trigger.ts：

// ----------------// Workflow Definition// ----------------import { DefineWorkflow, Schema } from "deno-slack-sdk/mod.ts";export const workflow = DefineWorkflow({  callback_id: "example-workflow",  title: "Example Workflow",  input_parameters: {    properties: {      // All the possible inputs from the "reaction_added" event trigger      channel_id: { type: Schema.slack.types.channel_id },      user_id: { type: Schema.slack.types.user_id },      message_ts: { type: Schema.types.string },      reaction: { type: Schema.types.string },    },    required: ["channel_id", "user_id", "message_ts", "reaction"],  },});// TODO: Add function steps here// ----------------// Trigger Definition// ----------------import { Trigger } from "deno-slack-api/types.ts";const trigger: Trigger = {  type: "event", // Event Trigger  name: "Trigger the example workflow",  workflow: `#/workflows/${workflow.definition.callback_id}`,  event: {    // "reaction_added" event trigger    event_type: "slack#/events/reaction_added",    channel_ids: ["C04FB5UF1C2"], // TODO: Update this list    // The condition to filter events    filter: {      version: 1,      // Start the workflow only when the reaction is :eyes:      root: { statement: "{{data.reaction}} == eyes" },    },  },  inputs: {    channel_id: { value: "{{data.channel_id}}" },    user_id: { value: "{{data.user_id}}" },    message_ts: { value: "{{data.message_ts}}" },    reaction: { value: "{{data.reaction}}" },  },};export default trigger;

请注意，触发器event.event_type必须是"slack#/events/reaction_added". 触发器有五个可能的输入值。要了解最新的输入列表，请参阅官方文档页面data上的属性详细信息。

此外，该channel_ids: ["C04DPBYUQUC"], // TODO: Update this list部分需要更新。请注意，您必须选择一个公共（请注意，在撰写文章时，仅支持公共频道）频道来添加此工作流并在 Slack 客户端 UI 中复制其频道 ID。单击频道名称时，将打开一个弹出模式。向下滚动到底部后，您会在那里找到该频道：

然后，将工作流添加到manifest.ts：

import { Manifest } from "deno-slack-sdk/mod.ts";import { workflow as DemoWorkflow } from "./workflow_and_trigger.ts";export default Manifest({  name: "distracted-bison-253",  description: "Demo workflow",  icon: "assets/default_new_app_icon.png",  workflows: [DemoWorkflow],  outgoingDomains: [],  botScopes: [    "commands",    "chat:write",    "reactions:read", // required for the "reaction_added" event trigger    "channels:history", // will use in custom functions later    "channels:join", // will use in custom functions later  ],});

请注意，此事件触发器不仅需要添加工作流，还需要添加"reactions:read"范围。botScopes当您在应用程序中使用不同的偶数触发器时，请在此处检查触发器所需的范围。

接下来，您将使用两个终端窗口。一个用于slack run命令，另一个用于slack triggers create命令。

要注册工作流，slack run请在第一个终端窗口中运行命令。然后，运行slack triggers create --trigger-def workflow_and_trigger.ts另一个。您将看到以下输出：

$ slack triggers create --trigger-def ./example.ts? Choose an app  seratch (dev)  T03E*****   distracted-bison-253 (dev) A04FNE*****⚡ Trigger created   Trigger ID:   Ft04EJ8*****   Trigger Type: event   Trigger Name: Trigger the example workflow