New Forum Thread Message from Discord Bot API

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New Forum Thread Message from the Discord Bot API

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Getting Started#

Trigger a workflow on New Forum Thread Message with Discord Bot API. When you configure and deploy the workflow, it will run on Pipedream's servers 24x7 for free.

Configure the New Forum Thread Message trigger
1. Connect your Discord Bot account
2. Select a Guild
3. Configure timer
4. Select a Forum Id
Add steps to connect to 2,500+ APIs using code and no-code building blocks
Deploy the workflow
Send a test event to validate your setup
Turn on the trigger

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Details#

This is a pre-built, source-available component from Pipedream's GitHub repo. The component is developed by Pipedream and the community, and verified and maintained by Pipedream.

To contribute an update to an existing component or create a new component, create a PR on GitHub. If you're new to Pipedream component development, you can start with quickstarts for trigger span and action development, and then review the component API reference.

New Forum Thread Message on Discord Bot

Description:Emit new event for each forum thread message posted. Note that your bot must have the `MESSAGE_CONTENT` privilege intent to see the message content. [See the documentation](https://discord.com/developers/docs/topics/gateway#message-content-intent).

Version:0.0.4

Key:discord_bot-new-forum-thread-message

View on GitHub

Code#

import { DEFAULT_POLLING_SOURCE_TIMER_INTERVAL } from "@pipedream/platform";
import maxBy from "lodash.maxby";
import constants from "../../common/constants.mjs";
import common from "../common.mjs";
import sampleEmit from "./test-event.mjs";

export default {
  ...common,
  key: "discord_bot-new-forum-thread-message",
  name: "New Forum Thread Message",
  description: "Emit new event for each forum thread message posted. Note that your bot must have the `MESSAGE_CONTENT` privilege intent to see the message content. [See the documentation](https://discord.com/developers/docs/topics/gateway#message-content-intent).",
  type: "source",
  version: "0.0.4",
  dedupe: "unique", // Dedupe events based on the Discord message ID
  props: {
    ...common.props,
    db: "$.service.db",
    timer: {
      type: "$.interface.timer",
      default: {
        intervalSeconds: DEFAULT_POLLING_SOURCE_TIMER_INTERVAL,
      },
    },
    forumId: {
      propDefinition: [
        common.props.discord,
        "channelId",
        ({ guildId }) => ({
          guildId,
          allowedChannels: [
            constants.CHANNEL_TYPES.GUILD_FORUM,
          ],
        }),
      ],
      label: "Forum Id",
      description: "Select the forum you want to watch.",
    },
  },
  methods: {
    ...common.methods,
    getChannel(id) {
      return this.discord._makeRequest({
        path: `/channels/${id}`,
      });
    },
  },
  async run({ $ }) {
    // We store a cursor to the last message ID
    let lastMessageIDs = this._getLastMessageIDs();

    const { threads } = await this.discord.listThreads({
      $,
      guildId: this.guildId,
    });

    const forumThreads = threads.reduce((acc, curr) => {
      return curr.parent_id === this.forumId ?
        [
          ...acc,
          curr,
        ]
        : acc;
    }, []);

    // If this is our first time running this source,
    // get the last N messages, emit them, and checkpoint
    for (const channel of forumThreads) {
      let lastMessageID;
      let messages = [];
      const channelId = channel.id;

      if (!lastMessageIDs[channelId]) {
        messages = await this.discord.getMessages({
          $,
          channelId,
          params: {
            limit: 25,
          },
        });

        lastMessageID = messages.length
          ? maxBy(messages, (message) => message.id).id
          : 1;

      } else {
        let newMessages = [];

        do {
          newMessages = await this.discord.getMessages({
            $,
            channelId,
            params: {
              after: lastMessageIDs[channelId],
            },
          });

          messages = messages.concat(newMessages);

          lastMessageID = newMessages.length
            ? maxBy(newMessages, (message) => message.id).id
            : lastMessageIDs[channelId];
          lastMessageIDs[channelId] = lastMessageID;

        } while (newMessages.length);
      }

      // Set the new high water mark for the last message ID
      // for this channel
      lastMessageIDs[channelId] = lastMessageID;

      if (!messages.length) {
        console.log(`No new messages in thread ${channelId}`);
        continue;
      }

      console.log(`${messages.length} new messages in thread ${channelId}`);

      messages = await Promise.all(messages.map(async (message) => ({
        ...message,
        thread: await this.getChannel(message.channel_id),
      })));

      const { available_tags: availableTags = [] } = await this.getChannel(this.forumId);
      for (const message of messages) {
        if (!message.thread.applied_tags) {
          message.thread.applied_tags = [];
        }
        message.thread.applied_tags = message.thread.applied_tags.map((tagId) => ({
          ...availableTags.find(({ id }) => id === tagId),
        }));
      }

      messages.reverse().forEach((message) => {
        this.$emit(message, {
          id: message.id, // dedupes events based on this ID
          summary: `A new message with Id: ${message.id} was posted in forum thread ${channelId}.`,
          ts: Date.parse(message.timestamp),
        });
      });
    }

    // Set the last message ID for the next run
    this._setLastMessageIDs(lastMessageIDs);
  },
  sampleEmit,
};

Configuration#

This component may be configured based on the props defined in the component code. Pipedream automatically prompts for input values in the UI and CLI.

Label	Prop	Type	Description
Discord Bot	`discord`	`app`	This component uses the Discord Bot app.
Guild	`guildId`	`string`	Select a value from the drop down menu.
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.
	`timer`	`$.interface.timer`
Forum Id	`forumId`	`string`	Select a value from the drop down menu.

Authentication#

Discord Bot uses API keys for authentication. When you connect your Discord Bot account, Pipedream securely stores the keys so you can easily authenticate to Discord Bot APIs in both code and no-code steps.

This app allows you to use the Discord API using your own Discord bot. If you don't want to use a custom bot, and you just need to use the Discord API, exit this screen and use the Discord app, instead.

If you want to use your own Discord bot, but haven't created one yet, see these instructions or watch this video. You'll need to add this bot to your server(s) to make successful API requests.

Once you've created your bot, you'll find the Bot token within the Bot section of your app. Enter that token below.