Send Message with Discord API on New Stories by Keyword from Hacker News API

Pipedream makes it easy to connect APIs for Discord, Hacker News and 1,600+ other apps remarkably fast.

Trigger workflow on

New Stories by Keyword from the Hacker News API

Next, do this

Send Message with the Discord API

No credit card required

▶

Watch us build a workflow

7 min

Watch now ➜

Trusted by 750,000+ developers from startups to Fortune 500 companies

Developers ♥ Pipedream

Getting Started#

This integration creates a workflow with a Hacker News trigger and Discord action. When you configure and deploy the workflow, it will run on Pipedream's servers 24x7 for free.

Select this integration
Configure the New Stories by Keyword trigger
1. Connect your Hacker News account
2. Configure timer
3. Optional- Configure Keyword
Configure the Send Message action
1. Connect your Discord account
2. Configure channel
3. Configure Message
4. Optional- Configure Thread ID
5. Optional- Configure Username
6. Optional- Configure Avatar URL
7. Optional- Configure Include link to workflow
Deploy the workflow
Send a test event to validate your setup
Turn on the trigger

Details#

This integration uses pre-built, source-available components from Pipedream's GitHub repo. These components are 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.

Trigger#

New Stories by Keyword on Hacker News

Description:Emit new stories that mention a specific keyword

Version:0.0.4

Key:hacker_news-new-stories-by-keyword

View on GitHub

Trigger Code#

const Parser = require("rss-parser");
const hacker_news = require("../../hacker_news.app.js");
const { DEFAULT_POLLING_SOURCE_TIMER_INTERVAL } = require("@pipedream/platform");

const parser = new Parser();

module.exports = {
  key: "hacker_news-new-stories-by-keyword",
  name: "New Stories by Keyword",
  description: "Emit new stories that mention a specific keyword",
  version: "0.0.4",
  type: "source",
  props: {
    hacker_news,
    timer: {
      type: "$.interface.timer",
      default: {
        intervalSeconds: DEFAULT_POLLING_SOURCE_TIMER_INTERVAL,
      },
    },
    db: "$.service.db",
    // If you want a single search feed but multiple keywords, separate the keywords with " OR ":
    keyword: {
      type: "string",
      label: "Keyword",
      description: "Keyword to watch. Matches story titles. Leave blank to get all stories.",
      optional: true,
      default: "",
    },
  },
  methods: {
    // in theory if alternate setting title and description or aren't unique this won't work
    itemKey(item) {
      return item.guid || item.id || item.title || item.description;
    },
  },
  async run() {
    const seenKeys = this.db.get("seenKeys") || [];
    const seenKeysMap = seenKeys.reduce((acc, v) => {
      acc[v] = true;
      return acc;
    }, {});
    // All elements of an item are optional,
    // however at least one of title or description must be present.
    // should be listed from most recent to least recent
    const feed = await parser.parseURL(`https://hnrss.org/newest?q=${encodeURIComponent(this.keyword)}`);
    for (let idx = feed.items.length - 1; idx >= 0; idx--) {
      const item = feed.items[idx];
      const key = this.itemKey(item);
      // XXX throw if !key?
      if (seenKeysMap[key]) continue;
      seenKeys.unshift(key);
      seenKeysMap[key] = true; // just in case of dupes
      this.$emit(item, {
        id: this.itemKey(item),
        summary: item.title,
        ts: item.pubdate && +new Date(item.pubdate),
      });
    }
    if (seenKeys.length) {
      // XXX restrict by byte size instead of el size
      this.db.set("seenKeys", seenKeys.slice(0, 1000));
    }
  },
};

Trigger 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
Hacker News	`hacker_news`	`app`	This component uses the Hacker News app.
	`timer`	`$.interface.timer`
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.
Keyword	`keyword`	`string`	Keyword to watch. Matches story titles. Leave blank to get all stories.

Trigger Authentication#

The Hacker News API does not require authentication.

About Hacker News#

Social news website

Action#

Send Message on Discord

Description:Send a simple message to a Discord channel

Version:1.0.1

Key:discord-send-message

View on GitHub

Discord Overview#

The Pipedream Discord app enables you to build event-driven workflows that interact with the Discord API. When you authorize the Pipedream app's access to your guilds, you can use Pipedream workflows to perform common Discord actions, or write your own code against the Discord API.

Action Code#

import common from "../common/common.mjs";

export default {
  ...common,
  key: "discord-send-message",
  name: "Send Message",
  description: "Send a simple message to a Discord channel",
  version: "1.0.1",
  type: "action",
  async run({ $ }) {
    const {
      message,
      avatarURL,
      threadID,
      username,
      includeSentViaPipedream,
    } = this;

    try {
      const resp = await this.discord.sendMessage(this.channel, {
        avatar_url: avatarURL,
        username,
        content: includeSentViaPipedream
          ? this.appendPipedreamText(message)
          : message,
      }, {
        thread_id: threadID,
      });
      $.export("$summary", "Message sent successfully");
      return resp || {
        success: true,
      };
    } catch (err) {
      console.log(err);
      const unsentMessage = this.getUserInputProps();
      $.export("unsent", unsentMessage);
      throw err;
    }
  },
};

Action Configuration#

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

Label	Prop	Type	Description
Discord	`discord`	`app`	This component uses the Discord app.
channel	`channel`	`$.discord.channel`
Message	`message`	`string`	Enter a simple message up to 2000 characters. This is the most commonly used field. However, it's optional if you pass embed content.
Thread ID	`threadID`	`string`	If provided, the message will be posted to this thread
Username	`username`	`string`	Overrides the current username of the webhook
Avatar URL	`avatarURL`	`string`	If used, it overrides the default avatar of the webhook. Note: Consecutive posts by the same username within 10 minutes of each other will not display updated avatar.
Include link to workflow	`includeSentViaPipedream`	`boolean`	Defaults to `true`, includes a link to this workflow at the end of your Discord message.

Action Authentication#

Discord uses OAuth authentication. When you connect your Discord account, Pipedream will open a popup window where you can sign into Discord and grant Pipedream permission to connect to your account. Pipedream securely stores and automatically refreshes the OAuth tokens so you can easily authenticate any Discord API.

Pipedream requests the following authorization scopes when you connect your account:

botemailidentifyguilds