← Hacker News + Discord Webhook integrations

Send Message (Advanced) with Discord Webhook API on New Comments by Keyword from Hacker News API

Pipedream makes it easy to connect APIs for Discord Webhook, Hacker News and 900+ other apps remarkably fast.

Trigger workflow on
New Comments by Keyword from the Hacker News API
Next, do this
Send Message (Advanced) with the Discord Webhook API
No credit card required
Into to Pipedream
Watch us build a workflow
Watch us build a workflow
7 min
Watch now ➜
Trusted by 250,000+ developers from startups to Fortune 500 companies:
Trusted by 250,000+ developers from startups to Fortune 500 companies

Developers Pipedream

Getting Started

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

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

Details

This integration uses pre-built, open source 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

Description:Emit new comments that mention a specific keyword
Version:0.0.3
Key:hacker_news-new-comments-by-keyword

Trigger Code

const Parser = require("rss-parser")
const parser = new Parser()

const hacker_news = require('../../hacker_news.app.js')

module.exports = {
  key: "hacker_news-new-comments-by-keyword",
  name: "New Comments by Keyword",
  description: "Emit new comments that mention a specific keyword",
  app: "hacker_news",
  version: "0.0.3",
  props: {
    hacker_news,
    timer: {
      type: "$.interface.timer",
      default: {
        intervalSeconds: 15,
      },
    },
    db: "$.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 comments. Leave blank to get all comments.",
      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/newcomments?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.
LabelPropTypeDescription
Hacker Newshacker_newsappThis component uses the Hacker News app.
timer$.interface.timer
N/Adb$.service.dbThis component uses $.service.db to maintain state between component invocations.
Keywordkeywordstring

Keyword to watch. Matches comments. Leave blank to get all comments.

Trigger Authentication

The Hacker News API does not require authentication.

About Hacker News

Social news website

Action

Description:Send a simple or structured message (using embeds) to a Discord channel
Version:0.3.1
Key:discord_webhook-send-message-advanced

Discord Webhook Overview

With Discord's Webhook API, you can create applications that send messages to
Discord channels automatically. For example, you could create a bot that sends
a message to a channel every time a new blog post is published, or a message to
a channel when someone joins your Discord server.

Here are some ideas for what you could build using the Discord Webhook API:

  • A bot that sends a message to a channel when a new blog post is published
  • A bot that sends a message to a channel when someone joins your Discord
    server
  • A bot that sends a message to a channel when a new product is added to your
    online store

Action Code

import common from "../send-message-common.mjs";

export default {
  ...common,
  key: "discord_webhook-send-message-advanced",
  name: "Send Message (Advanced)",
  description: "Send a simple or structured message (using embeds) to a Discord channel",
  version: "0.3.1",
  type: "action",
  props: {
    ...common.props,
    message: {
      propDefinition: [
        common.props.discordWebhook,
        "message",
      ],
      optional: true,
    },
    embeds: {
      propDefinition: [
        common.props.discordWebhook,
        "embeds",
      ],
    },
  },
  async run({ $ }) {
    const {
      message,
      avatarURL,
      threadID,
      username,
      includeSentViaPipedream,
      embeds,
    } = this;

    if (!message && !embeds) {
      throw new Error("This action requires at least 1 message OR embeds object. Please enter one or the other above.");
    }

    try {
      // No interesting data is returned from Discord
      await this.discordWebhook.sendMessage({
        avatarURL,
        threadID,
        username,
        embeds,
        content: includeSentViaPipedream
          ? this.appendPipedreamText(message ?? "")
          : message,
      });
      $.export("$summary", "Message sent successfully");
    } catch (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.

LabelPropTypeDescription
Discord WebhookdiscordWebhookappThis component uses the Discord Webhook app.
Messagemessagestring

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 IDthreadIDstring

If provided, the message will be posted to this thread

Usernameusernamestring

Overrides the current username of the webhook

Avatar URLavatarURLstring

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 workflowincludeSentViaPipedreamboolean

Defaults to true, includes a link to this workflow at the end of your Discord message.

Embedsembedsany

Optionally pass an array of embed objects. E.g., {{ [{"description":"Use markdown including *Italic* **bold** __underline__ ~~strikeout~~ [hyperlink](https://google.com) `code`"}] }}. To pass data from another step, enter a reference using double curly brackets (e.g., {{steps.mydata.$return_value}}).
Tip: Construct the embeds array in a Node.js code step, return it, and then pass the return value to this step.

Action Authentication

Discord Webhook uses OAuth authentication. When you connect your Discord Webhook account, Pipedream will open a popup window where you can sign into Discord Webhook 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 Webhook API.

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

webhook.incomingemailidentify

About Discord Webhook

Use this app to send messages to a channel using Discord's incoming webhooks

More Ways to Connect Discord Webhook + Hacker News

Send Message with Discord Webhook API on New Comments by Keyword from Hacker News API
Hacker News + Discord Webhook
 
Try it
Send Message with Discord Webhook API on New Stories by Keyword from Hacker News API
Hacker News + Discord Webhook
 
Try it
Send Message (Advanced) with Discord Webhook API on New Stories by Keyword from Hacker News API
Hacker News + Discord Webhook
 
Try it
Send Message With File with Discord Webhook API on New Stories by Keyword from Hacker News API
Hacker News + Discord Webhook
 
Try it
Send Message With File with Discord Webhook API on New Comments by Keyword from Hacker News API
Hacker News + Discord Webhook
 
Try it
New Stories by Keyword from the Hacker News API

Emit new stories that mention a specific keyword

 
Try it
New Comments by Keyword from the Hacker News API

Emit new comments that mention a specific keyword

 
Try it
Send Message with the Discord Webhook API

Send a simple message to a Discord channel

 
Try it
Send Message (Advanced) with the Discord Webhook API

Send a simple or structured message (using embeds) to a Discord channel

 
Try it
Send Message With File with the Discord Webhook API

Post a message with an attached file

 
Try it