← Hacker News + Go integrations

Run Go Code with Go API on New Comments by Keyword from Hacker News API

Pipedream makes it easy to connect APIs for Go, Hacker News and 1000+ other apps remarkably fast.

Trigger workflow on
New Comments by Keyword from the Hacker News API
Next, do this
Run Go Code with the Go 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 Go 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 Run Go Code action
    1. Connect your Go account
  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:0.0.4
Key:hacker_news-new-comments-by-keyword

Trigger Code

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

const parser = new Parser();

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: "0.0.4",
  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 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:Run any Go code and use any Go package available with a simple import. Refer to the [Pipedream Go docs](https://pipedream.com/docs/code/go) to learn more.
Version:0.0.2
Key:go-run-go-code

Action Code

import go from "../../go.app.mjs";

export default {
  name: "Run Go Code",
  version: "0.0.2",
  key: "go-run-go-code",
  description: "Run any Go code and use any Go package available with a simple import. Refer to the [Pipedream Go docs](https://pipedream.com/docs/code/go) to learn more.",
  props: {
    go,
  },
  type: "action",
  methods: {},
  async run({ $ }) {
    // Placeholder action for Go code app
  },
};

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
GogoappThis component uses the Go app.

Action Authentication

The Go API does not require authentication.

About Go

Anything you can do in Go, you can do in a Pipedream Workflow. You can use any of Go packages available with a simple import.

More Ways to Connect Go + Hacker News

Run Go Code with Go API on New Stories by Keyword from Hacker News API
Hacker News + Go
 
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
Run Go Code with the Go API

Run any Go code and use any Go package available with a simple import. Refer to the Pipedream Go docs to learn more.

 
Try it