Convert HTML to PNG with CustomJS API on New Item in Feed from RSS API

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Trigger workflow on

New Item in Feed from the RSS API

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Convert HTML to PNG with the CustomJS API

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Getting Started#

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

Select this integration
Configure the New Item in Feed trigger
1. Connect your RSS account
2. Configure timer
3. Configure Feed URL
4. Configure Published After
Configure the Convert HTML to PNG action
1. Connect your CustomJS account
2. Configure HTML
3. Configure Filename
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 Item in Feed on RSS

Description:Emit new items from an RSS feed

Version:1.2.7

Key:rss-new-item-in-feed

View on GitHub

RSS Overview#

The RSS app allows users to automatically fetch and parse updates from web feeds. This functionality is pivotal for staying abreast of content changes or updates from websites, blogs, and news outlets that offer RSS feeds. With Pipedream, you can harness the RSS API to trigger workflows that enable a broad range of automations, like content aggregation, monitoring for specific keywords, notifications, and data synchronization across platforms.

Trigger Code#

import { defineSource } from "@pipedream/types";
import rss from "../../app/rss.app.mjs";
import rssCommon from "../common/common.mjs";
export default defineSource({
    ...rssCommon,
    key: "rss-new-item-in-feed",
    name: "New Item in Feed",
    description: "Emit new items from an RSS feed",
    version: "1.2.7",
    type: "source",
    dedupe: "unique",
    props: {
        ...rssCommon.props,
        url: {
            propDefinition: [
                rss,
                "url",
            ],
        },
        publishedAfter: {
            type: "string",
            label: "Published After",
            description: "Emit items published after the specified date in ISO 8601 format .e.g `2022-12-07T12:57:10+07:00`",
            default: new Date(Date.now() - 24 * 60 * 60 * 1000).toISOString(), // default to one day ago
        },
    },
    hooks: {
        async activate() {
            // Try to parse the feed one time to confirm we can fetch and parse.
            // The code will throw any errors to the user.
            await this.rss.fetchAndParseFeed(this.url);
        },
    },
    methods: {
        ...rssCommon.methods,
        generateMeta: function (item) {
            return {
                id: this.rss.itemKey(item),
                summary: item.title,
                ts: Date.now(),
            };
        },
    },
    async run() {
        const items = await this.rss.fetchAndParseFeed(this.url);
        for (const item of items.reverse()) {
            const publishedAfter = +new Date(this.publishedAfter);
            const ts = this.rss.itemTs(item);
            if (Number.isNaN(publishedAfter) || publishedAfter > ts) {
                continue;
            }
            const meta = this.generateMeta(item);
            this.$emit(item, meta);
        }
    },
});

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
RSS	`rss`	`app`	This component uses the RSS app.
	`timer`	`$.interface.timer`	How often you want to poll the feed for new items
Feed URL	`url`	`string`	Enter the URL for any public RSS feed
Published After	`publishedAfter`	`string`	Emit items published after the specified date in ISO 8601 format .e.g `2022-12-07T12:57:10+07:00`

Trigger Authentication#

The RSS API does not require authentication.

About RSS#

Real Simple Syndication

Action#

Convert HTML to PNG on CustomJS

Description:Converts an HTML string to a PNG image. [See the documentation](https://www.customjs.space/api/docs#_4-html-to-png)

Version:0.0.1

Key:customjs-convert-html-to-png

View on GitHub

Action Code#

import customjs from "../../customjs.app.mjs";
import fs from "fs";
import { normalizeFilepath } from "../common/utils.mjs";

export default {
  key: "customjs-convert-html-to-png",
  name: "Convert HTML to PNG",
  description: "Converts an HTML string to a PNG image. [See the documentation](https://www.customjs.space/api/docs#_4-html-to-png)",
  version: "0.0.1",
  type: "action",
  props: {
    customjs,
    html: {
      type: "string",
      label: "HTML",
      description: "The HTML string to be converted to a PNG",
    },
    filename: {
      propDefinition: [
        customjs,
        "filename",
      ],
    },
  },
  async run({ $ }) {
    const fileContent = await this.customjs.convertHtmlToPng({
      $,
      data: {
        input: this.html,
        code: "const { HTML2PNG } = require('./utils'); return HTML2PNG(input);",
        returnBinary: "true",
      },
    });

    const filepath = normalizeFilepath(this.filename, "png");
    fs.writeFileSync(filepath, Buffer.from(fileContent));

    $.export("$summary", "Successfully converted HTML to PNG");
    return {
      filename: this.filename,
      filepath,
    };
  },
};

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
CustomJS	`customjs`	`app`	This component uses the CustomJS app.
HTML	`html`	`string`	The HTML string to be converted to a PNG
Filename	`filename`	`string`	Download the file to the `/tmp` directory with the specified filename.