Screenshot a Page with Puppeteer API on New Scheduled Tasks from Pipedream API

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New Scheduled Tasks from the Pipedream API

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Screenshot a Page with the Puppeteer API

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Getting Started#

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

Select this integration
Configure the New Scheduled Tasks trigger
1. Connect your Pipedream account
2. Optional- Configure Secret
Configure the Screenshot a Page action
1. Connect your Puppeteer account
2. Configure URL
3. Optional- Configure Download Path
4. Optional- Configure Capture Beyond Viewport
5. Optional- Configure Clip Height
6. Optional- Configure Clip Scale
7. Optional- Configure Clip Width
8. Optional- Configure Clip X
9. Optional- Configure Clip Y
10. Optional- Select a Encoding
11. Optional- Configure From Surface
12. Optional- Configure Full Page
13. Optional- Configure Omit Background
14. Optional- Configure Optimize For Speed
15. Optional- Configure Quality
16. Optional- Select a Type
17. Configure syncDir
18. Optional- Configure Browser Timeout
19. Optional- Configure Page Timeout
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 Scheduled Tasks on Pipedream

Description:Exposes an HTTP API for scheduling messages to be emitted at a future time

Version:0.3.1

Key:pipedream-new-scheduled-tasks

View on GitHub

Pipedream Overview#

Pipedream is an API that allows you to build applications that can connect to
various data sources and processes them in real-time. You can use Pipedream to
create applications that can perform ETL (Extract, Transform, and Load) tasks,
as well as to create data-driven workflows.

Some examples of applications you can build using the Pipedream API include:

An application that can extract data from a database, transform it, and then
load it into another database.
An application that can monitor a data source for changes, and then trigger a
workflow in response to those changes.
An application that can poll an API for new data, and then process that data
in real-time.

Trigger Code#

import pipedream from "../../pipedream.app.mjs";
import sampleEmit from "./test-event.mjs";
import { uuid } from "uuidv4";

export default {
  key: "pipedream-new-scheduled-tasks",
  name: "New Scheduled Tasks",
  type: "source",
  description:
    "Exposes an HTTP API for scheduling messages to be emitted at a future time",
  version: "0.3.1",
  dedupe: "unique", // Dedupe on a UUID generated for every scheduled task
  props: {
    pipedream,
    secret: {
      type: "string",
      secret: true,
      label: "Secret",
      optional: true,
      description:
        "**Optional but recommended**: if you enter a secret here, you must pass this value in the `x-pd-secret` HTTP header when making requests",
    },
    http: {
      label: "Endpoint",
      description: "The endpoint where you'll send task scheduler requests",
      type: "$.interface.http",
      customResponse: true,
    },
    db: "$.service.db",
  },
  methods: {
    // To schedule future emits, we emit to the selfChannel of the component
    selfChannel() {
      return "self";
    },
    // Queue for future emits that haven't yet been delivered
    queuedEventsChannel() {
      return "$in";
    },
    httpRespond({
      status, body,
    }) {
      this.http.respond({
        headers: {
          "content-type": "application/json",
        },
        status,
        body,
      });
    },
    async selfSubscribe() {
      // Subscribe the component to itself. We do this here because even in
      // the activate hook, the component isn't available to take subscriptions.
      // Scheduled tasks are sent to the self channel, which emits the message at
      // the specified delivery_ts to this component.
      const isSubscribedToSelf = this.db.get("isSubscribedToSelf");
      if (!isSubscribedToSelf) {
        const componentId = process.env.PD_COMPONENT;
        const selfChannel = this.selfChannel();
        console.log(`Subscribing to ${selfChannel} channel for event source`);
        console.log(
          await this.pipedream.subscribe(componentId, componentId, selfChannel),
        );
        this.db.set("isSubscribedToSelf", true);
      }
    },
    validateEventBody(event, operation) {
      const errors = [];

      // Secrets are optional, so we first check if the user configured
      // a secret, then check its value against the prop (validation below)
      if (this.secret && event.headers["x-pd-secret"] !== this.secret) {
        errors.push(
          "Secret on incoming request doesn't match the configured secret",
        );
      }

      if (operation === "schedule") {
        const {
          timestamp,
          message,
        } = event.body;
        // timestamp should be an ISO 8601 string. Parse and check for validity below.
        const epoch = Date.parse(timestamp);

        if (!timestamp) {
          errors.push(
            "No timestamp included in payload. Please provide an ISO8601 timestamp in the 'timestamp' field",
          );
        }
        if (timestamp && !epoch) {
          errors.push("Timestamp isn't a valid ISO 8601 string");
        }
        if (!message) {
          errors.push("No message passed in payload");
        }
      }

      return errors;
    },
    scheduleTask(event) {
      const errors = this.validateEventBody(event, "schedule");
      let status, body;

      if (errors.length) {
        console.log(errors);
        status = 400;
        body = {
          errors,
        };
      } else {
        const id = this.emitScheduleEvent(event.body, event.body.timestamp);
        status = 200;
        body = {
          msg: "Successfully scheduled task",
          id,
        };
      }

      this.httpRespond({
        status,
        body,
      });
    },
    emitScheduleEvent(event, timestamp) {
      const selfChannel = this.selfChannel();
      const epoch = Date.parse(timestamp);
      const $id = uuid();

      console.log(`Scheduled event to emit on: ${new Date(epoch)}`);

      this.$emit(
        {
          ...event,
          $channel: selfChannel,
          $id,
        },
        {
          name: selfChannel,
          id: $id,
          delivery_ts: epoch,
        },
      );

      return $id;
    },
    async cancelTask(event) {
      const errors = this.validateEventBody(event, "cancel");
      let status, msg;

      if (errors.length) {
        console.log(errors);
        status = 400;
        msg = "Secret on incoming request doesn't match the configured secret";
      } else {
        try {
          const id = event.body.id;
          const isCanceled = await this.deleteEvent(event);
          if (isCanceled) {
            status = 200;
            msg = `Cancelled scheduled task for event ${id}`;
          } else {
            status = 404;
            msg = `No event with ${id} found`;
          }
        } catch (error) {
          console.log(error);
          status = 500;
          msg = "Failed to schedule task. Please see the logs";
        }
      }

      this.httpRespond({
        status,
        body: {
          msg,
        },
      });
    },
    async deleteEvent(event) {
      const componentId = process.env.PD_COMPONENT;
      const inChannel = this.queuedEventsChannel();

      // The user must pass a scheduled event UUID they'd like to cancel
      // We lookup the event by ID and delete it
      const { id } = event.body;

      // List events in the $in channel - the queue of scheduled events, to be emitted in the future
      const events = await this.pipedream.listEvents(
        componentId,
        inChannel,
      );
      console.log("Events: ", events);

      // Find the event in the list by id
      const eventToCancel = events.data.find((e) => {
        const { metadata } = e;
        return metadata.id === id;
      });

      console.log("Event to cancel: ", eventToCancel);

      if (!eventToCancel) {
        console.log(`No event with ${id} found`);
        return false;
      }

      // Delete the event
      await this.pipedream.deleteEvent(
        componentId,
        eventToCancel.id,
        inChannel,
      );
      return true;
    },
    emitEvent(event, summary) {
      // Delete the channel name and id from the incoming event, which were used only as metadata
      const id = event.$id;
      delete event.$channel;
      delete event.$id;

      this.$emit(event, {
        summary: summary ?? JSON.stringify(event),
        id,
        ts: +new Date(),
      });
    },
  },
  async run(event) {
    await this.selfSubscribe();

    const { path } = event;
    if (path === "/schedule") {
      this.scheduleTask(event);
    } else if (path === "/cancel") {
      await this.cancelTask(event);
    } else if (event.$channel === this.selfChannel()) {
      this.emitEvent(event);
    }
  },
  sampleEmit,
};

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
Pipedream	`pipedream`	`app`	This component uses the Pipedream app.
Secret	`secret`	`string`	Optional but recommended: if you enter a secret here, you must pass this value in the `x-pd-secret` HTTP header when making requests
N/A	`http`	`$.interface.http`	This component uses `$.interface.http` to generate a unique URL when the component is first instantiated. Each request to the URL will trigger the `run()` method of the component.
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.

Trigger Authentication#

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

About Pipedream#

Integration platform for developers

Action#

Screenshot a Page on Puppeteer

Description:Captures a screenshot of a page using Puppeteer. [See the documentation](https://pptr.dev/api/puppeteer.page.screenshot)

Version:1.0.5

Key:puppeteer-screenshot-page

View on GitHub

Puppeteer Overview#

Puppeteer is a Node.js library which provides a high-level API to control Chrome/Chromium over the DevTools Protocol. Puppeteer runs in headless mode on Chromium on Pipedream.

Using Puppeteer you can perform tasks including:

Capture Screenshots: Convert webpages into images.
Processing PDFs: parse and scan PDFs.
Web Scraping: Extract data from websites.
UI/UX Testing: Verify user interface and experience.
Integration with Test Frameworks: Combine with testing frameworks.
Task Automation: Automate web-related tasks like form filling.
Functional Testing: Automate user interactions to test web application functionality.
Regression Testing: Ensure new code changes don't introduce bugs.

Action Code#

import puppeteer from "../../puppeteer.app.mjs";
import constants from "../../common/constants.mjs";
import common from "../common/common.mjs";
import fs from "fs";
import { ConfigurationError } from "@pipedream/platform";

export default {
  ...common,
  key: "puppeteer-screenshot-page",
  name: "Screenshot a Page",
  description:
    "Captures a screenshot of a page using Puppeteer. [See the documentation](https://pptr.dev/api/puppeteer.page.screenshot)",
  version: "1.0.5",
  annotations: {
    destructiveHint: false,
    openWorldHint: true,
    readOnlyHint: false,
  },
  type: "action",
  props: {
    puppeteer,
    ...common.props,
    downloadPath: {
      type: "string",
      label: "Download Path",
      description:
        "Download the screenshot to the `/tmp` directory with the specified filename",
      optional: true,
    },
    captureBeyondViewport: {
      type: "boolean",
      label: "Capture Beyond Viewport",
      description: "Capture the screenshot beyond the viewport.",
      optional: true,
      default: true,
    },
    clipHeight: {
      type: "string",
      label: "Clip Height",
      description: "Specifies the height of the region of the page to clip.",
      optional: true,
    },
    clipScale: {
      type: "string",
      label: "Clip Scale",
      description: "Specifies the scale of the region of the page to clip.",
      default: "1",
      optional: true,
    },
    clipWidth: {
      type: "string",
      label: "Clip Width",
      description: "Specifies the width of the region of the page to clip.",
      optional: true,
    },
    clipX: {
      type: "string",
      label: "Clip X",
      description: "Specifies the X value of the region of the page to clip.",
      optional: true,
    },
    clipY: {
      type: "string",
      label: "Clip Y",
      description: "Specifies Y value of the region of the page to clip.",
      optional: true,
    },
    encoding: {
      type: "string",
      label: "Encoding",
      description: "Encoding of the image.",
      optional: true,
      default: "binary",
      options: constants.IMAGE_ENCODING,
    },
    fromSurface: {
      type: "boolean",
      label: "From Surface",
      description:
        "Capture the screenshot from the surface, rather than the view.",
      optional: true,
      default: false,
    },
    fullPage: {
      type: "boolean",
      label: "Full Page",
      description: "When true, takes a screenshot of the full page.",
      optional: true,
      default: false,
    },
    omitBackground: {
      type: "boolean",
      label: "Omit Background",
      description:
        "Hides default white background and allows capturing screenshots with transparency.",
      optional: true,
      default: false,
    },
    optimizeForSpeed: {
      type: "boolean",
      label: "Optimize For Speed",
      description: "Optimize for speed.",
      optional: true,
      default: false,
    },
    quality: {
      type: "integer",
      label: "Quality",
      description:
        "Quality of the image, between 0-100. Not applicable to png images.",
      optional: true,
    },
    type: {
      type: "string",
      label: "Type",
      description: "Type of the screenshot image.",
      optional: true,
      default: "png",
      options: constants.SCREENSHOT_TYPE,
    },
    syncDir: {
      type: "dir",
      accessMode: "write",
      sync: true,
    },
    browserTimeout: {
      type: "integer",
      label: "Browser Timeout",
      description: "Maximum time in seconds to wait for the browser to start. Default is `30` seconds.",
      optional: true,
    },
    pageTimeout: {
      type: "integer",
      label: "Page Timeout",
      description: "Maximum time in seconds to wait for the page to load. Default is `30` seconds.",
      optional: true,
    },
  },
  methods: {
    ...common.methods,
    async downloadToTMP(screenshot) {
      const path = this.downloadPath.includes("/tmp")
        ? this.downloadPath
        : `/tmp/${this.downloadPath}`;
      fs.writeFileSync(path, screenshot);
      return path;
    },
  },
  async run({ $ }) {
    if (
      (this.clipHeight || this.clipWidth || this.clipX || this.clipY) &&
      !(this.clipHeight && this.clipWidth && this.clipX && this.clipY)
    ) {
      throw new ConfigurationError(
        "Clip height, width, X, and Y must be specified to create clip.",
      );
    }

    const clip =
      this.clipHeight || this.clipWidth || this.clipX || this.clipY
        ? {
          height: parseFloat(this.clipHeight),
          scale: parseFloat(this.clipScale),
          width: parseFloat(this.clipWidth),
          x: parseFloat(this.clipX),
          y: parseFloat(this.clipY),
        }
        : undefined;

    const options = {
      captureBeyondViewport: this.captureBeyondViewport,
      clip,
      encoding: this.encoding,
      fromSurface: this.fromSurface,
      fullPage: this.fullPage,
      omitBackground: this.omitBackground,
      optimizeForSpeed: this.optimizeForSpeed,
      quality: this.quality,
      type: this.type,
    };

    const url = this.normalizeUrl();

    const browserOptions = this.browserTimeout
      ? {
        timeout: this.browserTimeout * 1000,
      }
      : undefined;

    const browser = await this.puppeteer.launch(browserOptions);

    const page = await browser.newPage();

    if (this.pageTimeout) {
      page.setDefaultTimeout(this.pageTimeout * 1000);
    }

    await page.goto(url);
    const screenshot = await page.screenshot(options);
    await browser.close();

    const filePath =
      screenshot && this.downloadPath
        ? await this.downloadToTMP(screenshot)
        : undefined;

    if (screenshot) {
      $.export("$summary", `Successfully captured screenshot from ${url}`);
    }

    return filePath
      ? filePath
      : screenshot.toString("base64");
  },
};

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
Puppeteer	`puppeteer`	`app`	This component uses the Puppeteer app.
URL	`url`	`string`	The URL of the page to scrape. For example, `https://example.com`.
Download Path	`downloadPath`	`string`	Download the screenshot to the `/tmp` directory with the specified filename
Capture Beyond Viewport	`captureBeyondViewport`	`boolean`	Capture the screenshot beyond the viewport.
Clip Height	`clipHeight`	`string`	Specifies the height of the region of the page to clip.
Clip Scale	`clipScale`	`string`	Specifies the scale of the region of the page to clip.
Clip Width	`clipWidth`	`string`	Specifies the width of the region of the page to clip.
Clip X	`clipX`	`string`	Specifies the X value of the region of the page to clip.
Clip Y	`clipY`	`string`	Specifies Y value of the region of the page to clip.
Encoding	`encoding`	`string`	Select a value from the drop down menu:`base64binary`
From Surface	`fromSurface`	`boolean`	Capture the screenshot from the surface, rather than the view.
Full Page	`fullPage`	`boolean`	When true, takes a screenshot of the full page.
Omit Background	`omitBackground`	`boolean`	Hides default white background and allows capturing screenshots with transparency.
Optimize For Speed	`optimizeForSpeed`	`boolean`	Optimize for speed.
Quality	`quality`	`integer`	Quality of the image, between 0-100. Not applicable to png images.
Type	`type`	`string`	Select a value from the drop down menu:`pngjpegwebp`
syncDir	`syncDir`	`dir`
Browser Timeout	`browserTimeout`	`integer`	Maximum time in seconds to wait for the browser to start. Default is `30` seconds.
Page Timeout	`pageTimeout`	`integer`	Maximum time in seconds to wait for the page to load. Default is `30` seconds.

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Popular Triggers#

New Scheduled Tasks from the Pipedream API

Exposes an HTTP API for scheduling messages to be emitted at a future time

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Card Due Date Reminder from the Pipedream API

Emit new event at a specified time before a card is due.

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New Upcoming Calendar Event from the Pipedream API

Emit new event when a Calendar event is upcoming, this source is using reminderMinutesBeforeStart property of the event to determine the time it should emit.

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