← Pipedream + PDF.co integrations

Barcode Reader with PDF.co API on New Scheduled Tasks from Pipedream API

Pipedream makes it easy to connect APIs for PDF.co, Pipedream and 2,200+ other apps remarkably fast.

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New Scheduled Tasks from the Pipedream API
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Barcode Reader with the PDF.co API
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Developers Pipedream

Getting Started

This integration creates a workflow with a Pipedream trigger and PDF.co 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 Scheduled Tasks trigger
    1. Connect your Pipedream account
    2. Optional- Configure Secret
  3. Configure the Barcode Reader action
    1. Connect your PDF.co account
    2. Configure URL
    3. Select one or more Type
    4. Optional- Configure HTTP Username
    5. Optional- Configure HTTP Password
    6. Optional- Configure Pages
    7. Optional- Configure Async
    8. Optional- Configure Profiles
  4. Deploy the workflow
  5. Send a test event to validate your setup
  6. 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

Description:Exposes an HTTP API for scheduling messages to be emitted at a future time
Version:0.3.1
Key:pipedream-new-scheduled-tasks

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.
LabelPropTypeDescription
PipedreampipedreamappThis component uses the Pipedream app.
Secretsecretstring

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/Ahttp$.interface.httpThis component uses $.interface.http to generate a unique URL when the component is first instantiated. Each request to the URL will trigger the run() method of the component.
N/Adb$.service.dbThis 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

Description:Read barcodes from images and PDF. Can read all popular barcode types from QR Code and Code 128, EAN to DataMatrix, PDF417, GS1 and many other barcodes. [See docs here](https://apidocs.pdf.co/41-barcode-reader)
Version:0.0.1
Key:pdf_co-barcode-reader

PDF.co Overview

PDF.co API on Pipedream opens up opportunities for automating document handling tasks. You can create PDFs from scratch, merge multiple documents, extract text or data, convert PDFs to different formats, and even perform complex operations like filling out forms programmatically. With Pipedream's serverless platform, these capabilities can be integrated into workflows that respond to events, schedule tasks, or trigger on specific conditions, streamlining processes that involve PDF manipulation.

Action Code

import app from "../../pdf_co.app.mjs";
import constants from "../common/constants.mjs";

export default {
  name: "Barcode Reader",
  description: "Read barcodes from images and PDF. Can read all popular barcode types from QR Code and Code 128, EAN to DataMatrix, PDF417, GS1 and many other barcodes. [See docs here](https://apidocs.pdf.co/41-barcode-reader)",
  key: "pdf_co-barcode-reader",
  version: "0.0.1",
  type: "action",
  props: {
    app,
    url: {
      propDefinition: [
        app,
        "url",
      ],
    },
    types: {
      type: "string[]",
      label: "Type",
      description: "List of barcode types to decode.",
      options: constants.BARCODE_READER_TYPE_OPTS,
    },
    httpusername: {
      propDefinition: [
        app,
        "httpusername",
      ],
    },
    httppassword: {
      propDefinition: [
        app,
        "httppassword",
      ],
    },
    pages: {
      propDefinition: [
        app,
        "pages",
      ],
    },
    async: {
      propDefinition: [
        app,
        "async",
      ],
    },
    profiles: {
      propDefinition: [
        app,
        "profiles",
      ],
    },
  },
  async run({ $ }) {
    const param = {
      url: this.url,
      types: this.types?.join(", "),
      httpusername: this.httpusername,
      httppassword: this.httppassword,
      pages: this.pages,
      async: this.async,
      profiles: this.profiles,
    };
    const response = await this.app.readBarcode(
      $,
      param,
    );
    $.export("$summary", `Successfully parsed barcode from: ${param.url}`);
    return response;
  },
};

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
PDF.coappappThis component uses the PDF.co app.
URLurlstring

URL to the source file. Supports links from Google Drive, Dropbox and from built-in PDF.co files storage.

Typetypesstring[]Select a value from the drop down menu:AustralianPostCodeAztecCircularI2of5CodabarCodablockFCode128Code16KCode39Code39ExtendedCode39Mod43Code39Mod43ExtendedCode93DataMatrixEAN13EAN2EAN5EAN8GS1GS1DataBarExpandedGS1DataBarExpandedStackedGS1DataBarLimitedGS1DataBarOmnidirectionalGS1DataBarStackedGTIN12GTIN13GTIN14GTIN8IntelligentMailInterleaved2of5ITF14MaxiCodeMICRMicroPDFMSIPatchCodePDF417PharmacodePostNetPZNQRCodeRoyalMailRoyalMailKIXTriopticUPCAUPCEUPU
HTTP Usernamehttpusernamestring

HTTP auth user name if required to access source url.

HTTP Passwordhttppasswordstring

HTTP auth password if required to access source url.

Pagespagesstring

For ALL pages just leave this param empty. Comma-separated list of page indices (or ranges) to process. the very first page starts at 0 (zero). To set a range use the dash -, for example: 0,2-5,7-. To set a range from index to the last page use range like this: 2- (from page #3 as the index starts at zero and till the end of the document). Example: 0,2-5,7- means first page, then 3rd page to 6th page, and then the range from 8th (index = 7) page till the end of the document.

Asyncasyncboolean

Runs processing asynchronously. Returns JobId.

Profilesprofilesany

Use this parameter to set additional configuration for fine tuning and extra options. Explore PDF.co for profile examples.

Action Authentication

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

About PDF.co

PDF.co is a API platform for data extraction from PDF, spreadsheets, barcodes. 300+ integrations supported.

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