← Google Drive + Scrapfly integrations

AI Data Extraction with Scrapfly API on Changes to Specific Files from Google Drive API

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Changes to Specific Files from the Google Drive API
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AI Data Extraction with the Scrapfly API
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Getting Started

This integration creates a workflow with a Google Drive trigger and Scrapfly 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 Changes to Specific Files trigger
    1. Connect your Google Drive account
    2. Optional- Configure Drive
    3. Configure Push notification renewal schedule
    4. Select one or more Files
    5. Configure intervalAlert
    6. Optional- Configure Minimum Interval Per File
    7. Select one or more Types of updates
  3. Configure the AI Data Extraction action
    1. Connect your Scrapfly account
    2. Configure File Path or URL
    3. Select a Content Type
    4. Configure URL
    5. Optional- Configure Charset
    6. Optional- Configure Extraction Template
    7. Optional- Configure Extraction Prompt
    8. Optional- Configure Extraction Model
    9. Optional- Configure Webhook Name
  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:Watches for changes to specific files, emitting an event when a change is made to one of those files. To watch for changes to [shared drive](https://support.google.com/a/users/answer/9310351) files, use the **Changes to Specific Files (Shared Drive)** source instead.
Version:0.2.6
Key:google_drive-changes-to-specific-files

Google Drive Overview

The Google Drive API on Pipedream allows you to automate various file management tasks, such as creating, reading, updating, and deleting files within your Google Drive. You can also share files, manage permissions, and monitor changes to files and folders. This opens up possibilities for creating workflows that seamlessly integrate with other apps and services, streamlining document handling, backup processes, and collaborative workflows.

Trigger Code

import cronParser from "cron-parser";
import sampleEmit from "./test-event.mjs";
import includes from "lodash/includes.js";
import { v4 as uuid } from "uuid";
import { MY_DRIVE_VALUE } from "../../common/constants.mjs";
import changesToSpecificFiles from "../changes-to-specific-files-shared-drive/changes-to-specific-files-shared-drive.mjs";

/**
 * This source uses the Google Drive API's
 * {@link https://developers.google.com/drive/api/v3/reference/files/watch files: watch}
 * endpoint to subscribe to changes to specific files in the user's drive.
 */
export default {
  ...changesToSpecificFiles,
  key: "google_drive-changes-to-specific-files",
  name: "Changes to Specific Files",
  description: "Watches for changes to specific files, emitting an event when a change is made to one of those files. To watch for changes to [shared drive](https://support.google.com/a/users/answer/9310351) files, use the **Changes to Specific Files (Shared Drive)** source instead.",
  version: "0.2.6",
  type: "source",
  // Dedupe events based on the "x-goog-message-number" header for the target channel:
  // https://developers.google.com/drive/api/v3/push#making-watch-requests
  dedupe: "unique",
  props: {
    ...changesToSpecificFiles.props,
    drive: {
      type: "string",
      label: "Drive",
      description: "Defaults to `My Drive`. To use a [Shared Drive](https://support.google.com/a/users/answer/9310351), use the **Changes to Specific Files (Shared Drive)** source instead.",
      optional: true,
      default: MY_DRIVE_VALUE,
    },
    updateTypes: {
      propDefinition: [
        changesToSpecificFiles.props.googleDrive,
        "updateTypes",
      ],
    },
  },
  hooks: {
    ...changesToSpecificFiles.hooks,
    async activate() {
      // Called when a component is created or updated. Handles all the logic
      // for starting and stopping watch notifications tied to the desired
      // files.

      // You can pass the same channel ID in watch requests for multiple files, so
      // our channel ID is fixed for this component to simplify the state we have to
      // keep track of.
      const channelID = uuid();

      // Subscriptions are keyed on Google's resourceID, "an opaque value that
      // identifies the watched resource". This value is included in request
      // headers, allowing us to look up the watched resource.
      let subscriptions = this._getSubscriptions() || {};

      const files = this.files;
      for (const fileID of files) {
        const {
          expiration,
          resourceId,
        } = await this.googleDrive.activateFileHook(
          channelID,
          this.http.endpoint,
          fileID,
        );
        // The fileID must be kept with the subscription metadata so we can
        // renew the watch request for this specific file when it expires.
        subscriptions[resourceId] = {
          expiration,
          fileID,
        };
      }

      // Save metadata on the subscription so we can stop / renew later
      this._setSubscriptions(subscriptions);
      this._setChannelID(channelID);
    },
    async deactivate() {
      const channelID = this._getChannelID();
      if (!channelID) {
        console.log(
          "Channel not found, cannot stop notifications for non-existent channel",
        );
        return;
      }

      const subscriptions = this._getSubscriptions() || {};
      for (const resourceId of Object.keys(subscriptions)) {
        await this.googleDrive.stopNotifications(channelID, resourceId);
      }

      // Reset DB state
      this._setSubscriptions({});
      this._setChannelID(null);
    },
  },
  methods: {
    ...changesToSpecificFiles.methods,
    _getSubscriptions() {
      return this.db.get("subscriptions") || {};
    },
    _setSubscriptions(subscriptions) {
      this.db.set("subscriptions", subscriptions);
    },
    _getNextTimerEventTimestamp(event) {
      if (event.cron) {
        return cronParser
          .parseExpression(event.cron)
          .next()
          .getTime();
      }
      if (event.interval_seconds) {
        return Date.now() + event.interval_seconds * 1000;
      }
    },
    async renewFileSubscriptions(event) {
      const subscriptions = this._getSubscriptions() || {};
      const channelID = this._getChannelID();
      const newChannelID = uuid();

      const nextRunTimestamp = this._getNextTimerEventTimestamp(event);

      for (const [
        currentResourceId,
        metadata,
      ] of Object.entries(subscriptions)) {
        const { fileID } = metadata;

        const subscription = {
          ...metadata,
          resourceId: currentResourceId,
        };
        const {
          expiration,
          resourceId,
        } = await this.googleDrive.renewFileSubscription(
          subscription,
          this.http.endpoint,
          channelID,
          newChannelID,
          fileID,
          nextRunTimestamp,
        );
        subscriptions[resourceId] = {
          expiration,
          fileID,
        };
      }
      this._setSubscriptions(subscriptions);
      this._setChannelID(newChannelID);
    },
  },
  async run(event) {
    // This function is polymorphic: it can be triggered as a cron job, to make sure we renew
    // watch requests for specific files, or via HTTP request (the change payloads from Google)

    // Component was invoked by timer
    if (event.timestamp) {
      return this.renewFileSubscriptions(event);
    }

    const channelID = this._getChannelID();
    let subscriptions = this._getSubscriptions() || {};

    const { headers } = event;

    if (
      !headers["x-goog-resource-state"] ||
      !headers["x-goog-resource-id"] ||
      !headers["x-goog-resource-uri"] ||
      !headers["x-goog-message-number"]
    ) {
      console.log("Request missing necessary headers: ", headers);
      return;
    }

    const incomingChannelID = headers["x-goog-channel-id"];
    if (incomingChannelID !== channelID) {
      console.log(
        `Channel ID of ${incomingChannelID} not equal to deployed component channel of ${channelID}`,
      );
      return;
    }

    if (subscriptions[headers["x-goog-resource-id"]] === undefined) {
      console.log(
        `Resource ID of ${headers["x-goog-resource-id"]} not currently being tracked. Exiting`,
      );
      return;
    }

    if (!includes(this.updateTypes, headers["x-goog-resource-state"])) {
      console.log(
        `Update type ${headers["x-goog-resource-state"]} not in list of updates to watch: `,
        this.updateTypes,
      );
      return;
    }

    // We observed false positives where a single change to a document would trigger two changes:
    // one to "properties" and another to "content,properties". But changes to properties
    // alone are legitimate, most users just won't want this source to emit in those cases.
    // If x-goog-changed is _only_ set to "properties", only move on if the user set the prop
    if (
      !this.watchForPropertiesChanges &&
      headers["x-goog-changed"] === "properties"
    ) {
      console.log(
        "Change to properties only, which this component is set to ignore. Exiting",
      );
      return;
    }

    const file = await this.googleDrive.getFileMetadata(
      headers["x-goog-resource-uri"],
    );

    if (!file || !Object.keys(file).length) {
      console.log("No file metadata returned, nothing to emit");
      return;
    }

    const [
      checkedFile,
    ] = this.checkMinimumInterval([
      file,
    ]);
    if (checkedFile) {
      this.processChange(file, headers);
    }
  },
  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
Google DrivegoogleDriveappThis component uses the Google Drive app.
N/Adb$.service.dbThis component uses $.service.db to maintain state between executions.
N/Ahttp$.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.
Drivedrivestring

Defaults to My Drive. To use a Shared Drive, use the Changes to Specific Files (Shared Drive) source instead.

Filesfilesstring[]Select a value from the drop down menu.
Minimum Interval Per FileperFileIntervalinteger

How many minutes to wait until the same file can emit another event.

If set to 0, this interval is disabled and all events will be emitted.

Types of updatesupdateTypesstring[]Select a value from the drop down menu:{ "label": "'sync' - A channel was successfully created. You can expect to start receiving notifications for it.", "value": "sync" }{ "label": "'add' - A resource was created or shared.", "value": "add" }{ "label": "'remove' - An existing resource was deleted or unshared.", "value": "remove" }{ "label": "'update' - One or more properties (metadata) of a resource have been updated.", "value": "update" }{ "label": "'trash' - A resource has been moved to the trash.", "value": "trash" }{ "label": "'untrash' - A resource has been removed from the trash.", "value": "untrash" }{ "label": "'change' - One or more changelog items have been added.", "value": "change" }

Trigger Authentication

Google Drive uses OAuth authentication. When you connect your Google Drive account, Pipedream will open a popup window where you can sign into Google Drive and grant Pipedream permission to connect to your account. Pipedream securely stores and automatically refreshes the OAuth tokens so you can easily authenticate any Google Drive API.

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

https://www.googleapis.com/auth/drive

About Google Drive

Google Drive is a file storage and synchronization service which allows you to create and share your work online, and access your documents from anywhere.

Action

Description:Automate content extraction from any text-based source using AI, LLM, and custom parsing. [See the documentation](https://scrapfly.io/docs/extraction-api/getting-started)
Version:0.1.0
Key:scrapfly-ai-data-extraction

Action Code

import { ConfigurationError } from "@pipedream/platform";
import { getFileStream } from "@pipedream/platform";
import scrapfly from "../../scrapfly.app.mjs";

export default {
  key: "scrapfly-ai-data-extraction",
  name: "AI Data Extraction",
  description: "Automate content extraction from any text-based source using AI, LLM, and custom parsing. [See the documentation](https://scrapfly.io/docs/extraction-api/getting-started)",
  version: "0.1.0",
  type: "action",
  props: {
    scrapfly,
    body: {
      propDefinition: [
        scrapfly,
        "body",
      ],
    },
    contentType: {
      propDefinition: [
        scrapfly,
        "contentType",
      ],
    },
    url: {
      propDefinition: [
        scrapfly,
        "url",
      ],
    },
    charset: {
      type: "string",
      label: "Charset",
      description: "Charset of the document pass in the body. If you are not sure, you can use the `auto` value and we will try to detect it. Bad charset can lead to bad extraction, so it's important to set it correctly. **The most common charset is `utf-8` for text document and `ascii` for binary**. The symptom of a bad charset is that the text is not correctly displayed (accent, special characters, etc).",
      default: "auto",
      optional: true,
    },
    extractionTemplate: {
      type: "string",
      label: "Extraction Template",
      description: "Define an extraction template to get structured data. Use an ephemeral template (declared on the fly on the API call) or a stored template (declared in the dashboard) by using the template name.",
      optional: true,
    },
    extractionPrompt: {
      type: "string",
      label: "Extraction Prompt",
      description: "Instruction to extract data or ask a question on the scraped content with an LLM (Large Language Model). [Must be url encoded](https://scrapfly.io/web-scraping-tools/urlencode).",
      optional: true,
    },
    extractionModel: {
      type: "string",
      label: "Extraction Model",
      description: "AI Extraction to auto parse document to get structured data. E.g., `product`, `review`, `real-estate`, `article`.",
      optional: true,
    },
    webhookName: {
      type: "string",
      label: "Webhook Name",
      description: "Queue you scrape request and redirect API response to a provided webhook endpoint. You can create a webhook endpoint from your `dashboard`, it takes the name of the webhook. Webhooks are scoped to the given project/env.",
      optional: true,
    },
  },
  async run({ $ }) {
    if (!this.extractionTemplate && !this.extractionPrompt && !this.extractionModel) {
      throw new ConfigurationError("You must provide at least **Extraction Template**, **Extraction Prompt** or **Extraction Model**");
    }

    const stream = await getFileStream(this.body);
    const chunks = [];
    for await (const chunk of stream) {
      chunks.push(chunk);
    }
    const data = Buffer.concat(chunks).toString();

    const response = await this.scrapfly.automateContentExtraction({
      $,
      headers: {
        "content-type": this.contentType,
      },
      maxBodyLength: Infinity,
      params: {
        url: this.url,
        charset: this.charset,
        extraction_template: this.extractionTemplate,
        extraction_prompt: this.extractionPrompt,
        extraction_model: this.extractionModel,
        webhook_name: this.webhookName,
      },
      data,
    });

    $.export("$summary", "Successfully extracted content");
    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
ScrapflyscrapflyappThis component uses the Scrapfly app.
File Path or URLbodystring

The file containing the content of the page you want to extract data from. The content must be in the format specified by Content Type. Provide either a file URL or a path to a file in the /tmp directory (for example, /tmp/myFile.txt)

Content TypecontentTypestringSelect a value from the drop down menu:application/jsonapplication/jsonldapplication/xmltext/plaintext/htmltext/markdowntext/csvapplication/xhtml+xml
URLurlstring

This URL is used to transform any relative URLs in the document into absolute URLs automatically. It can be either the base URL or the exact URL of the document. Must be url encoded

Charsetcharsetstring

Charset of the document pass in the body. If you are not sure, you can use the auto value and we will try to detect it. Bad charset can lead to bad extraction, so it's important to set it correctly. The most common charset is utf-8 for text document and ascii for binary. The symptom of a bad charset is that the text is not correctly displayed (accent, special characters, etc).

Extraction TemplateextractionTemplatestring

Define an extraction template to get structured data. Use an ephemeral template (declared on the fly on the API call) or a stored template (declared in the dashboard) by using the template name.

Extraction PromptextractionPromptstring

Instruction to extract data or ask a question on the scraped content with an LLM (Large Language Model). Must be url encoded

Extraction ModelextractionModelstring

AI Extraction to auto parse document to get structured data. E.g., product, review, real-estate, article.

Webhook NamewebhookNamestring

Queue you scrape request and redirect API response to a provided webhook endpoint. You can create a webhook endpoint from your dashboard, it takes the name of the webhook. Webhooks are scoped to the given project/env.

Action Authentication

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

About Scrapfly

Scrapfly Web Scraping API for developer

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