Send Message with Discord 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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Send Message with the Discord API

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Getting Started#

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

Select this integration
Configure the Changes to Specific Files trigger
1. Connect your Google Drive account
2. Optional- Configure Drive
3. Optional- Configure Watch for changes to file properties
4. Configure Push notification renewal schedule
5. Optional- Select one or more Files
6. Select one or more Types of updates
Configure the Send Message action
1. Connect your Discord account
2. Configure channel
3. Configure Message
4. Optional- Configure Thread ID
5. Optional- Configure Username
6. Optional- Configure Avatar URL
7. Optional- Configure Include link to workflow
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#

Changes to Specific Files on Google Drive

Description:Watches for changes to specific files, emitting an event any time 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:0.1.2

Key:google_drive-changes-to-specific-files

View on GitHub

Google Drive Overview#

Using the Google Drive API, you can build applications that:

Create and manage files and folders
Download and upload files
Share and organize files
Search for files
Track changes to files
And much more!

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 "../../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 any time 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: "0.1.2",
  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 = this._getChannelID() || 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) {
      // Assume subscription & channelID may all be undefined at
      // this point Handle their absence appropriately.
      const subscriptions = this._getSubscriptions() || {};
      const channelID = this._getChannelID() || 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,
          fileID,
          nextRunTimestamp,
        );
        subscriptions[resourceId] = {
          expiration,
          fileID,
        };
      }
      this._setSubscriptions(subscriptions);
      this._setChannelID(channelID);
    },
  },
  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;
    }

    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.

Label	Prop	Type	Description
Google Drive	`googleDrive`	`app`	This component uses the Google Drive app.
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.
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.
Drive	`drive`	`string`	Defaults to `My Drive`. To use a Shared Drive, use the Changes to Specific Files (Shared Drive) source instead.
Watch for changes to file properties	`watchForPropertiesChanges`	`boolean`	Watch for changes to file properties in addition to changes to content. Defaults to `false`, watching for only changes to content.
Push notification renewal schedule	`timer`	`$.interface.timer`	The Google Drive API requires occasional renewal of push notification subscriptions. This runs in the background, so you should not need to modify this schedule.
Files	`files`	`string[]`	Select a value from the drop down menu.
Types of updates	`updateTypes`	`string[]`	Select a value from the drop down menu:`syncaddremoveupdatetrashuntrashchange`

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:

emailprofilehttps://www.googleapis.com/auth/drivehttps://www.googleapis.com/auth/drive.readonly

About Google Drive#

Internet-related services and products

Action#

Send Message on Discord

Description:Send a simple message to a Discord channel

Version:1.0.1

Key:discord-send-message

View on GitHub

Discord Overview#

The Pipedream Discord app enables you to build event-driven workflows that interact with the Discord API. When you authorize the Pipedream app's access to your guilds, you can use Pipedream workflows to perform common Discord actions, or write your own code against the Discord API.

Action Code#

import common from "../common/common.mjs";

export default {
  ...common,
  key: "discord-send-message",
  name: "Send Message",
  description: "Send a simple message to a Discord channel",
  version: "1.0.1",
  type: "action",
  async run({ $ }) {
    const {
      message,
      avatarURL,
      threadID,
      username,
      includeSentViaPipedream,
    } = this;

    try {
      const resp = await this.discord.sendMessage(this.channel, {
        avatar_url: avatarURL,
        username,
        content: includeSentViaPipedream
          ? this.appendPipedreamText(message)
          : message,
      }, {
        thread_id: threadID,
      });
      $.export("$summary", "Message sent successfully");
      return resp || {
        success: true,
      };
    } catch (err) {
      console.log(err);
      const unsentMessage = this.getUserInputProps();
      $.export("unsent", unsentMessage);
      throw err;
    }
  },
};

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
Discord	`discord`	`app`	This component uses the Discord app.
channel	`channel`	`$.discord.channel`
Message	`message`	`string`	Enter a simple message up to 2000 characters. This is the most commonly used field. However, it's optional if you pass embed content.
Thread ID	`threadID`	`string`	If provided, the message will be posted to this thread
Username	`username`	`string`	Overrides the current username of the webhook
Avatar URL	`avatarURL`	`string`	If used, it overrides the default avatar of the webhook. Note: Consecutive posts by the same username within 10 minutes of each other will not display updated avatar.
Include link to workflow	`includeSentViaPipedream`	`boolean`	Defaults to `true`, includes a link to this workflow at the end of your Discord message.

Action Authentication#

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

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

botemailidentifyguilds

About Discord#

Use this app to create a Discord source that emits messages from your guild to a Pipedream workflow.

More Ways to Connect Discord + Google Drive#

Other Popular Integrations#

Create a New File with Google Drive API on New Message from Discord API

Discord + Google Drive

Send Message with Discord API on Changes to Specific Files from Google Drive API

Pipedream makes it easy to connect APIs for Discord, Google Drive and 1,600+ other apps remarkably fast.

Trusted by 750,000+ developers from startups to Fortune 500 companies

Developers ♥ Pipedream

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