Run Go Code with Go API on Updated Page in Database from Notion API

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Updated Page in Database from the Notion API

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Getting Started#

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

Select this integration
Configure the Updated Page in Database trigger
1. Connect your Notion account
2. Configure timer
3. Select a Database ID
4. Configure Include New Pages
5. Optional- Select one or more Property Types
6. Configure alert
Configure the Run Go Code action
1. Connect your Go account
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#

Updated Page in Database on Notion

Description:Emit new event when a page in a database is updated. To select a specific page, use `Updated Page ID` instead

Version:0.1.4

Key:notion-updated-page

View on GitHub

Notion Overview#

Notion's API allows for the creation, reading, updating, and deleting of pages, databases, and their contents within Notion. Using Pipedream's platform, you can build workflows that connect Notion with various other services to automate tasks such as content management, task tracking, and data synchronization. With Pipedream's serverless execution, you can trigger these workflows on a schedule, or by external events from other services, without managing any infrastructure.

Trigger Code#

import notion from "../../notion.app.mjs";
import sampleEmit from "./test-event.mjs";
import base from "../common/base.mjs";
import constants from "../common/constants.mjs";
import zlib from "zlib";

export default {
  ...base,
  key: "notion-updated-page",
  name: "Updated Page in Database", /* eslint-disable-line pipedream/source-name */
  description: "Emit new event when a page in a database is updated. To select a specific page, use `Updated Page ID` instead",
  version: "0.1.4",
  type: "source",
  dedupe: "unique",
  props: {
    ...base.props,
    databaseId: {
      propDefinition: [
        notion,
        "databaseId",
      ],
    },
    includeNewPages: {
      type: "boolean",
      label: "Include New Pages",
      description: "Set to `true` to emit events when pages are created. Set to `false` to ignore new pages.",
      default: true,
    },
    properties: {
      propDefinition: [
        notion,
        "propertyTypes",
        (c) => ({
          parentId: c.databaseId,
          parentType: "database",
        }),
      ],
      description: "Only emit events when one or more of the selected properties have changed",
      optional: true,
    },
    alert: {
      type: "alert",
      alertType: "info",
      content: "Source not saving? Your database might be too large. If deployment takes longer than one minute, an error will occur.",
    },
  },
  hooks: {
    async activate() {
      console.log("Activating: fetching pages and properties");
      this._setLastUpdatedTimestamp(Date.now());
      const propertyValues = {};
      const propertiesToCheck = await this._getPropertiesToCheck();
      const params = this.lastUpdatedSortParam();
      const pagesStream = this.notion.getPages(this.databaseId, params);
      for await (const page of pagesStream) {
        for (const propertyName of propertiesToCheck) {
          const currentValue = this._maybeRemoveFileSubItems(page.properties[propertyName]);
          propertyValues[page.id] = {
            ...propertyValues[page.id],
            [propertyName]: currentValue,
          };
        }
      }
      this._setPropertyValues(propertyValues);
    },
    async deactivate() {
      console.log("Deactivating: clearing states");
      this._setLastUpdatedTimestamp(null);
    },
  },
  methods: {
    ...base.methods,
    _getLastUpdatedTimestamp() {
      return this.db.get(constants.timestamps.LAST_EDITED_TIME);
    },
    _setLastUpdatedTimestamp(ts) {
      this.db.set(constants.timestamps.LAST_EDITED_TIME, ts);
    },
    _getPropertyValues() {
      const compressed = this.db.get("propertyValues");
      const buffer = Buffer.from(compressed, "base64");
      const decompressed = zlib.inflateSync(buffer).toString();
      return JSON.parse(decompressed);
    },
    _setPropertyValues(propertyValues) {
      const string = JSON.stringify(propertyValues);
      const compressed = zlib.deflateSync(string).toString("base64");
      this.db.set("propertyValues", compressed);
    },
    async _getPropertiesToCheck() {
      if (this.properties?.length) {
        return this.properties;
      }
      const { properties } = await this.notion.retrieveDatabase(this.databaseId);
      return Object.keys(properties);
    },
    _maybeRemoveFileSubItems(property) {
      // Files & Media type:
      // `url` and `expiry_time` are constantly updated by Notion, so ignore these fields
      if (property.type === "files") {
        const modified = structuredClone(property);
        for (const file of modified.files) {
          if (file.type === "file") {
            delete file.file;
          }
        }
        return modified;
      }
      return property;
    },
    _generateMeta(obj, summary) {
      const { id } = obj;
      const title = this.notion.extractPageTitle(obj);
      const ts = Date.now();
      return {
        id: `${id}-${ts}`,
        summary: `${summary}: ${title}`,
        ts,
      };
    },
    _emitEvent(page, changes = [], isNewPage = true) {
      const meta = isNewPage
        ? this._generateMeta(page, constants.summaries.PAGE_ADDED)
        : this._generateMeta(page, constants.summaries.PAGE_UPDATED);
      const event = {
        page,
        changes,
      };
      this.$emit(event, meta);
    },
  },
  async run() {
    const lastCheckedTimestamp = this._getLastUpdatedTimestamp();
    const propertyValues = this._getPropertyValues();

    if (!lastCheckedTimestamp) {
      // recently updated (deactivated / activated), skip execution
      console.log("Awaiting restart completion: skipping execution");
      return;
    }

    const params = {
      ...this.lastUpdatedSortParam(),
      filter: {
        timestamp: "last_edited_time",
        last_edited_time: {
          on_or_after: new Date(lastCheckedTimestamp).toISOString(),
        },
      },
    };
    let newLastUpdatedTimestamp = lastCheckedTimestamp;
    const propertiesToCheck = await this._getPropertiesToCheck();
    const pagesStream = this.notion.getPages(this.databaseId, params);

    for await (const page of pagesStream) {
      const changes = [];
      let isNewPage = false;
      let propertyHasChanged = false;

      newLastUpdatedTimestamp = Math.max(
        newLastUpdatedTimestamp,
        Date.parse(page.last_edited_time),
      );

      if (lastCheckedTimestamp > Date.parse(page.last_edited_time)) {
        break;
      }

      for (const propertyName of propertiesToCheck) {
        const previousValue = structuredClone(propertyValues[page.id]?.[propertyName]);
        // value used to compare and to save to this.db
        const currentValueToSave = this._maybeRemoveFileSubItems(page.properties[propertyName]);
        // (unmodified) value that should be emitted
        const currentValueToEmit = page.properties[propertyName];

        const pageExistsInDB = propertyValues[page.id] != null;
        const propertyChanged =
          JSON.stringify(previousValue) !== JSON.stringify(currentValueToSave);

        if (pageExistsInDB && propertyChanged) {
          propertyHasChanged = true;
          propertyValues[page.id] = {
            ...propertyValues[page.id],
            [propertyName]: currentValueToSave,
          };
          changes.push({
            property: propertyName,
            previousValue,
            currentValue: currentValueToEmit,
          });
        }

        if (!pageExistsInDB) {
          isNewPage = true;
          propertyHasChanged = true;
          propertyValues[page.id] = {
            [propertyName]: currentValueToSave,
          };
          changes.push({
            property: propertyName,
            previousValue,
            currentValue: currentValueToEmit,
          });
        }
      }

      if (isNewPage && !this.includeNewPages) {
        console.log(`Ignoring new page: ${page.id}`);
        continue;
      }

      if (propertyHasChanged) {
        this._emitEvent(page, changes, isNewPage);
      }
    }

    this._setLastUpdatedTimestamp(newLastUpdatedTimestamp);
    this._setPropertyValues(propertyValues);
  },
  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
Notion	`notion`	`app`	This component uses the Notion app.
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.
	`timer`	`$.interface.timer`
Database ID	`databaseId`	`string`	Select a value from the drop down menu.
Include New Pages	`includeNewPages`	`boolean`	Set to `true` to emit events when pages are created. Set to `false` to ignore new pages.
Property Types	`properties`	`string[]`	Select a value from the drop down menu.

Trigger Authentication#

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

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

About Notion#

Notion is a new tool that blends your everyday work apps into one. It's the all-in-one workspace for you and your team.

Action#

Run Go Code on Go

Description:Run any Go code and use any Go package available with a simple import. Refer to the [Pipedream Go docs](https://pipedream.com/docs/code/go) to learn more.

Version:0.0.2

Key:go-run-go-code

View on GitHub

Go Overview#

You can execute custom Go scripts on-demand or in response to various triggers and integrate with thousands of apps supported by Pipedream. Writing with Go on Pipedream enables backend operations like data processing, automation, or invoking other APIs, all within the Pipedream ecosystem. By leveraging Go's performance and efficiency, you can design powerful and fast workflows to streamline complex tasks.

Action Code#

import go from "../../go.app.mjs";

export default {
  name: "Run Go Code",
  version: "0.0.2",
  key: "go-run-go-code",
  description: "Run any Go code and use any Go package available with a simple import. Refer to the [Pipedream Go docs](https://pipedream.com/docs/code/go) to learn more.",
  props: {
    go,
  },
  type: "action",
  methods: {},
  async run({ $ }) {
    // Placeholder action for Go code app
  },
};