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#

Trigger a workflow on Updated Page in Database with Notion API. When you configure and deploy the workflow, it will run on Pipedream's servers 24x7 for free.

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
Add steps to connect to 2,400+ APIs using code and no-code building blocks
Deploy the workflow
Send a test event to validate your setup
Turn on the trigger

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Details#

This is a pre-built, source-available component from Pipedream's GitHub repo. The component is 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.

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

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,
};

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.

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: