Crawler with Scrapeless API on New Table from PostgreSQL API

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New Table from the PostgreSQL API

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Crawler with the Scrapeless API

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Getting Started#

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

Select this integration
Configure the New Table trigger
1. Connect your PostgreSQL account
2. Configure Polling Interval
3. Select a Schema
Configure the Crawler action
1. Connect your Scrapeless account
2. Select a Please select a API server
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#

New Table on PostgreSQL

Description:Emit new event when a new table is added to the database. [See the documentation](https://node-postgres.com/features/queries)

Version:2.0.8

Key:postgresql-new-table

View on GitHub

PostgreSQL Overview#

On Pipedream, you can leverage the PostgreSQL app to create workflows that automate database operations, synchronize data across platforms, and react to database events in real-time. Think handling new row entries, updating records from webhooks, or even compiling reports on a set schedule. Pipedream's serverless platform provides a powerful way to connect PostgreSQL with a variety of apps, enabling you to create tailored automation that fits your specific needs.

Trigger Code#

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

export default {
  ...common,
  name: "New Table",
  key: "postgresql-new-table",
  description: "Emit new event when a new table is added to the database. [See the documentation](https://node-postgres.com/features/queries)",
  version: "2.0.8",
  type: "source",
  props: {
    ...common.props,
    schema: {
      propDefinition: [
        common.props.postgresql,
        "schema",
      ],
    },
  },
  async run() {
    const previousTables = this._getPreviousValues() || [];

    const tables = await this.postgresql.getTables(this.schema);

    const newTables = tables.filter((table) => !previousTables.includes(table));
    for (const table of newTables) {
      const meta = this.generateMeta(table);
      this.$emit(table, meta);
    }

    this._setPreviousValues(tables);
  },
};

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
PostgreSQL	`postgresql`	`app`	This component uses the PostgreSQL app.
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.
Polling Interval	`timer`	`$.interface.timer`	Pipedream will poll the API on this schedule
Schema	`schema`	`string`	Select a value from the drop down menu.

Trigger Authentication#

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

Connecting to Restricted Databases

Either enable the shared static IP for this account below, or configure a VPC to deploy any workflow in your workspace to a private network with a dedicated static IP. Learn more in our docs

SSL Setup

Configure SSL on your PostgreSQL database by providing the CA (Certificate Authority), and choosing between Full Verification, Verify Certificate Authority (CA), or Skip Verification. Skipping verification is not recommended as this has serious security implications

About PostgreSQL#

PostgreSQL is a free and open-source relational database management system emphasizing extensibility and SQL compliance.

Action#

Crawler on Scrapeless

Description:Crawl any website at scale and say goodbye to blocks. [See the documentation](https://apidocs.scrapeless.com/api-17509010).

Version:0.0.2

Key:scrapeless-crawler

View on GitHub

Scrapeless Overview#

Scrapeless – your go-to platform for powerful, compliant web data extraction. With tools like Universal Scraping API, Scrapeless makes it easy to access and gather data from complex sites. Focus on insights while we handle the technical hurdles. Scrapeless – data extraction made simple.

Action Code#

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

export default {
  key: "scrapeless-crawler",
  name: "Crawler",
  description: "Crawl any website at scale and say goodbye to blocks. [See the documentation](https://apidocs.scrapeless.com/api-17509010).",
  version: "0.0.2",
  type: "action",
  props: {
    scrapeless,
    apiServer: {
      type: "string",
      label: "Please select a API server",
      description: "Please select a API server to use",
      default: "crawl",
      options: [
        {
          label: "Crawl",
          value: "crawl",
        },
        {
          label: "Scrape",
          value: "scrape",
        },
      ],
      reloadProps: true,
    },
  },
  async run({ $ }) {
    const {
      scrapeless, apiServer, ...inputProps
    } = this;

    const browserOptions = {
      "proxy_country": "ANY",
      "session_name": "Crawl",
      "session_recording": true,
      "session_ttl": 900,
    };

    let response;

    if (apiServer === "crawl") {
      response =
        await scrapeless._scrapelessClient().scrapingCrawl.crawl.crawlUrl(inputProps.url, {
          limit: inputProps.limitCrawlPages,
          browserOptions,
        });
    }

    if (apiServer === "scrape") {
      response =
        await scrapeless._scrapelessClient().scrapingCrawl.scrape.scrapeUrl(inputProps.url, {
          browserOptions,
        });
    }

    if (response?.status === "completed" && response?.data) {
      $.export("$summary", `Successfully retrieved crawling results for ${inputProps.url}`);
      return response.data;
    } else {
      throw new Error(response?.error || "Failed to retrieve crawling results");
    }
  },
  additionalProps() {
    const { apiServer } = this;

    const props = {};

    if (apiServer === "crawl" || apiServer === "scrape") {
      props.url = {
        type: "string",
        label: "URL to Crawl",
        description: "If you want to crawl in batches, please refer to the SDK of the document",
      };
    }

    if (apiServer === "crawl") {
      props.limitCrawlPages = {
        type: "integer",
        label: "Number Of Subpages",
        default: 5,
        description: "Max number of results to return",
      };
    }

    return props;
  },
};

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
Scrapeless	`scrapeless`	`app`	This component uses the Scrapeless app.
Please select a API server	`apiServer`	`string`	Select a value from the drop down menu:`{ "label": "Crawl", "value": "crawl" }{ "label": "Scrape", "value": "scrape" }`