Get Component with Pipedream API on New Transaction Posted from PolygonScan API

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New Transaction Posted from the PolygonScan API

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Getting Started#

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

Select this integration
Configure the New Transaction Posted trigger
1. Connect your PolygonScan account
2. Configure Address
3. Configure timer
Configure the Get Component action
1. Connect your Pipedream account
2. Configure Component Key
3. Optional- Configure Pipedream Registry
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 Transaction Posted on PolygonScan

Description:Emit new event when a new transaction is posted on the PolygonScan network for a specific address.

Version:0.0.1

Key:polygonscan-transaction-posted

View on GitHub

PolygonScan Overview#

The PolygonScan API provides access to blockchain data from the Polygon network. It allows for querying of blocks, transactions, and wallet addresses, among other data points. With Pipedream, you can integrate this API to automate monitoring, alerting, and data analysis tasks. You can leverage Pipedream's serverless platform to create workflows that react to events on the Polygon network in real-time, without having to manage infrastructure or write complex backend code.

Trigger Code#

import { DEFAULT_POLLING_SOURCE_TIMER_INTERVAL } from "@pipedream/platform";
import polygonscan from "../../polygonscan.app.mjs";
import sampleEmit from "./test-event.mjs";

export default {
  key: "polygonscan-transaction-posted",
  name: "New Transaction Posted",
  description: "Emit new event when a new transaction is posted on the PolygonScan network for a specific address.",
  version: "0.0.1",
  type: "source",
  dedupe: "unique",
  props: {
    polygonscan,
    db: "$.service.db",
    address: {
      propDefinition: [
        polygonscan,
        "address",
      ],
    },
    timer: {
      type: "$.interface.timer",
      default: {
        intervalSeconds: DEFAULT_POLLING_SOURCE_TIMER_INTERVAL,
      },
    },
  },
  methods: {
    _getLastBlockNumber() {
      return this.db.get("lastBlockNumber") || 0;
    },
    _setLastBlockNumber(lastBlockNumber = null) {
      this.db.set("lastBlockNumber", lastBlockNumber);
    },
    async startEvent(maxResults = 0) {
      const lastBlockNumber = this._getLastBlockNumber();

      const response = this.polygonscan.paginate({
        fn: this.polygonscan.getTransactionsByAddress,
        maxResults,
        params: {
          startblock: lastBlockNumber,
          address: this.address,
          sort: "desc",
        },
      });

      let responseArray = [];

      for await (const item of response) {
        responseArray.push(item);
      }

      if (responseArray.length) this._setLastBlockNumber(responseArray[0].blockNumber);

      for (const item of responseArray) {
        this.$emit(item, {
          id: item.blockNumber,
          summary: `New transaction with hash: ${item.hash}`,
          ts: item.timeStamp,
        });
      }
    },
  },
  hooks: {
    async deploy() {
      await this.startEvent(25);
    },
  },
  async run() {
    await this.startEvent();
  },
  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
PolygonScan	`polygonscan`	`app`	This component uses the PolygonScan app.
N/A	`db`	`$.service.db`	This component uses `$.service.db` to maintain state between executions.
Address	`address`	`string`	The address to watch for new transactions.
	`timer`	`$.interface.timer`

Trigger Authentication#

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

About PolygonScan#

Blockchain explorer for the Polygon (MATIC) network.

Action#

Get Component on Pipedream

Description:Get info for a published component. [See docs](https://pipedream.com/docs/api/rest/#get-a-component)

Version:0.1.0

Key:pipedream-get-component

View on GitHub

Pipedream Overview#

Pipedream is an API that allows you to build applications that can connect to
various data sources and processes them in real-time. You can use Pipedream to
create applications that can perform ETL (Extract, Transform, and Load) tasks,
as well as to create data-driven workflows.

Some examples of applications you can build using the Pipedream API include:

An application that can extract data from a database, transform it, and then
load it into another database.
An application that can monitor a data source for changes, and then trigger a
workflow in response to those changes.
An application that can poll an API for new data, and then process that data
in real-time.

Action Code#

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

export default {
  key: "pipedream-get-component",
  name: "Get Component",
  description: "Get info for a published component. [See docs](https://pipedream.com/docs/api/rest/#get-a-component)",
  version: "0.1.0",
  type: "action",
  props: {
    pipedream,
    componentKey: {
      propDefinition: [
        pipedream,
        "componentKey",
      ],
    },
    globalRegistry: {
      type: "boolean",
      label: "Pipedream Registry",
      description: "Defaults to `true`. If set to `true`, this will fetch component data from the public Pipedream registry. Set to `false` to search your private published components.",
      optional: true,
      default: true,
    },
  },
  async run({ $ }) {
    const { data } = await this.pipedream.getComponent(this.componentKey, this.globalRegistry);

    if (data) {
      $.export("$summary", `Succesfully fetched ${this.componentKey}`);
      return data;
    }

    console.log(`${this.componentKey} was not found`);
  },
};

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
Pipedream	`pipedream`	`app`	This component uses the Pipedream app.
Component Key	`componentKey`	`string`	The component key (identified by the key property within the component's source code) you'd like to fetch metadata for (example: `github-new-commit-instant`)
Pipedream Registry	`globalRegistry`	`boolean`	Defaults to `true`. If set to `true`, this will fetch component data from the public Pipedream registry. Set to `false` to search your private published components.

Action Authentication#

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

About Pipedream#

Integration platform for developers

More Ways to Connect Pipedream + PolygonScan#

Other Popular Integrations#

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Get Component with Pipedream API on New Transaction Posted from PolygonScan API

Pipedream makes it easy to connect APIs for Pipedream, PolygonScan and 2,400+ other apps remarkably fast.

Trusted by 1,000,000+ developers from startups to Fortune 500 companies

Developers ♥ Pipedream

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