Prepare Smart Contract Transaction with Overledger API on New Item in Feed from RSS API

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New Item in Feed from the RSS API

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Prepare Smart Contract Transaction with the Overledger API

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Getting Started#

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

Select this integration
Configure the New Item in Feed trigger
1. Connect your RSS account
2. Configure timer
3. Configure Feed URL
4. Configure Published After
Configure the Prepare Smart Contract Transaction action
1. Connect your Overledger account
2. Select a Overledger Instance
3. Select a Location Technology
4. Configure Signing Account ID
5. Configure Smart Contract ID
6. Configure Function Name
7. Optional- Configure Input Parameters
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 Item in Feed on RSS

Description:Emit new items from an RSS feed

Version:1.2.7

Key:rss-new-item-in-feed

View on GitHub

RSS Overview#

The RSS app allows users to automatically fetch and parse updates from web feeds. This functionality is pivotal for staying abreast of content changes or updates from websites, blogs, and news outlets that offer RSS feeds. With Pipedream, you can harness the RSS API to trigger workflows that enable a broad range of automations, like content aggregation, monitoring for specific keywords, notifications, and data synchronization across platforms.

Trigger Code#

import { defineSource } from "@pipedream/types";
import rss from "../../app/rss.app.mjs";
import rssCommon from "../common/common.mjs";
export default defineSource({
    ...rssCommon,
    key: "rss-new-item-in-feed",
    name: "New Item in Feed",
    description: "Emit new items from an RSS feed",
    version: "1.2.7",
    type: "source",
    dedupe: "unique",
    props: {
        ...rssCommon.props,
        url: {
            propDefinition: [
                rss,
                "url",
            ],
        },
        publishedAfter: {
            type: "string",
            label: "Published After",
            description: "Emit items published after the specified date in ISO 8601 format .e.g `2022-12-07T12:57:10+07:00`",
            default: new Date(Date.now() - 24 * 60 * 60 * 1000).toISOString(), // default to one day ago
        },
    },
    hooks: {
        async activate() {
            // Try to parse the feed one time to confirm we can fetch and parse.
            // The code will throw any errors to the user.
            await this.rss.fetchAndParseFeed(this.url);
        },
    },
    methods: {
        ...rssCommon.methods,
        generateMeta: function (item) {
            return {
                id: this.rss.itemKey(item),
                summary: item.title,
                ts: Date.now(),
            };
        },
    },
    async run() {
        const items = await this.rss.fetchAndParseFeed(this.url);
        for (const item of items.reverse()) {
            const publishedAfter = +new Date(this.publishedAfter);
            const ts = this.rss.itemTs(item);
            if (Number.isNaN(publishedAfter) || publishedAfter > ts) {
                continue;
            }
            const meta = this.generateMeta(item);
            this.$emit(item, meta);
        }
    },
});

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
RSS	`rss`	`app`	This component uses the RSS app.
	`timer`	`$.interface.timer`	How often you want to poll the feed for new items
Feed URL	`url`	`string`	Enter the URL for any public RSS feed
Published After	`publishedAfter`	`string`	Emit items published after the specified date in ISO 8601 format .e.g `2022-12-07T12:57:10+07:00`

Trigger Authentication#

The RSS API does not require authentication.

About RSS#

Real Simple Syndication

Action#

Prepare Smart Contract Transaction on Overledger

Description:Prepares a smart contract transaction for signing on the Overledger platform. [See the documentation](https://developers.quant.network/reference/preparesmartcontractwrite)

Version:0.0.2

Key:overledger-prepare-smart-contract-transaction

View on GitHub

Overledger Overview#

The Overledger API by Quant Network allows developers to interact with multiple blockchain networks. It facilitates the creation, reading, and execution of smart contracts and transactions across different blockchains. This API simplifies the complex nature of blockchain interoperability, enabling multi-chain applications (MApps) through a single gateway.

Action Code#

import {
  NETWORK_OPTIONS, TECHNOLOGY_OPTIONS,
} from "../../common/constants.mjs";
import { parseObject } from "../../common/utils.mjs";
import overledger from "../../overledger.app.mjs";

export default {
  key: "overledger-prepare-smart-contract-transaction",
  name: "Prepare Smart Contract Transaction",
  description: "Prepares a smart contract transaction for signing on the Overledger platform. [See the documentation](https://developers.quant.network/reference/preparesmartcontractwrite)",
  version: "0.0.2",
  type: "action",
  props: {
    overledger,
    environment: {
      propDefinition: [
        overledger,
        "environment",
      ],
    },
    locationTechnology: {
      type: "string",
      label: "Location Technology",
      description: "The technology of the blockchain that the transaction will be submitted to",
      options: TECHNOLOGY_OPTIONS,
      reloadProps: true,
    },
    signingAccountId: {
      type: "string",
      label: "Signing Account ID",
      description: "The blockchain account ID/address that will be sending this transaction",
    },
    smartContractId: {
      type: "string",
      label: "Smart Contract ID",
      description: "The ID/address of the smart contract to interact with.",

    },
    functionName: {
      type: "string",
      label: "Function Name",
      description: "The name of the function to call on the smart contract.",
    },
    inputParameters: {
      type: "string[]",
      label: "Input Parameters",
      description: "The input parameters for the smart contract function, in JSON format.",
      optional: true,
    },
  },
  async additionalProps() {
    const props = {};
    if (this.locationTechnology) {
      props.locationNetwork = {
        type: "string",
        label: "Location Network",
        description: "The blockchain network the transaction will be submitted to.",
        options: NETWORK_OPTIONS[this.locationTechnology],
      };
    }
    return props;
  },
  async run({ $ }) {
    const requestBody = {
      location: {
        technology: this.locationTechnology,
        network: this.locationNetwork,
      },
      signingAccountId: this.signingAccountId,
      functionName: this.functionName,
      smartContractId: this.smartContractId,
      inputParameters: parseObject(this.inputParameters), //parse these values using the parseObject function at this shouls turn the JSON string into JSON objects to used in the request body.
    };

    const response = await this.overledger.prepareSmartContractTransaction({
      $,
      environment: this.environment,
      data: requestBody,
    });
    $.export("$summary", "Smart contract transaction prepared successfully");
    return response;
  },
};

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
Overledger	`overledger`	`app`	This component uses the Overledger app.
Overledger Instance	`environment`	`string`	Select a value from the drop down menu:`{ "label": "Sandbox", "value": "sandbox" }{ "label": "Overledger", "value": "overledger" }`
Location Technology	`locationTechnology`	`string`	Select a value from the drop down menu:`{ "label": "Ethereum", "value": "ethereum" }{ "label": "Substrate", "value": "substrate" }{ "label": "XRP Ledger", "value": "xrp ledger" }{ "label": "Bitcoin", "value": "bitcoin" }{ "label": "Hyperledger Fabric", "value": "hyperledger fabric" }`
Signing Account ID	`signingAccountId`	`string`	The blockchain account ID/address that will be sending this transaction
Smart Contract ID	`smartContractId`	`string`	The ID/address of the smart contract to interact with.
Function Name	`functionName`	`string`	The name of the function to call on the smart contract.
Input Parameters	`inputParameters`	`string[]`	The input parameters for the smart contract function, in JSON format.

Action Authentication#

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

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

overledger/read.scope

Prepare Smart Contract Transaction with Overledger API on New Item in Feed from RSS API

Pipedream makes it easy to connect APIs for Overledger, RSS 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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